CN209779713U - foundation pit engineering enclosure wall horizontal displacement monitoring device based on laser ranging technology - Google Patents
foundation pit engineering enclosure wall horizontal displacement monitoring device based on laser ranging technology Download PDFInfo
- Publication number
- CN209779713U CN209779713U CN201920106910.6U CN201920106910U CN209779713U CN 209779713 U CN209779713 U CN 209779713U CN 201920106910 U CN201920106910 U CN 201920106910U CN 209779713 U CN209779713 U CN 209779713U
- Authority
- CN
- China
- Prior art keywords
- laser
- horizontal displacement
- foundation pit
- measuring point
- enclosure wall
- 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.)
- Active
Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model relates to a foundation ditch engineering enclosure wall body horizontal displacement monitoring devices based on laser rangefinder technique. The utility model aims at providing a lower foundation ditch engineering enclosure wall body horizontal displacement monitoring devices based on laser rangefinder technique of simple operation, cost. The technical scheme of the utility model is that: the device comprises a laser range finder and a laser reflector which are arranged on two sides of a foundation pit, wherein the laser reflector is arranged at a measuring point position on one side wall of the foundation pit, and the laser range finder is arranged on the top of a retaining wall opposite to the laser reflector; the laser range finder comprises a laser emitter for emitting a light beam to a laser reflection sheet of a measuring point, a photoelectric element for receiving the laser beam reflected by the laser reflection sheet of the measuring point, a timer for measuring the time from the emission of the laser emitter to the reception of the photoelectric element, and a signal processing unit which is in circuit connection with the laser emitter, the photoelectric element and the timer. The utility model is suitable for a foundation ditch engineering enclosure wall body horizontal displacement field.
Description
Technical Field
The utility model relates to a foundation ditch engineering enclosure wall body horizontal displacement monitoring devices based on laser rangefinder technique. The method is suitable for the field of horizontal displacement of the enclosure wall body of the foundation pit engineering.
background
at present, the deformation characteristics of an enclosure structure can be well reflected by deep horizontal displacement observation, and the traditional test method is to embed an inclinometer in the enclosure pile wall in advance and use an inclinometer to test the horizontal displacement in the later period. If the deformation is too large, the inclinometer pipe is broken, the test cannot be carried out, and the deep horizontal displacement of the part is in a neutral position. At this time, the traditional inclination measuring technology cannot be continued, and a new sensing technology needs to be used for replacement.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: aiming at the problems, the device for monitoring the horizontal displacement of the foundation pit engineering enclosure wall based on the laser ranging technology is convenient to operate and low in cost.
The utility model adopts the technical proposal that: the utility model provides an enclosure wall horizontal displacement measuring device based on laser rangefinder technique which characterized in that: the device comprises a laser range finder and a laser reflector which are arranged on two sides of a foundation pit, wherein the laser reflector is arranged at a measuring point position on one side wall of the foundation pit, and the laser range finder is arranged on the top of a retaining wall opposite to the laser reflector;
The laser range finder comprises a laser emitter for emitting a light beam to a laser reflection sheet of a measuring point, a photoelectric element for receiving the laser beam reflected by the laser reflection sheet of the measuring point, a timer for measuring the time from the emission of the laser emitter to the reception of the photoelectric element, and a signal processing unit which is in circuit connection with the laser emitter, the photoelectric element and the timer.
The utility model has the advantages that: the utility model discloses well measuration non-contact, simple to operate, cost are lower, have changed the shortcoming that traditional deep horizontal displacement measurement method need spend a large amount of manpowers. The utility model discloses need not artifical measuration, easy operation is convenient, improves work efficiency. The utility model discloses simple structure, measurement accuracy height, can realize on-line monitoring.
Drawings
Fig. 1 is a schematic structural diagram of the embodiment.
Fig. 2 is a block diagram of a laser range finder in an embodiment.
FIG. 3 is a schematic diagram of a measurement principle according to an embodiment.
Detailed Description
As shown in fig. 1, the present embodiment is an enclosure wall horizontal displacement measuring device based on a laser ranging technology, and the enclosure wall horizontal displacement measuring device includes a laser range finder 1 and a laser reflector 2 respectively installed on two sides of a foundation pit, wherein the laser reflector 2 is installed at a measuring point position on a side wall of the foundation pit, and the laser range finder 1 is installed on a top of an enclosure wall opposite to the laser reflector 2.
As shown in fig. 2, the laser rangefinder 1 in this example includes a laser emitter 6 for emitting a beam toward the laser reflection sheet 2 at a measurement point, a photoelectric element 7 for receiving the laser beam reflected by the laser reflection sheet 2 at the measurement point, a timer 8 for measuring the time from the emission of the laser beam from the laser emitter 6 to the reception of the photoelectric element 7, and a signal processing unit 5 electrically connected to the laser emitter 6, the photoelectric element 7, and the timer 8.
The specific implementation steps of this embodiment are as follows:
Installing a laser range finder 1 at a reference point O, and arranging a laser emission sheet 2 at a position I where a measuring point is located;
The signal processing unit 5 controls the laser transmitter 6 to emit a light beam to the laser reflection sheet 2 at the position I of the measuring point during the working time, the photoelectric element 7 receives the laser beam reflected by the measuring point reflection sheet, the timer 8 measures the time from the emission to the reception of the laser beam, and the distance from the reference point O to the position I is calculated according to the time and the laser beam speed and serves as an initial value;
when the laser reflector 2 moves to a position II along with the measuring point, a laser rangefinder 1 is used for emitting a light beam to the reflector of the measuring point, a photoelectric element 7 is used for receiving the laser beam reflected by the reflector of the measuring point, a timer 8 is used for measuring the time from emission to reception of the laser beam, and the distance from a reference point O to the position II is calculated and used as a test value;
And comparing the test value of the distance between the two positions with the initial value of the distance between the two positions, and calculating the horizontal displacement of the measuring point.
Horizontal displacement calculation principle in this example: in the embodiment, the laser range finder 1 emits a light beam on the reflector plate, the photoelectric element 7 receives the laser beam reflected by the measuring point reflector plate, and the timer 8 obtains the time from emission to reception of the laser beam and the change of the time, so that the distance from a reference point to a measuring point and the change of the distance are measured. According to the trigonometric function relationship, when the length of one square edge of the right-angled triangle is far greater than that of the other square edge, the long square edge can be considered as a hypotenuse. The distance change of the laser ranging test is obtained as the horizontal displacement of the test point relative to the reference point.
and setting XY as a plane coordinate system where the reference point and the measuring point group are located, wherein the coordinate of the reference point O is (0,0), the distance between the measuring point I and the reference point O is l1, and the distance between the measuring point II and the reference point O is l 2. The coordinate of the test point I is (X, Y), the coordinate of the test point II is (X + delta X, Y + delta Y), and according to the geometrical relationship, the horizontal displacement change value delta X between the test point II and the test point I can be obtained by the following formula: Δ X ═ l2-l 1.
Fig. 3 is a schematic view illustrating the measurement of the horizontal displacement of the wall by the horizontal displacement measurement method of the present embodiment. The laser range finder 1 is arranged at the top of the enclosure wall at one side of the foundation pit, and the laser reflectors 2 are arranged at the side wall at the other side of the foundation pit at equal intervals. After the foundation pit enclosure wall body deforms, the initial foundation pit outline 3 deforms to the deformed foundation pit outline 4, the laser reflector 2 displaces, and the measuring device of the embodiment is adopted to measure the distance between the test point and the reference point in the wall, so that the horizontal displacement of the wall body is obtained.
Claims (1)
1. The utility model provides a foundation ditch engineering enclosure wall body horizontal displacement monitoring devices based on laser rangefinder technique which characterized in that: the device comprises a laser range finder (1) and a laser reflection sheet (2) which are arranged on two sides of a foundation pit, wherein the laser reflection sheet (2) is arranged at a measuring point position on one side wall of the foundation pit, and the laser range finder (1) is arranged on the top of a surrounding wall opposite to the laser reflection sheet (2);
The laser range finder (1) comprises a laser emitter (6) for emitting a light beam to a laser reflection sheet (2) of a measuring point, a photoelectric element (7) for receiving the laser beam reflected by the laser reflection sheet (2) of the measuring point, a timer (8) for measuring the time from the emission of the laser beam from the laser emitter (6) to the reception of the photoelectric element (7), and a signal processing unit (5) which is in circuit connection with the laser emitter (6), the photoelectric element (7) and the timer (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920106910.6U CN209779713U (en) | 2019-01-22 | 2019-01-22 | foundation pit engineering enclosure wall horizontal displacement monitoring device based on laser ranging technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920106910.6U CN209779713U (en) | 2019-01-22 | 2019-01-22 | foundation pit engineering enclosure wall horizontal displacement monitoring device based on laser ranging technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209779713U true CN209779713U (en) | 2019-12-13 |
Family
ID=68793300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920106910.6U Active CN209779713U (en) | 2019-01-22 | 2019-01-22 | foundation pit engineering enclosure wall horizontal displacement monitoring device based on laser ranging technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209779713U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113532333A (en) * | 2021-07-30 | 2021-10-22 | 中交第二航务工程局有限公司 | Automatic open caisson sinking verticality monitoring device and using method |
| CN113847872A (en) * | 2020-06-28 | 2021-12-28 | 中铁上海工程局集团有限公司 | Discrete single-point displacement static monitoring device and method based on laser ranging |
-
2019
- 2019-01-22 CN CN201920106910.6U patent/CN209779713U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113847872A (en) * | 2020-06-28 | 2021-12-28 | 中铁上海工程局集团有限公司 | Discrete single-point displacement static monitoring device and method based on laser ranging |
| CN113847872B (en) * | 2020-06-28 | 2024-07-26 | 中铁上海工程局集团有限公司 | Discrete single-point displacement static monitoring device and method based on laser ranging |
| CN113532333A (en) * | 2021-07-30 | 2021-10-22 | 中交第二航务工程局有限公司 | Automatic open caisson sinking verticality monitoring device and using method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102175887B (en) | Mobile ultrasonic anemometer and method for measuring wind speed and direction | |
| CN101672913B (en) | Laser three-point dynamic positioning method and system | |
| CN104180759B (en) | Reservoir dam depression and horizontal displacement Trigger jitter detection device and detection method | |
| CN209779713U (en) | foundation pit engineering enclosure wall horizontal displacement monitoring device based on laser ranging technology | |
| CN204439032U (en) | A kind of contactless automatic measurement deflection of bridge span device | |
| CN108957470A (en) | Flight time distance measuring sensor and its distance measuring method | |
| CN102535556A (en) | Excavator, and system and method for improving dynamic response characteristics of excavator | |
| CN102011765A (en) | Hydraulic cylinder with laser-measured piston rod stroke | |
| CN114111583B (en) | Mining crack monitoring device and method based on laser ranging | |
| CN105251823A (en) | Automatic control system and method for vertical hydraulic cold steel pipe machine | |
| CN110596715B (en) | Intelligent waterline identification system and positioning method | |
| CN110095768A (en) | One kind being convenient for Costs in Metro Construction indoor laser rangefinder | |
| CN201993466U (en) | Indoor ultrasonic distance measuring meter | |
| CN104048609B (en) | Non-contact type rock body three-dimensional space displacement monitoring method | |
| CN204007536U (en) | Reservoir dam depression and horizontal shift reference point pick-up unit | |
| CN206989894U (en) | Two-dimensional coordinate measuring system | |
| CN110439232B (en) | Wall trowel and trowel working method | |
| CN113406653A (en) | Mining intrinsic safety type laser ranging device | |
| CN118223540A (en) | Device and method for monitoring deformation of building based on millimeter wave radar technology | |
| CN110206075B (en) | Device for monitoring horizontal displacement of top of deep foundation pit supporting structure and application method | |
| CN103759816A (en) | Automatic measuring and positioning device for site light environment | |
| CN105862945A (en) | Intelligent monitoring and regulating system and method for differential settlement of building structure | |
| CN215906736U (en) | Foundation pit support horizontal deformation monitoring device | |
| CN208206054U (en) | A kind of large scale gauge for checking linearity with coordinate information | |
| CN205712232U (en) | Building structure differential settlement intelligent monitoring regulation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230926 Address after: Room 609 and 610, North building, Huadong Hospital, 22 Chaowang Road, Hangzhou, Zhejiang 310014 Patentee after: Zhejiang Huadong mapping and Engineering Safety Technology Co.,Ltd. Patentee after: POWERCHINA HUADONG ENGINEERING Corp.,Ltd. Address before: 35th floor, building 1, 199 Gaojiao Road, Xianlin street, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG HUADONG ENGINEERING SAFETY TECHNOLOGY CO.,LTD. Patentee before: POWERCHINA HUADONG ENGINEERING Corp.,Ltd. |