[go: up one dir, main page]

CN105401883A - Pile hole intelligent expanding method - Google Patents

Pile hole intelligent expanding method Download PDF

Info

Publication number
CN105401883A
CN105401883A CN201510984496.5A CN201510984496A CN105401883A CN 105401883 A CN105401883 A CN 105401883A CN 201510984496 A CN201510984496 A CN 201510984496A CN 105401883 A CN105401883 A CN 105401883A
Authority
CN
China
Prior art keywords
wing
expanding
control system
diameter
hydraulic control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510984496.5A
Other languages
Chinese (zh)
Inventor
吴超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Quzhou Yifan Design Co Ltd
Original Assignee
Quzhou Yifan Design Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Quzhou Yifan Design Co Ltd filed Critical Quzhou Yifan Design Co Ltd
Publication of CN105401883A publication Critical patent/CN105401883A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/28Enlarging drilled holes, e.g. by counterboring
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/26Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • E21B10/322Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools cutter shifted by fluid pressure
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B44/00Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/005Below-ground automatic control systems
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • E21B47/08Measuring diameters or related dimensions at the borehole
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • E21B47/12Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geophysics (AREA)
  • Mechanical Engineering (AREA)
  • Remote Sensing (AREA)
  • Earth Drilling (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

The invention discloses a pile hole intelligent expanding method through an intelligent double-expanding-blade reaming pile machine drill bit. The drill bit comprises a base body, a soil cutting head, a first externally-expandable blade component, a second externally-expandable blade component, a hydraulic control system and a caliper measuring control system. A caliper on the base body is used for detecting the diameter of a pile hole in real time, the diameter is compared with a datum diameter value and an allowed diameter error range, the datum diameter value and the allowed diameter error range are stored in a data processing module in advance, and if the difference between the measured value and the datum diameter value exceeds the allowed diameter error range, the diameter of the pile hole cut and drilled by the expanding blades is adjusted in time through the hydraulic control system; meanwhile, due to the double expanding blades, once one expanding blade fails, expanding and drilling can be continued, more fault maintenance space can be provided, and the drill bit can be conveniently pulled out to be maintained.

Description

A kind of method that stake holes intelligence is expanding
The present invention is the divisional application of patent of invention " a kind of stake holes intelligence diameter enlarging method ", and the applying date of original application is on May 14th, 2014, and the application number of original application is 2014102023173, and the invention and created name of original application is " a kind of stake holes intelligence diameter enlarging method ".
Technical field
The present invention relates to pile foundation construction, be specifically related to adopt the two wing reaming hole stake machine drill head that expands of a kind of intelligence to carry out stake holes intelligence diameter enlarging method.
Background technology
In pile foundation construction, expanding stake holes is general, and it needs in work progress according to pile, carries out expanding in the needs degree of depth.
Prior art CN203049572U and CN203035091U discloses a kind of hole-enlargement pile machine drill head, it can both obtain the diameter stake holes of needs, but above-mentionedly both just singly expand wing, there is no the expanding wing that rotation is for subsequent use, once inefficacy of breaking down, expanding wing is difficult to repair, and drill bit is also difficult to take out stake holes; Meanwhile, the expanding size of expanding wing can not accurately be estimated, expanding size places one's entire reliance upon the extend sizes of wing in advance, and be difficult to accurately change according to stake holes real-time condition, stake holes is expanding does not often reach requirement, occurs super expansion or deficient expansion situation.
At present, in the installation expanding field of drill bit, when also not appearing at expanding wing fault, consider hole enlargement tool reparation, also not about the expanding size that accurately can control expanding wing in real time, for the defect of prior art, the invention provides a kind of two wing reaming hole stake machine drill head that expands of intelligence that utilizes and carry out stake holes intelligence diameter enlarging method.
Summary of the invention
For solving the defect existed in prior art, an object of the present invention is to provide one can when expanding wing breaks down, can creep into for the reparation of fault wing provides the expanding wing of replacement to cut, another object is the expanding size that in real time, automatically can regulate expanding wing simultaneously, realizes real-time automatic diameter-enlarging cutting drilling stake holes.
For overcoming existing defect, realize above-mentioned purpose, the technical solution used in the present invention is:
A kind of stake holes intelligence diameter enlarging method, it is characterized in that: adopt the two wing reaming hole stake machine drill head that expands of a kind of intelligence to carry out pile hole construction, this machine drill head comprises matrix, cut native head, first can extend out wing assembly, second can extend out wing assembly, hydraulic control system, calibrate control system, it is characterized in that: described first can extend out wing assembly comprises crank wing, crank wing is provided with hemisphere tooth near matrix one end, crank wing the other end is provided with bores pick cutter, be hinged on the mounting blocks on matrix in the middle part of crank wing rotationally, hemisphere tooth engages with the tooth bar arranged in the base, tooth bar upper end is fixedly connected with the piston rod of the piston be arranged in the first cylinder body, first cylinder body is arranged in the base, and carry out hydraulic-driven by hydraulic control system and control, described second can extend out wing assembly comprises flexible wing, and flexible wing is driven by the second cylinder body and stretches out and indentation, and described second cylinder body is arranged in the first half one cavity of mounting blocks, and carries out hydraulic-driven by hydraulic control system and control, described flexible wing has than described crank wing and extends out radius more greatly, hydraulic control system and the controller calibrated in control system communicate to connect, described in calibrate control system and comprise controller, caliper and communication system, described caliper is arranged in the cavity on matrix outer wall, for measuring the current diameter of stake holes, and measured data is sent to controller,
Described controller comprises signal receiving module, data processing module and signal emission module, the real time data that described signal receiving module is measured for receiving caliper, data processing module processes to the measured data received, if the difference of measured value and datum diameter value is beyond the diameter error scope of allowing, the signal emission module of controller will transmit signals to hydraulic control system, and the hydraulic-driven being adjusted the first cylinder body and the second cylinder body by hydraulic control system is expanding;
The step adopting this machine drill head to carry out automatic diameter-enlarging is as follows:
1) stake machine drill head is positioned at the pile hole construction position designed;
2) drill bit is driven to creep into;
3) in drilling process, by caliper Real-Time Monitoring stake holes diameter, and measured data is uploaded to controller, measured value and the datum diameter value prestored compare by controller, if difference exceeds allowable diameter error range, controller will with hydraulic control system communication, and then adjustment the first cylinder body and the hydraulic-driven of the second cylinder body expanding to carry out;
4) in drill bit drilling process, when first can extend out wing component malfunctions, the second cylinder hydraulic is adjusted by hydraulic control system, flexible wing strengthens expanding creeping into, stop crank wing expanding operation, for first can extend out the reparation of wing assembly and provide the expanding space of larger stake holes or be beneficial to first and can extend out wing assembly and propose stake holes and place under repair;
5), after pile hole construction reaches expanding requirement, when fulfiling assignment, draw flexible wing and crank wing in by hydraulic control system in time, stop expanding, normally creep into.
Described controller comprises signal receiving module, data processing module and signal emission module, the real time data that described signal receiving module is measured for receiving caliper, data processing module processes to the measured data received, if the difference of measured value and datum diameter value is beyond the diameter error scope of allowing, the signal emission module of controller will transmit signals to hydraulic control system, and the hydraulic-driven being adjusted the first cylinder body and the second cylinder body by hydraulic control system is expanding.
Described communication system is wireless or wire communication.
Described caliper is mechanical type caliper measurement probe or the acoustic probes with ultrasonic transmitter and receiver.
Described bit is apex point or bores pick cutter.
Advantageous Effects: two expansion wing can when an expanding wing breaks down, can continue expandingly to creep into, provide more multiple faults service clearance and be convenient to extract drill bit and place under repair; First can extend out wing assembly adopts tooth engagement system to drive expansion wing radius, and drive steadily, efficiency is reliable; Calibrate to regulate expanding wing to cut in real time in real time and creep into diameter, efficient, accurate.
Accompanying drawing explanation
Fig. 1: stake machine drill header structure figure;
Fig. 2: controller composition structure chart.
1-matrix, 2-cuts native head, 3-crank wing, 4-tooth bar, 5-hemisphere tooth, 6-piston, 7-first cylinder body, 8-caliper, 9-controller, 10-hydraulic control system, and 11-stretches wing, 12-mounting blocks, 13-second cylinder body.
Detailed description of the invention
For further describing the present invention, below in conjunction with accompanying drawing, the embodiment of the present invention is described in detail.
A kind of stake holes intelligence diameter enlarging method, adopts that a kind of intelligence is two expands wing reaming hole stake machine drill head, comprises matrix 1, cuts soil 2, first and can extend out wing assembly, second and can extend out wing assembly, hydraulic control system 10, calibrate control system.
Described first can extend out wing assembly comprises crank wing 3, crank wing 3 is provided with hemisphere tooth 5 near matrix 1 one end, crank wing 3 the other end is provided with bores pick cutter, be hinged on the mounting blocks 12 on matrix 1 in the middle part of crank wing 3 rotationally, hemisphere tooth 5 engages with the tooth bar 4 be arranged in matrix 1, tooth bar 4 upper end is fixedly connected with the piston rod of the piston 6 be arranged in the first cylinder body 7, and the first cylinder body 7 is arranged in matrix 1, and carries out hydraulic-driven by hydraulic control system 10 and control.
Described second can extend out wing assembly comprises flexible wing 11, and flexible wing 11 is driven by the second cylinder body 13 and stretches out and indentation, and described second cylinder body 13 is arranged in the first half one cavity of mounting blocks 12, and carries out hydraulic-driven by hydraulic control system 10 and control.
Described flexible wing 11 has than described crank wing 3 and extends out radius more greatly, can conveniently obtain larger diameter stake holes in pile hole construction, more importantly when first can extend out wing component malfunctions or when can not reach larger diameter pile hole construction, drive second can extend out wing assembly by hydraulic control system 10 and carry out reaming hole; Simultaneously, when first can extend out wing component malfunctions can not carry out operation time, second can extend out wing assembly can continue to carry out expanding operation with identical or larger diameter, be beneficial to first and can extend out wing assembly to produce more spaces in stake holes and carry out fault restoration, be also beneficial to whole fault drill bit and propose stake holes and place under repair.
Described first cylinder body 7 and the second cylinder body 13 carry out hydraulic-driven control by hydraulic control system 10, hydraulic control system 10 and the controller 9 calibrated in control system communicate to connect, described control system of calibrating comprises controller 9, caliper 8 and communication system, and described communication system can be that radio communication also can arrange communication cable and carries out wire communication, described caliper 8 is arranged in the cavity on matrix 1 outer wall, and for measuring the current diameter of stake holes, this caliper 8 can be mechanical type caliper measurement probe or the acoustic probes with ultrasonic transmitter and receiver, described controller 9 comprises signal receiving module, data processing module and signal emission module, the real time data that described signal receiving module is measured for receiving caliper 8, and the data received are sent to data processing module, data processing module processes to the measured data received, and by with the datum diameter value be stored in advance in data processing module, allowable diameter error range compares, if the difference of measured value and datum diameter value is beyond the diameter error scope of allowing, the signal emission module of controller 9 will transmit signals to hydraulic control system 10, to be adjusted the hydraulic-driven ability of the first cylinder body 7 and the second cylinder body 13 by hydraulic control system 10, and then adjustment crank wing 3 and/or flexible wing 11 extend out radius of clean-up, make a machine drill head automatically extend out cutting to creep into, reach the pile foundation hole of expection diameter.
The step adopting above-mentioned stake machine drill head to carry out automatic diameter-enlarging is as follows:
1) stake machine drill head is positioned at the pile hole construction position designed;
2) drill bit is driven to creep into;
3) in drilling process, by caliper Real-Time Monitoring stake holes diameter, and measured data is uploaded to controller, measured value and the datum diameter value prestored compare by controller, if difference exceeds allowable diameter error range, controller will with hydraulic control system communication, and then adjustment the first cylinder body and the hydraulic-driven of the second cylinder body expanding to carry out;
4) in drill bit drilling process, when first can extend out wing component malfunctions, the second cylinder hydraulic is adjusted by hydraulic control system, flexible wing strengthens expanding creeping into, stop crank wing expanding operation, for first can extend out the reparation of wing assembly and provide the expanding space of larger stake holes or be beneficial to first and can extend out wing assembly and propose stake holes and place under repair;
5), after pile hole construction reaches expanding requirement, when fulfiling assignment, draw flexible wing and crank wing in by hydraulic control system in time, stop expanding, normally creep into.

Claims (4)

1. the method that a stake holes intelligence is expanding, it is characterized in that: feature adopts the two wing reaming hole stake machine drill head that expands of a kind of intelligence to carry out pile hole construction, this machine drill head comprises matrix, cut native head, first can extend out wing assembly, second can extend out wing assembly, hydraulic control system, calibrate control system, it is characterized in that: described first can extend out wing assembly comprises crank wing, crank wing is provided with hemisphere tooth near matrix one end, crank wing the other end is provided with bores pick cutter, be hinged on the mounting blocks on matrix in the middle part of crank wing rotationally, hemisphere tooth engages with the tooth bar arranged in the base, tooth bar upper end is fixedly connected with the piston rod of the piston be arranged in the first cylinder body, first cylinder body is arranged in the base, and carry out hydraulic-driven by hydraulic control system and control, described second can extend out wing assembly comprises flexible wing, and flexible wing is driven by the second cylinder body and stretches out and indentation, and described second cylinder body is arranged in the first half one cavity of mounting blocks, and carries out hydraulic-driven by hydraulic control system and control, described flexible wing has than described crank wing and extends out radius more greatly, hydraulic control system and the controller calibrated in control system communicate to connect, described in calibrate control system and comprise controller, caliper and communication system, described caliper is arranged in the cavity on matrix outer wall, for measuring the current diameter of stake holes, and measured data is sent to controller, described controller comprises signal receiving module, data processing module and signal emission module, the real time data that described signal receiving module is measured for receiving caliper, data processing module processes to the measured data received, if the difference of measured value and datum diameter value is beyond the diameter error scope of allowing, the signal emission module of controller will transmit signals to hydraulic control system, and the hydraulic-driven being adjusted the first cylinder body and the second cylinder body by hydraulic control system is expanding,
The step adopting this machine drill head to carry out automatic diameter-enlarging is as follows:
1) stake machine drill head is positioned at the pile hole construction position designed;
2) drill bit is driven to creep into;
3) in drilling process, by caliper Real-Time Monitoring stake holes diameter, and measured data is uploaded to controller, measured value and the datum diameter value prestored compare by controller, if difference exceeds allowable diameter error range, controller will with hydraulic control system communication, and then adjustment the first cylinder body and the hydraulic-driven of the second cylinder body expanding to carry out;
4) in drill bit drilling process, when first can extend out wing component malfunctions, the second cylinder hydraulic is adjusted by hydraulic control system, flexible wing strengthens expanding creeping into, stop crank wing expanding operation, for first can extend out the reparation of wing assembly and provide the expanding space of larger stake holes or be beneficial to first and can extend out wing assembly and propose stake holes and place under repair;
5), after pile hole construction reaches expanding requirement, when fulfiling assignment, draw flexible wing and crank wing in by hydraulic control system in time, stop expanding, normally creep into.
2. the method that stake holes intelligence as claimed in claim 1 is expanding, is characterized in that: described communication system is wireless or wire communication.
3. the method that stake holes intelligence as claimed in claim 1 or 2 is expanding, is characterized in that: described caliper is mechanical type caliper measurement probe or the acoustic probes with ultrasonic transmitter and receiver.
4. the method that stake holes intelligence as claimed in claim 2 is expanding, is characterized in that: described in cut native head be apex point or bore pick cutter.
CN201510984496.5A 2014-05-14 2014-05-14 Pile hole intelligent expanding method Pending CN105401883A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410202317.3A CN103924927B (en) 2014-05-14 2014-05-14 A kind of stake holes intelligence diameter enlarging method

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201410202317.3A Division CN103924927B (en) 2014-05-14 2014-05-14 A kind of stake holes intelligence diameter enlarging method

Publications (1)

Publication Number Publication Date
CN105401883A true CN105401883A (en) 2016-03-16

Family

ID=51143293

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201410202317.3A Active CN103924927B (en) 2014-05-14 2014-05-14 A kind of stake holes intelligence diameter enlarging method
CN201510984496.5A Pending CN105401883A (en) 2014-05-14 2014-05-14 Pile hole intelligent expanding method

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN201410202317.3A Active CN103924927B (en) 2014-05-14 2014-05-14 A kind of stake holes intelligence diameter enlarging method

Country Status (1)

Country Link
CN (2) CN103924927B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104179185B (en) * 2014-07-31 2016-08-24 浙江水利水电学院 A kind of soil nailing expander and diameter enlarging method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2170530A (en) * 1985-02-06 1986-08-06 Cementation Piling & Found Improvements relating to reamers
CN2611572Y (en) * 2003-03-21 2004-04-14 袁啟法 Combined rock drill
CN201106404Y (en) * 2007-10-10 2008-08-27 中国石油天然气集团公司 Reaming machine special for casing tube welldrilling
CN202108431U (en) * 2011-04-26 2012-01-11 王庆伟 Pile-forming drilling tool for screw squeezed cast-in-place pile
CN103032030A (en) * 2013-01-15 2013-04-10 江苏汤辰机械装备制造有限公司 Drill bit of pile machine
CN103097655A (en) * 2010-03-16 2013-05-08 钻杆接头产品有限公司 System and method for measuring borehole conditions, in particular, verification of a final borehole diameter
US20140110171A1 (en) * 2012-10-22 2014-04-24 Halliburton Energy Services, Inc. Downhole tool and control module

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1709055A1 (en) * 1988-12-05 1992-01-30 Khripkov Aleksandr Blasthole reamer
WO1994002687A1 (en) * 1992-07-24 1994-02-03 Wagstaff Piling Pty. Ltd. Apparatus and method for forming piles
US7506703B2 (en) * 2006-01-18 2009-03-24 Smith International, Inc. Drilling and hole enlargement device
CN101644136B (en) * 2008-08-06 2012-09-05 中国石油天然气集团公司 Combination of reaming stabilizer and bottom drilling device
CN102654024B (en) * 2012-03-13 2014-10-01 中国海洋石油总公司 Hydraulic chambering device for drilling
CN103291222B (en) * 2013-05-13 2015-04-29 山东鸿泰建设集团有限公司 Reamer bit for building long-screw pile machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2170530A (en) * 1985-02-06 1986-08-06 Cementation Piling & Found Improvements relating to reamers
CN2611572Y (en) * 2003-03-21 2004-04-14 袁啟法 Combined rock drill
CN201106404Y (en) * 2007-10-10 2008-08-27 中国石油天然气集团公司 Reaming machine special for casing tube welldrilling
CN103097655A (en) * 2010-03-16 2013-05-08 钻杆接头产品有限公司 System and method for measuring borehole conditions, in particular, verification of a final borehole diameter
CN202108431U (en) * 2011-04-26 2012-01-11 王庆伟 Pile-forming drilling tool for screw squeezed cast-in-place pile
US20140110171A1 (en) * 2012-10-22 2014-04-24 Halliburton Energy Services, Inc. Downhole tool and control module
CN103032030A (en) * 2013-01-15 2013-04-10 江苏汤辰机械装备制造有限公司 Drill bit of pile machine

Also Published As

Publication number Publication date
CN103924927B (en) 2016-02-10
CN103924927A (en) 2014-07-16

Similar Documents

Publication Publication Date Title
CN103924929B (en) A kind of intelligence is two expands wing reaming hole stake machine drill head
CN110984958A (en) Small-size drilling engineering monitored control system
CN107991113B (en) An integrated test bench for drilling, fracturing and cutting and testing method
US20100214121A1 (en) Synchronized telemetry from a rotating element
CN203867467U (en) Intelligent reaming pile machine drill provided with two reaming blades
CN110186780B (en) High-precision drilling shearing test device and method
NO344562B1 (en) Communication between systems at the earth's surface and down a wellbore during tripping
US20220366772A1 (en) Arrangement apparatus for multiple integrated sensors in deep position of sliding mass and arrangement method
CN104237484A (en) Mechanical rock-breaking experiment device and method
CN113137985B (en) Equipment and method for laying multi-integrated sensors in deep part of landslide
CN117191601B (en) Hole wall spinning shearing device for in-situ drilling shearing test and test method
CN103924927B (en) A kind of stake holes intelligence diameter enlarging method
CN107024396A (en) A kind of rock field shear test strength testing device and method
CN114370263A (en) Method for measuring physical and mechanical parameters and stress state of coal and rock mass in underground coal mine while drilling
KR20160038200A (en) remote management wystem of excavator
CN204229221U (en) Drill jumbo drilling system test platform
AU2014310273B2 (en) Integrated inspection and maintenance raise boring method and an associated drill string arrangement
CN201448104U (en) Anti-lifting and anti-blocking hydraulic system in driller
CN109487774B (en) Pre-drilling type lateral pressure test drilling equipment and hole forming method thereof
US20190093436A1 (en) Drilling with a whipstock system
CN102162357B (en) An in-situ test method for the existing stress on shaft wall
CN113529706A (en) Anchor cable construction method for intelligently detecting hole expanding aperture
CN113585961B (en) Automatic piling and bottom expanding method and system based on visualization technology
CN216718003U (en) Novel cross plate shearing instrument
US11697991B2 (en) Rig sensor testing and calibration

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20160316

WD01 Invention patent application deemed withdrawn after publication