CN114383558B - Spacing monitoring device and method for shield vertical stacking segment construction - Google Patents
Spacing monitoring device and method for shield vertical stacking segment construction Download PDFInfo
- Publication number
- CN114383558B CN114383558B CN202210050361.1A CN202210050361A CN114383558B CN 114383558 B CN114383558 B CN 114383558B CN 202210050361 A CN202210050361 A CN 202210050361A CN 114383558 B CN114383558 B CN 114383558B
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- assembly
- end measuring
- measuring assembly
- marker post
- total station
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- 238000010276 construction Methods 0.000 title claims abstract description 24
- 238000012806 monitoring device Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000003550 marker Substances 0.000 claims abstract description 58
- 238000012544 monitoring process Methods 0.000 claims abstract description 19
- 238000000691 measurement method Methods 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/16—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance of clearance between spaced objects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
Abstract
The invention discloses a distance monitoring device and a distance monitoring method for shield vertical stacking segment construction. The beneficial effects of the invention are as follows: the leveling instrument is arranged to ensure that the total station of the external end measuring assembly and the hole end measuring assembly can be horizontally arranged, and the marker post assembly can be vertically arranged, so that the accuracy of monitoring data can be ensured; be provided with rotation adjustment mechanism, settle the leveling promptly and measure the back of subassembly, the total powerstation on the entrance to a cave end measuring assembly can be aimed at the target subassembly by monitoring personnel rotation to the total powerstation on the accessible rotation peripheral hardware end measuring assembly aims at and also can carry out pivoted auxiliary target, and convenient operation uses, drives driven gear dish rotation with through screwing in adjust knob, and then realizes rotating regulation to total powerstation and auxiliary target.
Description
Technical Field
The invention relates to a distance monitoring device, in particular to a distance monitoring device and a distance monitoring method for shield vertical stacking segment construction, and belongs to the technical field of tunnel shield construction.
Background
The shield construction is a construction process widely applied in the tunnel excavation process, surrounding soil mass is easy to extrude or loosen due to stratum excavation in the construction process, stratum loss is easy to cause, and the problem of surface deformation is caused.
In order to ensure the safety of the excavated tunnels, the distance between the vertical overlapping sections of the two tunnels needs to be measured, the conventional measurement mode often uses a design diagram to determine the distance between the vertical overlapping sections of the two tunnels, but in the actual construction process, a device capable of accurately monitoring is lacking, and then certain potential safety hazards can be brought to the later stage of construction.
Disclosure of Invention
The invention aims to solve the problem and provide a distance monitoring device and a distance monitoring method for shield vertical stacking segment construction.
The invention realizes the above purpose through the following technical scheme: a distance monitoring device for shield vertical stacking segment construction comprises
The external end measuring assembly is arranged at a far position of an excavated tunnel, is fixedly arranged on the ground, and consists of a tripod for supporting the assembly and a total station for measuring, wherein the total station is fixedly arranged on a base through a rotation adjusting mechanism, and the base is fixedly arranged on the tripod through a screw;
the tunnel portal end measuring assembly is arranged at the tunnel portal of the excavated tunnel and fixedly arranged on the ground at the tunnel portal position, and consists of a tripod for supporting the assembly, a total station for measuring and an auxiliary marker post, wherein the total station and the auxiliary marker post are respectively and fixedly arranged on a base through a rotation adjusting mechanism, and the base is fixedly arranged on the tripod through screws;
the marker post assembly is vertically fixedly installed in an excavated tunnel and positioned at the vertical falling position of the two tunnels, and consists of a long and straight vertical rod and an inserting rod connected below the vertical rod and used for being inserted into the ground.
As still further aspects of the invention: and the base and the vertical rods are provided with a level meter.
As still further aspects of the invention: and a horizontal limiting plate is fixedly connected between the vertical rod and the inserting rod.
As still further aspects of the invention: the upper ends of the marker post assembly and the auxiliary marker post are respectively provided with a monitoring point position, and the monitoring point positions on the auxiliary marker post and the measuring position of the total station on the hole end measuring assembly are positioned on the same horizontal line.
As still further aspects of the invention: the total station on the external end measuring assembly and the auxiliary standard pole are rotatably connected through the rotation adjusting mechanism.
As still further aspects of the invention: the rotation adjusting mechanism is composed of an outer sleeve fixedly mounted on the upper surface of the base and a driven gear disc arranged in the base and used for connecting the total station with the bottom end of the auxiliary marker post, the driven gear disc is rotationally connected with the bottom surface of the outer sleeve through a rotation bearing, the side wall of the outer sleeve penetrates through an adjusting knob which is rotationally arranged, and one end of the adjusting knob, which is located in the outer sleeve, is fixedly connected with a driving conical gear which is in meshing connection with the driven gear disc.
A distance monitoring device for shield vertical stacking segment construction comprises the following steps:
firstly, respectively inserting a marker post assembly at the vertical falling position of two excavated tunnels according to a construction drawing, placing a hole end measuring assembly at the hole of the two excavated tunnels, placing an external end measuring assembly at a position far from the hole, ensuring the horizontal arrangement of the external end measuring assembly and the hole end measuring assembly through a level meter, and ensuring the vertical insertion of the marker post assembly;
firstly, rotating an auxiliary standard pole of one of the hole end measuring assemblies to monitor a vertical distance a1 by the total station of the peripheral end measuring assembly, and then aligning the total station of the hole end measuring assembly to a standard pole assembly in the tunnel to monitor a vertical distance a2;
thirdly, rotating the total station of the external end measuring assembly to aim at an auxiliary marker post of another hole end measuring assembly to monitor a vertical distance b1, and aiming the total station of the hole end measuring assembly at a marker post assembly in the tunnel to monitor a vertical distance b2;
and fourthly, calculating a1+a2 which is the vertical distance value between the vertical overlapping part of one tunnel and the external end measuring assembly, and b1+b2 which is the vertical distance value between the vertical overlapping part of the other tunnel and the external end measuring assembly, and subtracting the two values to monitor and calculate the construction distance between the vertical overlapping sections of the two tunnels.
The beneficial effects of the invention are as follows:
1. the leveling instrument is arranged to ensure that the total station of the external end measuring assembly and the hole end measuring assembly can be horizontally arranged, and the marker post assembly can be vertically arranged, so that the accuracy of monitoring data can be ensured;
2. the upper ends of the marker post assembly and the auxiliary marker post are respectively provided with a monitoring point, the monitoring point on the auxiliary marker post and the measuring part of the total station on the hole end measuring assembly are positioned on the same horizontal line, so that the total station can accurately find the measuring point, and meanwhile, the total station on the external end measuring assembly can monitor the auxiliary marker post to realize the monitoring of the horizontal height of the total station on the hole end measuring assembly;
3. be provided with rotation adjustment mechanism, settle the leveling promptly and measure the back of subassembly, the total powerstation on the entrance to a cave end measuring assembly can be aimed at the target subassembly by monitoring personnel rotation to the total powerstation on the accessible rotation peripheral hardware end measuring assembly aims at and also can carry out pivoted auxiliary target, and convenient operation uses, drives driven gear dish rotation with through screwing in adjust knob, and then realizes rotating regulation to total powerstation and auxiliary target.
Drawings
FIG. 1 is a schematic diagram of the overall layout structure of the present invention;
FIG. 2 is a schematic illustration of a pole assembly of the present invention;
FIG. 3 is a schematic diagram of a peripheral end measurement assembly according to the present invention;
FIG. 4 is a schematic view of the structure of the hole end measuring assembly of the present invention;
FIG. 5 is a schematic view of a rotation adjustment mechanism according to the present invention;
fig. 6 is a schematic diagram showing measurement calculation according to the present invention.
In the figure: 1. an external end measuring component, 2, a hole end measuring component, 3, a marker post component, 4, a triangular bracket, 5, a base, 6, a level, 7, a total station, 8, an auxiliary marker post, 9 and a rotation adjusting mechanism, 10, a vertical rod, 11, an inserting rod, 12, a limiting plate, 13, an outer sleeve, 14, a rotating bearing, 15, a driven gear disc, 16, an adjusting knob, 17 and a driving conical gear.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to FIGS. 1-6, a distance monitoring device for shield vertical stacking segment construction comprises
The external end measuring assembly 1 is arranged at a far position of an excavated tunnel, is fixedly arranged on the ground, and consists of a tripod 4 for supporting the assembly and a total station 7 for measuring, wherein the total station 7 is fixedly arranged on a base 5 through a rotation adjusting mechanism 9, and the base 5 is fixedly arranged on the tripod 4 through screws;
the tunnel portal end measuring assembly 2 is arranged at the tunnel portal of an excavated tunnel and fixedly placed on the ground at the position of the tunnel portal, and consists of a tripod 4 for supporting the assembly, a total station 7 and an auxiliary marker post 8 for measuring, wherein the total station 7 and the auxiliary marker post 8 are fixedly installed on a base 5 through a rotation adjusting mechanism 9 respectively, and the base 5 is fixedly installed on the tripod 4 through screws;
the marker post assembly 3 is vertically and fixedly arranged in an excavated tunnel and is positioned at the vertical falling position of the two tunnels, and is composed of a long and straight vertical rod 10 and an inserting rod 11 connected below the vertical rod 10 and used for being inserted into the ground.
In the embodiment of the invention, the base 5 and the vertical rod 10 are both provided with the level gauge 6, so that the total station 7 of the external end measuring assembly 1 and the hole end measuring assembly 2 can be horizontally arranged, and the marker post assembly 3 can be vertically arranged, thereby ensuring the accuracy of monitoring data.
In the embodiment of the invention, a horizontal limiting plate 12 is fixedly connected between the vertical rod 10 and the inserting rod 11, so that the limiting plate 12 is tightly attached to the ground when the marker post assembly 3 is inserted, and the mounting height of the two marker post assemblies 3 is ensured to be constant.
In the embodiment of the invention, the upper ends of the marker post assembly 3 and the auxiliary marker post 8 are respectively provided with a monitoring point, and the monitoring point on the auxiliary marker post 8 and the measuring part of the total station 7 on the hole end measuring assembly 2 are positioned on the same horizontal line, so that the total station 7 can accurately find the measuring point, and meanwhile, the total station 7 on the external end measuring assembly 1 can monitor the auxiliary marker post 8 to monitor the horizontal height of the total station 7 on the hole end measuring assembly 2.
Example two
Referring to FIGS. 1-6, a distance monitoring device for shield vertical stacking segment construction comprises
The external end measuring assembly 1 is arranged at a far position of an excavated tunnel, is fixedly arranged on the ground, and consists of a tripod 4 for supporting the assembly and a total station 7 for measuring, wherein the total station 7 is fixedly arranged on a base 5 through a rotation adjusting mechanism 9, and the base 5 is fixedly arranged on the tripod 4 through screws;
the tunnel portal end measuring assembly 2 is arranged at the tunnel portal of an excavated tunnel and fixedly placed on the ground at the position of the tunnel portal, and consists of a tripod 4 for supporting the assembly, a total station 7 and an auxiliary marker post 8 for measuring, wherein the total station 7 and the auxiliary marker post 8 are fixedly installed on a base 5 through a rotation adjusting mechanism 9 respectively, and the base 5 is fixedly installed on the tripod 4 through screws;
the marker post assembly 3 is vertically and fixedly arranged in an excavated tunnel and is positioned at the vertical falling position of the two tunnels, and is composed of a long and straight vertical rod 10 and an inserting rod 11 connected below the vertical rod 10 and used for being inserted into the ground.
In the embodiment of the invention, the total station 7 on the external end measuring assembly 1 and the total station 7 and the auxiliary standard pole 8 on the opening end measuring assembly 2 are rotatably connected through the rotation adjusting mechanism 9, namely after the leveling measuring assembly is arranged, the monitoring personnel can rotate the total station 7 on the opening end measuring assembly 2 to align with the standard pole assembly 3, and the total station 7 on the external end measuring assembly 1 can rotate to align with the auxiliary standard pole 8 which can rotate in the same way, so that the operation and the use are convenient.
In the embodiment of the invention, the rotation adjusting mechanism 9 is composed of an outer sleeve 13 fixedly installed on the upper surface of the base 5 and a driven gear disc 15 arranged in the base 5 and used for connecting the total station 7 and the bottom end of the auxiliary marker post 8, the driven gear disc 15 is in rotation connection with the bottom surface of the outer sleeve 13 through a rotation bearing 14, an adjusting knob 16 which is rotatably arranged is penetrated through the side wall of the outer sleeve 13, and one end of the adjusting knob 16, which is positioned in the outer sleeve 13, is fixedly connected with a driving bevel gear 17 which is in meshing connection with the driven gear disc 15, so that the driven gear disc 15 is driven to rotate by screwing the adjusting knob 16, and further the total station 7 and the auxiliary marker post 8 are rotatably adjusted.
Example III
Referring to fig. 1 to 6, a distance monitoring device for shield vertical stacking segment construction, the measuring method comprises the following steps:
firstly, respectively inserting a marker post assembly 3 at the vertical falling position of two excavated tunnels according to a construction drawing, placing a hole end measuring assembly 2 at the hole of the two excavated tunnels, placing an external end measuring assembly 1 at a position far from the hole, ensuring the external end measuring assembly 1 and the hole end measuring assembly 2 to be horizontally arranged through a level gauge 6, and ensuring the marker post assembly 3 to be vertically inserted;
step two, firstly, rotating an auxiliary marker post 8 of which the total station 7 of the external end measuring assembly 1 is aligned with one of the hole end measuring assemblies 2 to monitor a vertical distance a1, and then aligning the total station 7 of the hole end measuring assembly 2 with the marker post assembly 3 in the tunnel to monitor a vertical distance a2;
step three, the total station 7 of the external end measuring assembly 1 is rotated to be aligned with the auxiliary marker post 8 of the other hole end measuring assembly 2 to monitor the vertical distance b1, and then the total station 7 of the hole end measuring assembly 2 is aligned with the marker post assembly 3 in the tunnel to monitor the vertical distance b2;
and fourthly, calculating, namely a1+a2 is the vertical distance value between the vertical overlapping part of one tunnel and the peripheral end measuring assembly 1, b1+b2 is the vertical distance value between the vertical overlapping part of the other tunnel and the peripheral end measuring assembly 1, and subtracting the two values, so that the construction distance between the vertical overlapping sections of the two tunnels can be monitored and calculated.
Working principle: firstly, aiming at an auxiliary marker post 8 of one hole end measuring assembly 2 by a total station 7 of an external end measuring assembly 1 to monitor a vertical distance a1, and aiming at a marker post assembly 3 in the tunnel by the total station 7 of the hole end measuring assembly 2 to monitor a vertical distance a2; then the total station 7 of the external end measuring assembly 1 is aligned with the auxiliary marker post 8 of the other hole end measuring assembly 2 to monitor the vertical distance b1, and then the total station 7 of the hole end measuring assembly 2 is aligned with the marker post assembly 3 in the tunnel to monitor the vertical distance b2; through calculation, a1+a2 is the vertical distance value between the vertical overlapping part of one tunnel and the peripheral end measuring assembly 1, b1+b2 is the vertical distance value between the vertical overlapping part of the other tunnel and the peripheral end measuring assembly 1, and the two values are subtracted, so that the construction distance between the vertical overlapping sections of the two tunnels can be monitored and calculated.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (6)
1. A measuring method of a distance monitoring device for shield vertical stacking segment construction is characterized by comprising the following steps:
the interval monitoring device comprises:
the external end measuring assembly (1) is arranged at a far position of an excavated tunnel and fixedly placed on the ground, the external end measuring assembly consists of a tripod (4) for supporting the assembly and a total station (7) for measuring, the total station (7) is fixedly arranged on a base (5) through a rotation adjusting mechanism (9), and the base (5) is fixedly arranged on the tripod (4) through a screw;
the tunnel portal end measuring assembly (2) is arranged at the tunnel portal of the excavated tunnel and fixedly placed on the ground at the position of the tunnel portal, and consists of a tripod (4) for supporting the assembly, a total station (7) for measuring and an auxiliary marker post (8), wherein the total station (7) and the auxiliary marker post (8) are fixedly installed on a base (5) through a rotation adjusting mechanism (9) respectively, and the base (5) is fixedly installed on the tripod (4) through screws;
the marker post assembly (3) is vertically and fixedly arranged in the excavated tunnel, is positioned at the vertical falling parts of the two tunnels, and consists of a long and straight vertical rod (10) and an inserting rod (11) connected below the vertical rod (10) and used for being inserted into the ground;
the measuring method comprises the following steps:
firstly, respectively inserting a marker post assembly (3) at the vertical falling position of two excavated tunnels according to a construction drawing, placing a hole end measuring assembly (2) at the hole of the two excavated tunnels, placing an external end measuring assembly (1) at a position far from the hole, ensuring the external end measuring assembly (1) and the hole end measuring assembly (2) to be horizontally arranged through a level gauge (6), and ensuring the marker post assembly (3) to be vertically inserted;
step two, firstly, rotating a total station (7) of an external end measuring assembly (1) to aim at an auxiliary marker post (8) of one hole end measuring assembly (2) to monitor a vertical distance a1, and then aiming the total station (7) of the hole end measuring assembly (2) at a marker post assembly (3) in the tunnel to monitor the vertical distance a2;
thirdly, the total station (7) of the external end measuring assembly (1) is rotated to be aligned with an auxiliary marker post (8) of the other hole end measuring assembly (2) to monitor the vertical distance b1, and then the total station (7) of the hole end measuring assembly (2) is aligned with the marker post assembly (3) in the tunnel to monitor the vertical distance b2;
and fourthly, calculating a1+a2 which is the vertical distance value between the vertical overlapping part of one tunnel and the external end measuring assembly (1), and b1+b2 which is the vertical distance value between the vertical overlapping part of the other tunnel and the external end measuring assembly (1), and subtracting the two values to monitor and calculate the construction distance of the vertical overlapping sections of the two tunnels.
2. The measurement method of a pitch monitoring device according to claim 1, wherein: and the base (5) and the vertical rod (10) are provided with a level meter (6).
3. The measurement method of a pitch monitoring device according to claim 1, wherein: a horizontal limiting plate (12) is fixedly connected between the vertical rod (10) and the inserting rod (11).
4. A method of measuring a pitch monitoring device according to claim 3, wherein: the upper ends of the marker post assembly (3) and the auxiliary marker post (8) are respectively provided with a monitoring point position, and the monitoring point positions on the auxiliary marker post (8) and the measuring position of the total station (7) on the hole end measuring assembly (2) are positioned on the same horizontal line.
5. A method of measuring a pitch monitoring device according to claim 3, wherein: the total station (7) on the external end measuring assembly (1) and the total station (7) and the auxiliary marker post (8) on the hole end measuring assembly (2) are rotatably connected through the rotation adjusting mechanism (9).
6. A method of measuring a pitch monitoring device according to claim 3, wherein: the automatic control device is characterized in that the rotation adjusting mechanism (9) is composed of an outer sleeve (13) fixedly mounted on the upper surface of the base (5) and a driven gear disc (15) arranged in the base (5) and used for connecting the total station (7) and the bottom end of the auxiliary marker post (8), the driven gear disc (15) is rotationally connected with the bottom surface of the outer sleeve (13) through a rotation bearing (14), an adjusting knob (16) which is rotationally arranged is penetrated through the side wall of the outer sleeve (13), and one end of the adjusting knob (16) in the outer sleeve (13) is fixedly connected with a driving conical gear (17) which is in meshing connection with the driven gear disc (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210050361.1A CN114383558B (en) | 2022-01-17 | 2022-01-17 | Spacing monitoring device and method for shield vertical stacking segment construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210050361.1A CN114383558B (en) | 2022-01-17 | 2022-01-17 | Spacing monitoring device and method for shield vertical stacking segment construction |
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| Publication Number | Publication Date |
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| CN114383558A CN114383558A (en) | 2022-04-22 |
| CN114383558B true CN114383558B (en) | 2023-10-27 |
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| CN202210050361.1A Active CN114383558B (en) | 2022-01-17 | 2022-01-17 | Spacing monitoring device and method for shield vertical stacking segment construction |
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| EP0770847A2 (en) * | 1995-10-27 | 1997-05-02 | Forschungszentrum Jülich Gmbh | Method and device for measuring the distance between a gauge and a measuring surface |
| FR2998662A1 (en) * | 2012-11-23 | 2014-05-30 | Airbus Operations Sas | DEVICE FOR DEFORMATION MEASUREMENT AND IMPLANTATION OF SUCH A DEVICE IN AN ELEMENT |
| CN104541129A (en) * | 2012-08-08 | 2015-04-22 | 赫克斯冈技术中心 | Inclination sensor |
| CN104564128A (en) * | 2014-12-10 | 2015-04-29 | 中铁二十局集团有限公司 | Deformation monitoring method for shallow-buried excavation tunnel construction |
| CN108444423A (en) * | 2018-03-11 | 2018-08-24 | 宁海县交通集团有限公司 | A kind of full displacement measurement method of tunnel surrounding of Xia Chuan highways |
| CN210771117U (en) * | 2019-09-27 | 2020-06-16 | 威海市三维工程测绘有限公司 | Surveying instrument positioner for surveying and mapping engineering |
| CN111307127A (en) * | 2020-03-26 | 2020-06-19 | 金陵科技学院 | Building displacement monitoring device |
| CN111720172A (en) * | 2020-06-30 | 2020-09-29 | 山东华联矿业股份有限公司 | Tunnel central line retesting instrument |
| CN212082370U (en) * | 2020-04-18 | 2020-12-04 | 江苏博智工程咨询有限公司 | Marker post for engineering |
-
2022
- 2022-01-17 CN CN202210050361.1A patent/CN114383558B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0770847A2 (en) * | 1995-10-27 | 1997-05-02 | Forschungszentrum Jülich Gmbh | Method and device for measuring the distance between a gauge and a measuring surface |
| CN104541129A (en) * | 2012-08-08 | 2015-04-22 | 赫克斯冈技术中心 | Inclination sensor |
| FR2998662A1 (en) * | 2012-11-23 | 2014-05-30 | Airbus Operations Sas | DEVICE FOR DEFORMATION MEASUREMENT AND IMPLANTATION OF SUCH A DEVICE IN AN ELEMENT |
| CN104564128A (en) * | 2014-12-10 | 2015-04-29 | 中铁二十局集团有限公司 | Deformation monitoring method for shallow-buried excavation tunnel construction |
| CN108444423A (en) * | 2018-03-11 | 2018-08-24 | 宁海县交通集团有限公司 | A kind of full displacement measurement method of tunnel surrounding of Xia Chuan highways |
| CN210771117U (en) * | 2019-09-27 | 2020-06-16 | 威海市三维工程测绘有限公司 | Surveying instrument positioner for surveying and mapping engineering |
| CN111307127A (en) * | 2020-03-26 | 2020-06-19 | 金陵科技学院 | Building displacement monitoring device |
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| CN111720172A (en) * | 2020-06-30 | 2020-09-29 | 山东华联矿业股份有限公司 | Tunnel central line retesting instrument |
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