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CN109579789A - Shaft of vertical well deflection monitoring method based on obliquity sensor - Google Patents

Shaft of vertical well deflection monitoring method based on obliquity sensor Download PDF

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Publication number
CN109579789A
CN109579789A CN201811600525.3A CN201811600525A CN109579789A CN 109579789 A CN109579789 A CN 109579789A CN 201811600525 A CN201811600525 A CN 201811600525A CN 109579789 A CN109579789 A CN 109579789A
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China
Prior art keywords
end feet
resistance
grounded
shaft
caching
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CN201811600525.3A
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CN109579789B (en
Inventor
杨春满
梁智鹏
景惧斌
郭鹏
孙迪
王苏龙
王媛
孙晓平
刘志生
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Beijing China Coal Mine Engineering Co ltd
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Beijing China Coal Mine Engineering Co ltd
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Priority to CN201811600525.3A priority Critical patent/CN109579789B/en
Publication of CN109579789A publication Critical patent/CN109579789A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00Measuring inclination, e.g. by clinometers, by levels
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • G01B11/16Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • G01B11/18Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge using photoelastic elements

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)

Abstract

The present invention discloses the shaft of vertical well deflection monitoring method based on obliquity sensor, along 2~3 datum marks of basement rock location arrangements, in each datum mark mounted angle sensor, in case checking;Several measuring points are set along the borehole wall of main shaft axial direction, in each measuring point mounted angle sensor;Matched power supply and data transmission cable are installed for obliquity sensor and strain transducer, ground will be connected to, and connect automatic acquisition equipment and system, realizes automatic, acquisition in real time.It is used in obliquity sensor measurement shaft of vertical well deflection monitoring method, measurement accuracy is high, resolution ratio be 0.001 °, 0.005 ° of gamut scope precision, 0.001 °/DEG C of temperature drift, good environmental adaptability, degree of protection IP67 can run well under -30 DEG C~85 DEG C environment, be able to satisfy the requirement of coal mine shaft lining pit shaft deflection monitoring, sensor signal is transferred to the ground controlling terminal on well by main cable, realizes automatic, acquisition in real time.

Description

Shaft of vertical well deflection monitoring method based on obliquity sensor
Technical field
The present invention relates to coal mine shaft lining pit shaft deflection monitoring technical fields.Specifically based on the vertical of obliquity sensor Pit shaft deflection monitoring method.
Background technique
Currently, domestic monitor coal mine shaft lining pit shaft deflection, often continues to use traditional suspending steel wire rope and carry out deformation survey It is longer to occupy the pit shaft time, and cannot achieve automatic monitoring for the geometric measurement method of amount, influences the normal production of mine.Inclination angle passes Sensor has a more application in the measurement of vertical building tilt, such as skyscraper, overhead transmission line shaft tower tilt angle Measurement etc., but be not yet applied and promote in mining industry field.Therefore, how to design one kind can be applied to coal mine shaft lining pit shaft Deflection monitoring method, and have the characteristics that precision height, good environmental adaptability, meet the requirement of coal mine shaft lining pit shaft deflection monitoring It is this field always in the project of research.
Summary of the invention
For this purpose, technical problem to be solved by the present invention lies in provide a kind of base for realizing long-range, automatic and real-time acquisition In the shaft of vertical well deflection monitoring method of obliquity sensor.
In order to solve the above technical problems, the invention provides the following technical scheme:
Shaft of vertical well deflection monitoring method based on obliquity sensor, includes the following steps:
(1) on the borehole wall, along 2~3 datum marks of basement rock location arrangements, in each datum mark mounted angle sensor, with It is standby to check;
(2) several measuring points are set along the borehole wall of main shaft axial direction, in each measuring point mounted angle sensor;It utilizes The data comparison that the data and datum mark obliquity sensor that measuring point obliquity sensor measures measure, determines the deflection of each measuring point Measure size;And slot on the borehole wall of the obliquity sensor same level of measuring point, strain transducer is installed in slot, according to answering Become the data of sensor acquisition, measures shaft wall structure stress, and then calculate the deformation of pit shaft part;
(3) matched power supply and data transmission cable are installed for obliquity sensor and strain transducer, by power supply and data Transmission cable is connected to ground, and connects automatic acquisition equipment and system, realizes automatic, acquisition in real time;Finally sensed according to inclination angle The data of device acquisition, the skew curve of entire pit shaft measuring section is fitted by least square method.
The above-mentioned shaft of vertical well deflection monitoring method based on obliquity sensor, in step (2):
(2-1) several monitoring section layers are axially arranged along main shaft, except well head to the first monitoring section layer L1 away from From for 1m-20m, the distance of remaining each monitoring section interlayer is 40m-100m;
(2-2) arranges measuring point along the borehole wall of each monitoring section layer, and obliquity sensor is fixedly mounted on the borehole wall at measuring point: 4 obliquity sensors of installation are equally spaced on the borehole wall of the first monitoring section layer L1;The borehole wall of remaining each monitoring section layer On be also equally spaced 4 obliquity sensors of installation, and slot on the borehole wall of same level, 5 groups of strains be installed in slot Sensor;Strain transducer described in every group includes lateral fiber Bragg grating strain sensor and longitudinal fiber Bragg grating strain sensor, And lateral fiber Bragg grating strain sensor and longitudinal fiber Bragg grating strain sensor are cascaded.
The above-mentioned shaft of vertical well deflection monitoring method based on obliquity sensor, in step (2-1), along main shaft axis 8 monitoring section layers are arranged to -10m~-460m: -10m is that the first monitoring section layer L1, -100m is the second monitoring section layer L2, -160m are third monitoring section layer L3, and -240m is that the 4th monitoring section layer L4, -290m is the 5th monitoring section layer L5, - It is the 8th monitoring section layer L8 that 330m, which is the 7th monitoring section layer L7, -460m for the 6th monitoring section layer L6, -420m,;
In step (2-2), 4 obliquity sensors of installation are equally spaced on the borehole wall of the first monitoring section layer L1; 4 obliquity sensors of installation are also equally spaced on the borehole wall of the second monitoring section layer monitoring section layer of L2~the 8th L8, and And equidistantly slot on the borehole wall of same level, 5 groups of strain transducers are installed in slot.
The above-mentioned shaft of vertical well deflection monitoring method based on obliquity sensor, in step (3):
(3-1) arrangement main cable and leader cable: it after obliquity sensor and strain transducer are installed, transfer and leads from well head Optical cable and leader cable, are fixed from top to bottom between manway;
(3-2) the first monitoring section layer L1 to the 8th each monitoring section layer of monitoring section layer L8 4 obliquity sensors It is connected in series, is introduced into protecting box with optical cable, formed a link, be then linked into main cable;4 obliquity sensor cables It is together in series, is introduced into protecting box, be then linked into leader cable;It is attached that the protecting box is mounted on shaft of vertical well solar main cable Closely;
5 groups of strain sensings of each monitoring section layer of (3-3) the second monitoring section layer L2 to the 8th monitoring section layer L8 Device is connected in series with optical cable, is introduced into protecting box, is formed another link, is then linked into main cable;5 groups of strain transducers are used Cable series connection gets up, and is introduced into protecting box, is then linked into leader cable;
Main cable and leader cable are connected to the automatic acquisition equipment and system of ground controlling terminal by (3-4), realize it is automatic, Acquisition in real time.
The above-mentioned shaft of vertical well deflection monitoring method based on obliquity sensor, the main cable are 16 core optical cables;Ground control The a set of 15 optical passage signal processors of the automatic acquisition equipment and system configuration of terminal processed are monitored on-line.
The above-mentioned shaft of vertical well deflection monitoring method based on obliquity sensor, the obliquity sensor includes: to be mutually perpendicular to The uniaxial sensing chip of first placed and the second uniaxial sensing chip;Described first uniaxial sensing chip and the first caching amplification electricity Road is connected;Described second uniaxial sensing chip is connected with the second caching amplifying circuit;The first caching amplifying circuit and second Caching amplifying circuit is connected with single-chip microcontroller;The single-chip microcontroller is connected with signal conversion module.
The above-mentioned shaft of vertical well deflection monitoring method based on obliquity sensor, the obliquity sensor further includes power supply pressure stabilizing Circuit, with the described first uniaxial sensing chip, the first caching amplifying circuit, the second uniaxial sensing chip, the second caching amplification electricity Road, single-chip microcontroller, signal conversion module are connected;The power supply stabilization circuit is used to delay to the described first uniaxial sensing chip, first It deposits amplifying circuit, the second uniaxial sensing chip, the second caching amplifying circuit and 5 volts of voltages of high quality temperature-compensating is provided, give institute Single-chip microcontroller is stated 3.3 volts of voltages are provided and provide 5 volts of voltages to the signal conversion module;The power supply stabilization circuit input voltage 3.3 volts and 5 volts are exported through MIC5202-33YM, MIC5202-50YM, the respectively described single-chip microcontroller and signal conversion module are powered; 5 volts of voltages of outputting high quality are the described first uniaxial biography after REF02AU carries out temperature-compensating after chip 5430 exports 5 volts Sense chip, the first caching amplifying circuit, the second uniaxial sensing chip, the second caching amplifying circuit power supply.
The above-mentioned shaft of vertical well deflection monitoring method based on obliquity sensor, the described first uniaxial sensing chip and/or institute Stating the second uniaxial sensing chip is SCA103T_D04 chip;
The end feet 6,9,10 of described first uniaxial inclination angle sensing chip is grounded together, and end feet 12 connects 5 volts of voltages, and end feet 11 is logical It crosses resistance R1 and connects the first caching amplifying circuit, end feet 5 connects the first caching amplifying circuit by resistance R5;
The end feet 6,9,10 of described second uniaxial inclination angle sensing chip is grounded together, and end feet 12 connects 5 volts of voltages, and passes through electricity Hold C1 ground connection, end feet 11 connects the second caching amplifying circuit by resistance R10, and end feet 5 connects described second by resistance R15 and delays Deposit amplifying circuit.
The above-mentioned shaft of vertical well deflection monitoring method based on obliquity sensor, the first caching amplifying circuit and/or institute Stating the second caching amplifying circuit is OP284;
The end feet 3 and end feet 5 of the first caching amplifying circuit are grounded by capacitor C4 and capacitor C2 respectively, and end feet 4 connects Ground, end feet 8 connects 5 volts of voltages, and is grounded by capacitor C5;End feet 1, end feet 2 are grounded after being shorted by resistance R2 and resistance R3, electricity The intermediate contact of resistance R2 and resistance R3 is connected to the single-chip microcontroller, and end feet 6, end feet 7 are grounded after being shorted by resistance R6 and resistance R8, Resistance R6 and resistance R8 intermediate contact are connected to the single-chip microcontroller;
The end feet 3 and end feet 5 of the second caching amplifying circuit are grounded by capacitor C10 and capacitor C11 respectively, end feet 4 Ground connection, end feet 8 connects 5 volts of voltages, and is grounded by capacitor C30, and end feet 1, end feet 2 connect after being shorted by resistance R11 and resistance R12 Ground, resistance R11 and resistance R12 intermediate contact are connected to the single-chip microcontroller, end feet 6, end feet 7 be shorted after by resistance R16 and resistance R17 ground connection, resistance R16 and resistance R17 intermediate contact are connected to the single-chip microcontroller.
The above-mentioned shaft of vertical well deflection monitoring method based on obliquity sensor, the single-chip microcontroller are C8051F350 chip;Institute The end feet 21 for stating single-chip microcontroller is connected to 3.3 volts of voltages, and end feet 21 is grounded further through capacitor C6, and end feet 9, end feet 32 are grounded, end feet 11, End feet 12 is sequentially connected to emulation downloader end feet 3, end feet 2 respectively, and emulation downloader end feet 1 is grounded, and emulation downloader end feet 2 passes through Resistance R14 connects 3.3 volts of voltages;The respectively described first caching amplifying circuit of end feet 1, end feet 2, end feet 7 and end feet 8, second are delayed The output voltage of amplifying circuit is deposited, end feet 10 connects 3.3 volts, and end feet 19 connects the base stage of triode Q1, and end feet 17, end feet 18 connect described Signal conversion module;The connecting pin of end feet 15, end feet 16 indirect resistance R13 and crystal oscillator Y1, crystal oscillator Y1 and end feet 15 passes through capacitor C12 ground connection, crystal oscillator Y1 and the connecting pin of end feet 16 are grounded by capacitor C13;End feet 23 connects 3.3 volts through resistance R9, and end feet 28 passes through Resistance R22 ground connection, end feet 31 are grounded through resistance R7, connect 5 volts of voltages through resistance R4;
The signal conversion module is 888 chip of HVD;End feet 1, the end feet 4 of 888 chip of HVD connect the monolithic Machine, end feet 2, end feet 3, which are shorted, connects 5 volts of voltages, the hair for being shorted point while being connected to triode Q1 of end feet 2, end feet 3 through resistance R21 Emitter-base bandgap grading, the grounded collector of triode Q1;End feet 5 is grounded, and end feet 8 connects 5 volts of voltages, and is grounded through capacitor C16, and end feet 6 connects letter Number output terminals A, end feet 7 meet signal output end B;The indirect a pair of of end feet 6 and end feet 7 inhibits pipe D3, two-way transient state suppression to transient state The point that tubulation D3 is connect with end feet 7 connects after a two-way transient state inhibits pipe D4 again and is grounded, and two-way transient state inhibits pipe D3 to connect with end feet 7 Point connecting resistance R24 be grounded after connecting resistance R25 again, the point that two-way transient state inhibits pipe D3 to connect with end feet 6 connects a two-way transient state again It is grounded after inhibiting pipe D2, connecting resistance R18 is followed by 5 volts of electricity to the point connecting resistance R19 that two-way transient state inhibits pipe D3 to connect with end feet 6 again Pressure.
Technical solution of the present invention achieves following beneficial technical effect:
The obliquity sensor for the monitoring of coal mine shaft lining pit shaft deflection that the present invention uses, can be installed on shaft wall structure, The inclination angle of shaft structure spatially is measured, pit shaft can be measured along centerline direction angle change amount, by converting To the deviation data of shaft structure, measurement accuracy is high, and resolution ratio is 0.001 °, and 0.005 ° of gamut scope precision, temperature drift 0.001 °/DEG C, good environmental adaptability, degree of protection IP67 can run well under -30 DEG C~85 DEG C environment, be able to satisfy coal The requirement of mine shaft of vertical well deflection monitoring.
In addition, in order to guarantee that sensing chip work in inclination angle in optimum state, carries out individually designed, selection to the power supply of its chip The high accurate supply voltage of temperature stability.In order to be applicable in harsh environments, which takes highly dense seal structure design and protects Demonstrate,prove sensor long-term stable operation.With good rain-proof, dust-proof and moisture proof, protection from fumes, mould proof ability.
After connecting obliquity sensor and strain transducer, sensor signal is transferred to the ground on well by main cable and controls Terminal processed, tester can be realized by automatic acquisition equipment and system and test in wellhead ground, realizes and adopts automatically, in real time Collection.
Detailed description of the invention
The present invention is based on the pit shaft profile monitoring point of the shaft of vertical well deflection monitoring method of obliquity sensor arrangements to illustrate by Fig. 1 Figure;
The present invention is based on the pit shaft monitoring section layer measuring point of the shaft of vertical well deflection monitoring method of obliquity sensor sensings by Fig. 2 Device arrangement schematic diagram;
The present invention is based on the structural representations of the obliquity sensor of the shaft of vertical well deflection monitoring method of obliquity sensor by Fig. 3 Figure;
The present invention is based on the structural schematic diagrams of the obliquity sensor of the shaft of vertical well deflection monitoring method of obliquity sensor by Fig. 4 (another embodiment);
The present invention is based on the obliquity sensor power supply stabilization circuits of the shaft of vertical well deflection monitoring method of obliquity sensor by Fig. 5 Circuit diagram;
The present invention is based on the uniaxial sensings of the obliquity sensor first of the shaft of vertical well deflection monitoring method of obliquity sensor by Fig. 6 The circuit diagram of chip and the first caching amplifying circuit;
The present invention is based on the uniaxial sensings of the obliquity sensor second of the shaft of vertical well deflection monitoring method of obliquity sensor by Fig. 7 The circuit diagram of chip and the second caching amplifying circuit;
The present invention is based on the circuits of the obliquity sensor single-chip microcontroller of the shaft of vertical well deflection monitoring method of obliquity sensor by Fig. 8 Figure;
The present invention is based on the obliquity sensor signal conversion modules of the shaft of vertical well deflection monitoring method of obliquity sensor by Fig. 9 Circuit diagram.
Appended drawing reference indicates in figure are as follows: 1- obliquity sensor;2- transverse direction fiber Bragg grating strain sensor;The longitudinal direction 3- optical fiber light Grid strain transducer;The 4- borehole wall;5- main cable;6- leader cable;The ground 7- controlling terminal;The uniaxial sensing chip of 10- first;20- Second uniaxial sensing chip;30- first caches amplifying circuit;40- second caches amplifying circuit;50- single-chip microcontroller;60- signal turns Change the mold block;70- power supply stabilization circuit.
Specific embodiment
The principle of shaft of vertical well deflection monitoring method of the present invention: by shaft structure side section be assumed to one section it is fixed outstanding Arm beam measures measuring point inclination angle by obliquity sensor when the borehole wall glances off under the action of additional stress, can by calculating Obtain the deflection of measuring section pit shaft.The number of sensors of setting is more, and measurement accuracy is about high, quasi- finally by least square method Close out the skew curve of entire pit shaft measuring section.Compared with traditional measurement method, well can be directly measured using obliquity sensor The each position relative displacement situation of change of cylinder.
Principle based on monitoring method, the shaft of vertical well deflection monitoring method of the invention based on obliquity sensor, including Following steps:
(1) on the borehole wall, along 2~3 datum marks of basement rock location arrangements, in each datum mark mounted angle sensor, with It is standby to check;
(2) several measuring points are set along the borehole wall of main shaft axial direction, in each measuring point mounted angle sensor;It utilizes The data comparison that the data and datum mark obliquity sensor that measuring point obliquity sensor measures measure, determines the deflection of each measuring point Measure size;And slot on the borehole wall of the obliquity sensor same level of measuring point, strain transducer is installed in slot, according to answering Become the data of sensor acquisition, measures shaft wall structure stress, and then calculate the deformation of pit shaft part;The pit shaft height of the present embodiment For -10m~-460m;
In step (2-1), 8 monitoring section layers are arranged along the axial -10m~-460m of main shaft: -10m is the first prison Sectional layer L1 is surveyed, -100m is that the second monitoring section layer L2, -160m is third monitoring section layer L3, and -240m is that the 4th monitoring is disconnected It is the 7th monitoring section layer that surface layer L4, -290m, which are the 6th monitoring section layer L6, -420m for the 5th monitoring section layer L5, -330m, L7, -460m are the 8th monitoring section layer L8;As depicted in figs. 1 and 2.
In step (2-2), 4 obliquity sensors 2 of installation are equally spaced on the borehole wall 4 of first layer L1;Second Also 4 obliquity sensors 1 of installation are equally spaced on the borehole wall 4 of layer L2~eight layer L8, and on the borehole wall of same level Equidistant fluting, installs 5 groups of strain transducers in slot;Strain transducer described in every group includes lateral fiber grating strain sensor Device 2 and longitudinal fiber Bragg grating strain sensor 3, and lateral fiber Bragg grating strain sensor 2 and longitudinal fiber grating strain sensor Device 3 is cascaded;Each monitoring section point layout of second layer L2~eight layer L8 is as shown in Figure 2.Entire pit shaft need to arrange 32 A obliquity sensor.
(3) matched power supply and data transmission cable are installed for obliquity sensor and strain transducer, ground will be connected to, and Automatic acquisition equipment and system are connected, realizes automatic, acquisition in real time;The data finally acquired according to obliquity sensor, by most Small square law fits the skew curve of entire pit shaft measuring section.
(3-1) arrangement main cable 5 and leader cable 6: obliquity sensor 1 and strain transducer are slotted after being installed, from well Mouth decentralization main cable 5 and leader cable 6, are fixed from top to bottom between manway;
(3-2) the first monitoring section layer L1 to the 8th each monitoring section layer of monitoring section layer L8 4 obliquity sensors 1 It is connected in series, is introduced into protecting box with optical cable, formed a link, be then linked into main cable 5;41 electricity consumptions of obliquity sensor Cable is together in series, and is introduced into protecting box, is then linked into leader cable 6;The protecting box is mounted on shaft of vertical well solar key light Near cable 5;
5 groups of strain sensings of each monitoring section layer of (3-3) the second monitoring section layer L2 to the 8th monitoring section layer L8 Device is connected in series with optical cable, is introduced into protecting box, is formed another link, is then linked into main cable 5;5 groups of strain transducers It is together in series, is introduced into protecting box with cable, be then linked into leader cable 6;
Main cable 5 and leader cable 6 are connected to the automatic acquisition equipment and system of ground controlling terminal 7 by (3-4), are realized certainly Dynamic, acquisition in real time.After connecting obliquity sensor 1 and strain transducer, sensor signal is transferred on well by main cable Ground controlling terminal 7, last test personnel are according to automatic acquisition equipment and system, the obliquity sensor data of acquisition, by most Small square law fits the skew curve of entire pit shaft measuring section, can be realized and tests in wellhead ground.
The main cable 5 is 16 core optical cables, is able to satisfy the normal acquisition work of 100 strain transducers;Ground control is eventually The automatic acquisition equipment and a set of 15 optical passage signal processors of system configuration at end 7 are monitored on-line, are added up to logical using 12 3 channels are reserved in road.
Vital obliquity sensor 1 in the present invention, as shown in figure 3, including the first single shaft for being mutually perpendicular to place Sensing chip 10 and the second uniaxial sensing chip 20, such as the first uniaxial sensing chip 10 are placed vertically, the second uniaxial sensing core Piece 20 is horizontal positioned;First uniaxial sensing chip 10 is connected with the first caching amplifying circuit 30;Second uniaxial sensing chip 20 with Second caching amplifying circuit 40 is connected;First buffer circuit 30 is connected with the second buffer circuit 40 with single-chip microcontroller 50;Single-chip microcontroller 50 It is connected with signal conversion module 60.
The sensing element that obliquity sensor 1 is put into the first uniaxial sensing chip 10 and the second uniaxial sensing chip 20 will add Velocity amplitude is converted to two-way voltage signal, and voltage signal caches amplifying circuit 40 using the first caching amplifying circuit 30, second Impedance matching is carried out, signal quality is improved.Single-chip microcontroller 50 has A/D sampling channel, via the first caching amplifying circuit 30, second Inclination value is calculated after being sampled by the A/D sampling channel of single-chip microcontroller 50 in the signal that caching amplifying circuit 40 comes out, finally Signal is exported to the automatic acquisition equipment and system of ground controlling terminal 7 by main cable through signal conversion module 60.
As shown in figure 4, obliquity sensor 1 further includes power supply stabilization circuit 70 on the basis of Fig. 3 corresponding embodiment, Uniaxial sensing chip/20 of amplifying circuit 30, second, the second caching amplifying circuit are cached with the first uniaxial sensing chip 10, first 40, single-chip microcontroller 50, signal conversion module 60 are connected.For caching amplifying circuit 30, the to the first uniaxial sensing chip 10, first Two uniaxial sensing chips 20, second cache amplifying circuit 40 and provide 5 volts of voltages of high quality temperature-compensating, provide to single-chip microcontroller 3.3 volts of voltages and give signal conversion module provide 5 volts of voltages.
More specifically, as shown in figure 5,70 input voltage Vi n of power supply stabilization circuit exports 3.3 volts through MIC5202-33YM Voltage is single-chip microcontroller power supply, and power supply stabilization circuit input voltage vin exports 5 volts of voltages through MIC5202-50YM, is converted for signal Module 60 is powered.70 input voltage Vi n of power supply stabilization circuit is defeated after REF02AU carries out temperature-compensating after 5,430 5 volts of outputs Out 5 volts of voltages of high quality be the first uniaxial sensing chip 10, first cache the uniaxial sensing chip 20 of amplifying circuit 30, second, Second caching amplifying circuit 40 is powered.
As shown in Figure 6 and Figure 7, the first uniaxial sensing chip 10 and/or the second uniaxial sensing chip 20 are SCA103T_D04 Chip.First caching amplifying circuit 30 and/or the second caching amplifying circuit 40 are OP284.
As shown in Figure 6;When the first uniaxial sensing chip 10 is SCA103T_D04 chip, the first caching amplifying circuit 30 is When OP284, as shown in fig. 6, the SCA103T_D04 chip has 12 end feets.End feet 6, end feet 9, end feet 10 are grounded together, end feet 12 connect 5 volts of voltages, and end feet 11 connects the end feet 5 of the first caching amplifying circuit OP284 by resistance R1, and end feet 5 is connect by resistance R5 The end feet 3 of first caching amplifying circuit OP284.The end feet 3 and end feet 5 of first caching amplifying circuit pass through capacitor C4 and electricity respectively Hold C2 ground connection, end feet 4 is grounded, and end feet 8 connects 5 volts of voltages, and is grounded by capacitor C5;End feet 1,2 be shorted after by resistance R2 and Resistance R3 ground connection, the intermediate contact of resistance R2 and resistance R3 are connected to single-chip microcontroller, end feet 6, end feet 7 be shorted after by resistance R6 and electricity R8 ground connection is hindered, resistance R6 and resistance R8 intermediate contact are connected to single-chip microcontroller.
When the second uniaxial sensing chip is SCA103T_D04 chip, and the second caching amplifying circuit is OP284, such as Fig. 7 institute Show, which there are 12 end feets, and end feet 6, end feet 9, end feet 10 are grounded together, and end feet 12 connects 5 volts of electricity Pressure, and be grounded by capacitor C1, end feet 11 connects the end feet 3 of the second caching amplifying circuit OP284 by resistance R10, and end feet 5 passes through Resistance R15 connects the end feet 5 of the second caching amplifying circuit OP284.The end feet 3 and end feet 5 of second caching amplifying circuit OP284 is distinguished It is grounded by capacitor C10 and capacitor C11, end feet 4 is grounded, and end feet 8 connects 5 volts of voltages, and is grounded by capacitor C30, end feet 1, end Foot 2 is grounded after being shorted by resistance R11 and resistance R12, and resistance R11 and resistance R12 intermediate contact are connected to single-chip microcontroller, end feet 6, end Foot 7 is grounded after being shorted by resistance R16 and resistance R17, and resistance R16 and resistance R17 intermediate contact are connected to single-chip microcontroller.
Single-chip microcontroller is C8051F350 chip.As shown in figure 8, single-chip microcontroller has 32 end feets.The end feet 21 of single-chip microcontroller is connected to electricity 3.3 volts of voltage output ends of source voltage regulator circuit, end feet 21 after a capacitor C6 further through being grounded, and end feet 9, end feet 32 are grounded, end feet End feet 11, end feet 12 are sequentially connected to emulation downloader end feet 3, end feet 2 respectively, and the end feet 1 for emulating downloader is grounded, emulation downloading The end feet 2 of device connects 3.3 volts of voltage output ends of power supply stabilization circuit through resistance R14.The end feet 1 of single-chip microcontroller, end feet 2, end feet 7, End feet 8 meets output voltage YOut1, YOut2 of the first caching amplifying circuit and the output voltage of the second caching amplifying circuit respectively XOut1, XOut2, end feet 10 are connected in 3.3 volts of analog signal module for power supply, and end feet 19 connects the base stage of triode Q1, end feet 17, End feet 18 connects signal conversion module.End feet 15, the indirect resistance R13 of end feet 16 and a crystal oscillator Y1, the company of crystal oscillator Y1 and end feet 15 It connects end to be grounded by capacitor C12, crystal oscillator Y1 and the connecting pin of end feet 16 are grounded by capacitor C13.End feet 23 connects electricity through resistance R9 3.3 volts of voltage output ends of source voltage regulator circuit, end feet 28 are grounded through resistance R22, and end feet 31 is grounded through resistance R7, is connect through resistance R4 5 volts of voltage output ends of power supply stabilization circuit.
In the specific implementation, signal conversion module is 888 chip of HVD;As shown in figure 9, the end feet 1 of 888 chip of HVD, End feet 4 connects single-chip microcontroller, and end feet 2, end feet 3 are shorted 5 volts of voltage output ends that power supply stabilization circuit is connect through resistance R21, end feet 2, end The short circuit point of foot 3 while the emitter for being connected to triode Q1, the grounded collector of triode Q1;End feet 5 is grounded, and end feet 8 connects 5 volts Voltage, and be grounded through capacitor C16, end feet 6 meets signal output end A, and end feet 7 meets signal output end B;End feet 6 and end feet 7 are indirectly One two-way transient state inhibits pipe D3, and the point that two-way transient state inhibits pipe D3 to connect with end feet 7 connects a two-way transient state again and pipe D4 is inhibited to be followed by Ground, the point connecting resistance R24 that two-way transient state inhibits pipe D3 to connect with end feet 7 are grounded after connecting resistance R25 again, two-way transient state inhibition pipe D3 The point connecting with end feet 6 connects after a two-way transient state inhibits pipe D2 again and is grounded, and the point that two-way transient state inhibits pipe D3 to connect with end feet 6 connects Connecting resistance R18 is followed by 5 volts of voltage output ends of power supply stabilization circuit to resistance R19 again.
The obliquity sensor for the monitoring of coal mine shaft lining pit shaft deflection that the present invention uses, can be installed on shaft wall structure, The inclination angle of shaft structure spatially is measured, pit shaft can be measured along centerline direction angle change amount, by converting To the deviation data of shaft structure, measurement accuracy is high, and resolution ratio is 0.001 °, and 0.005 ° of gamut scope precision, temperature drift 0.001 °/DEG C, good environmental adaptability, degree of protection IP67 can run well under -30 DEG C~85 DEG C environment, be able to satisfy coal The requirement of mine shaft of vertical well deflection monitoring.In addition, in order to guarantee uniaxial inclination angle sensing chip work in optimum state, to its core Piece power supply carries out individually designed, to select temperature stability high accurate supply voltage.In order to be applicable in harsh environments, the product It takes highly dense seal structure design and guarantees sensor long-term stable operation.With good rain-proof, dust-proof and moisture proof, Smoke prevention Mist, mould proof ability.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or It changes among still in present patent application scope of protection of the claims.

Claims (10)

1. the shaft of vertical well deflection monitoring method based on obliquity sensor, which comprises the steps of:
(1) on the borehole wall, along 2~3 datum marks of basement rock location arrangements, in each datum mark mounted angle sensor, in case inspection It looks into;
(2) several measuring points are set along the borehole wall of main shaft axial direction, in each measuring point mounted angle sensor;Utilize measuring point The data comparison that the data and datum mark obliquity sensor that obliquity sensor measures measure, determines that the deflection of each measuring point is big It is small;And slot on the borehole wall of the obliquity sensor same level of measuring point, strain transducer is installed in slot, is passed according to strain The data of sensor acquisition measure shaft wall structure stress, and then calculate the deformation of pit shaft part;
(3) matched power supply and data transmission cable are installed for obliquity sensor and strain transducer, power supply and data is transmitted Cable is connected to ground, and connects automatic acquisition equipment and system, realizes automatic, acquisition in real time;Finally adopted according to obliquity sensor The data of collection fit the skew curve of entire pit shaft measuring section by least square method.
2. the shaft of vertical well deflection monitoring method according to claim 1 based on obliquity sensor, which is characterized in that in step Suddenly in (2):
(2-1) several monitoring section layers are axially arranged along main shaft, except the distance of well head to the first monitoring section layer L1 are The distance of 1m-20m, remaining each monitoring section interlayer are 40m-100m;
(2-2) arranges measuring point along the borehole wall of each monitoring section layer, and obliquity sensor (1) is fixedly mounted on the borehole wall at measuring point: 4 obliquity sensors (1) of installation are equally spaced on the borehole wall (4) of the first monitoring section layer L1;Remaining each monitoring section layer The borehole wall (4) on be also equally spaced 4 obliquity sensors (1) of installation, and slot on the borehole wall of same level, in slot 5 groups of strain transducers are installed;Strain transducer described in every group includes lateral fiber Bragg grating strain sensor (2) and longitudinal optical fiber light Grid strain transducer (3), and lateral fiber Bragg grating strain sensor (2) and longitudinal fiber Bragg grating strain sensor (3) are connected on Together.
3. the shaft of vertical well deflection monitoring method according to claim 2 based on obliquity sensor, which is characterized in that
In step (2-1), 8 monitoring section layers are arranged along the axial -10m~-460m of main shaft: -10m is that the first monitoring is disconnected Surface layer L1, -100m are that the second monitoring section layer L2, -160m is third monitoring section layer L3, and -240m is the 4th monitoring section layer It is the 7th monitoring section layer L7 that L4, -290m, which are the 6th monitoring section layer L6, -420m for the 5th monitoring section layer L5, -330m, - 460m is the 8th monitoring section layer L8;
In step (2-2), 4 obliquity sensors of installation are equally spaced on the borehole wall (4) of the first monitoring section layer L1 (2);4 inclination angles of installation are also equally spaced on the borehole wall (4) of the second monitoring section layer monitoring section layer of L2~the 8th L8 to pass Sensor (1), and equidistantly slot on the borehole wall of same level, 5 groups of strain transducers are installed in slot.
4. the shaft of vertical well deflection monitoring method according to claim 1 based on obliquity sensor, which is characterized in that in step Suddenly in (3):
(3-1) arrangement main cable (5) and leader cable (6): after obliquity sensor (1) and strain transducer are installed, from well head Main cable (5) and leader cable (6) are transferred, is fixed from top to bottom between manway;
4 obliquity sensors (1) of (3-2) the first monitoring section layer L1 to the 8th each monitoring section layer of monitoring section layer L8 are used Optical cable is connected in series, and is introduced into protecting box, forms a link, is then linked into main cable (5);4 obliquity sensors (1) are used Cable series connection gets up, and is introduced into protecting box, is then linked into leader cable (6);The protecting box is mounted on shaft of vertical well solar Near main cable (5);
5 groups of strain transducers of each monitoring section layer of (3-3) the second monitoring section layer L2 to the 8th monitoring section layer L8 are used Optical cable is connected in series, and is introduced into protecting box, forms another link, is then linked into main cable (5);5 groups of strain transducers are used Cable series connection gets up, and is introduced into protecting box, is then linked into leader cable (6);
Main cable (5) and leader cable (6) are connected to the automatic acquisition equipment and system of ground controlling terminal (7) by (3-4), are realized Automatically, acquire in real time.
5. the shaft of vertical well deflection monitoring method according to claim 4 based on obliquity sensor, which is characterized in that described Main cable (5) is 16 core optical cables;A set of 15 optical passage signals of the automatic acquisition equipment and system configuration of ground controlling terminal (7) Processor is monitored on-line.
6. -5 any shaft of vertical well deflection monitoring method based on obliquity sensor, feature exist according to claim 1 In the obliquity sensor (1) includes: the first uniaxial sensing chip (10) for being mutually perpendicular to place and the second uniaxial sensing chip (20);Described first uniaxial sensing chip (10) is connected with the first caching amplifying circuit (30);Described second uniaxial sensing chip (20) it is connected with the second caching amplifying circuit (40);First caching amplifying circuit (30) and the second caching amplifying circuit (40) It is connected with single-chip microcontroller (50);The single-chip microcontroller (50) is connected with signal conversion module (60).
7. the shaft of vertical well deflection monitoring method according to claim 6 based on obliquity sensor, which is characterized in that described Obliquity sensor (1) further includes power supply stabilization circuit (70), with the described first uniaxial sensing chip (10), the first caching amplification electricity Road (30), the second uniaxial sensing chip (20), the second caching amplifying circuit (40), single-chip microcontroller (50), signal conversion module (60) It is connected;The power supply stabilization circuit (70) be used for the described first uniaxial sensing chip (10), the first caching amplifying circuit (30), Second uniaxial sensing chip (20), the second caching amplifying circuit (40) provide 5 volts of voltages of high quality temperature-compensating, give the list Piece machine (50) provides 3.3 volts of voltages and provides 5 volts of voltages to the signal conversion module (60);The power supply stabilization circuit (70) Input voltage is through 3.3 volts and 5 volts of MIC5202-33YM, MIC5202-50YM output, the respectively described single-chip microcontroller (50) and signal Conversion module (60) power supply;After chip 5430 exports 5 volts after REF02AU carries out temperature-compensating 5 volts of outputting high quality electricity It presses and delays for the described first uniaxial sensing chip (10), the first caching amplifying circuit (30), the second uniaxial sensing chip (20), second Deposit amplifying circuit power supply (40).
8. the shaft of vertical well deflection monitoring method according to claim 7 based on obliquity sensor, which is characterized in that described First uniaxial sensing chip (10) and/or the second uniaxial sensing chip (20) are SCA103T_D04 chip;
End feet 6, end feet 9, the end feet 10 of described first uniaxial inclination angle sensing chip (10) are grounded together, and end feet 12 connects 5 volts of voltages, End feet 11 connects first caching amplifying circuit (30) by resistance R1, and end feet 5 connects first caching by resistance R5 and amplifies Circuit (30);
End feet 6, end feet 9, the end feet 10 of described second uniaxial inclination angle sensing chip (20) are grounded together, and end feet 12 connects 5 volts of voltages, And be grounded by capacitor C1, end feet 11 connects second caching amplifying circuit (40) by resistance R10, and end feet 5 passes through resistance R15 Connect second caching amplifying circuit (40).
9. the shaft of vertical well deflection monitoring method according to claim 8 based on obliquity sensor, which is characterized in that described First caching amplifying circuit (30) and/or second caching amplifying circuit (40) are OP284;
The end feet 3 and end feet 5 of first caching amplifying circuit (30) are grounded by capacitor C4 and capacitor C2 respectively, and end feet 4 connects Ground, end feet 8 connects 5 volts of voltages, and is grounded by capacitor C5;End feet 1, end feet 2 are grounded after being shorted by resistance R2 and resistance R3, electricity The intermediate contact of resistance R2 and resistance R3 is connected to the single-chip microcontroller, and end feet 6, end feet 7 are grounded after being shorted by resistance R6 and resistance R8, Resistance R6 and resistance R8 intermediate contact are connected to the single-chip microcontroller;
The end feet 3 and end feet 5 of second caching amplifying circuit (40) are grounded by capacitor C10 and capacitor C11 respectively, end feet 4 Ground connection, end feet 8 connects 5 volts of voltages, and is grounded by capacitor C30, and end feet 1, end feet 2 connect after being shorted by resistance R11 and resistance R12 Ground, resistance R11 and resistance R12 intermediate contact are connected to the single-chip microcontroller, end feet 6, end feet 7 be shorted after by resistance R16 and resistance R17 ground connection, resistance R16 and resistance R17 intermediate contact are connected to the single-chip microcontroller.
10. the shaft of vertical well deflection monitoring method according to claim 9 based on obliquity sensor, which is characterized in that institute Stating single-chip microcontroller (50) is C8051F350 chip;The end feet 21 of the single-chip microcontroller (50) is connected to 3.3 volts of voltages, end feet 21 further through Capacitor C6 ground connection, end feet 9, end feet 32 are grounded, and end feet 11, end feet 12 are sequentially connected to emulation downloader end feet 3, end feet 2 respectively, are imitated True downloader end feet 1 is grounded, and is emulated downloader end feet 2 through resistance R14 and is connect 3.3 volts of voltages;End feet 1, end feet 2, end feet 7 and end feet 8 be respectively the output voltage of first caching amplifying circuit (30), the second caching amplifying circuit (40), and end feet 10 connects 3.3 volts, End feet 19 connects the base stage of triode Q1, and end feet 17, end feet 18 connect the signal conversion module (60);End feet 15, end feet 16 are indirect Resistance R13 and crystal oscillator Y1, crystal oscillator Y1 and the connecting pin of end feet 15 are grounded by capacitor C12, the connecting pin of crystal oscillator Y1 and end feet 16 It is grounded by capacitor C13;End feet 23 connects 3.3 volts through resistance R9, and end feet 28 is grounded through resistance R22, and end feet 31 is grounded through resistance R7, 5 volts of voltages are connect through resistance R4;
The signal conversion module (60) is 888 chip of HVD;End feet 1, the end feet 4 of 888 chip of HVD connect the monolithic Machine (50), end feet 2, end feet 3, which are shorted, connects 5 volts of voltages through resistance R21, end feet 2, end feet 3 short circuit point be connected to triode Q1 simultaneously Emitter, the grounded collector of triode Q1;End feet 5 is grounded, and end feet 8 connects 5 volts of voltages, and is grounded through capacitor C16, end feet 6 Signal output end A is met, end feet 7 meets signal output end B;The indirect a pair of of end feet 6 and end feet 7 inhibits pipe D3, two-way wink to transient state The point that state inhibits pipe D3 to connect with end feet 7 connects after a two-way transient state inhibits pipe D4 again and is grounded, and two-way transient state inhibits pipe D3 and end feet 7 The point connecting resistance R24 of connection is grounded after connecting resistance R25 again, and it is two-way that the point that two-way transient state inhibits pipe D3 to connect with end feet 6 connects one again Transient state is grounded after inhibiting pipe D2, and connecting resistance R18 is followed by 5 volts to the point connecting resistance R19 that two-way transient state inhibits pipe D3 to connect with end feet 6 again Voltage.
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