CN211446863U - Automatic monitoring device for deep horizontal displacement of soil body - Google Patents
Automatic monitoring device for deep horizontal displacement of soil body Download PDFInfo
- Publication number
- CN211446863U CN211446863U CN201922143930.3U CN201922143930U CN211446863U CN 211446863 U CN211446863 U CN 211446863U CN 201922143930 U CN201922143930 U CN 201922143930U CN 211446863 U CN211446863 U CN 211446863U
- Authority
- CN
- China
- Prior art keywords
- monitoring device
- shell
- automatic monitoring
- deep
- deformation measuring
- 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
- 239000002689 soil Substances 0.000 title claims abstract description 40
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 37
- 238000012806 monitoring device Methods 0.000 title claims abstract description 34
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 238000004891 communication Methods 0.000 claims abstract description 29
- 238000009434 installation Methods 0.000 claims abstract description 16
- 238000012544 monitoring process Methods 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 8
- 239000011888 foil Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Testing Or Calibration Of Command Recording Devices (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model relates to the technical field of displacement detection equipment, and discloses an automatic monitoring device for the horizontal displacement of the deep part of a soil body, which comprises a shell with an accommodating cavity, a first stop part, a second stop part positioned below the first stop part, and a connecting piece; an opening communicated with the accommodating cavity is formed in the shell, a sealing plug used for sealing the opening is arranged in the opening, a deformation measuring element is arranged on the inner wall of the accommodating cavity, and a communication cable of the deformation measuring element penetrates through the sealing plug to be in communication connection with external monitoring equipment; an installation space is formed between the first stop part and the second stop part, the shell is installed in the installation space, and the first stop part and the second stop part are connected through a connecting piece. Deformation data detected by the deformation measuring element are transmitted to external communication equipment in real time through a communication cable, so that deformation data of a soil body can be monitored in real time, the automation degree is high, in addition, the labor cost is low, the reliability is high, and continuous monitoring can be realized.
Description
Technical Field
The utility model relates to a displacement detection equipment's technical field especially relates to a deep horizontal displacement's of soil automatic monitoring device.
Background
The horizontal displacement of the deep part of the soil body is an important parameter of safety in projects such as foundation pits, buildings, roads, side slopes and bridges, and therefore the monitoring of the horizontal displacement of the deep part of the soil body has important significance. The automation degree of the traditional inclinometer measuring mode is low, and real-time pre-alarming is difficult to realize.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a deep horizontal displacement's of soil automatic monitoring device to the degree of automation that solves the traditional inclinometer measuring mode that exists among the prior art is low and be difficult to realize real-time early warning technical problem.
In order to achieve the above object, the present invention provides an automatic monitoring device for soil deep horizontal displacement, comprising a housing having an accommodating cavity, a first stop member, a second stop member located below the first stop member, and a connecting member; an opening communicated with the accommodating cavity is formed in the shell, a sealing plug used for sealing the opening is arranged in the opening, a deformation measuring element is arranged on the inner wall of the accommodating cavity, and a communication cable of the deformation measuring element penetrates through the sealing plug to be in communication connection with external monitoring equipment; an installation space is formed between the first stop part and the second stop part, the shell is installed in the installation space, and the first stop part is connected with the second stop part through the connecting piece.
Furthermore, the shell is a cylindrical tube, the accommodating cavity is a hollow cavity of the cylindrical tube, and the deformation measuring element is arranged on the inner wall of the cylindrical tube.
Furthermore, the number of the openings is two, the number of the sealing plugs is two, the two openings are respectively arranged at two ends of the cylindrical tube, and the two openings and the two sealing plugs are in one-to-one correspondence.
Further, the deformation measuring elements are multiple in number and are distributed around the circumferential direction of the shell.
Further, the deformation measuring element is a strain gauge extending in the axial direction of the housing.
Furthermore, a groove is formed in the inner wall of the shell, and the strain gauge is arranged in the groove.
Further, the housing extends in a vertical direction.
Further, the end of the communication cable is provided with a joint, and a sealing shell covers the outside of the joint.
Further, the bottom of the second stop piece is provided with a downward conical piece.
Further, the connecting piece is a steel bar, and the first stop piece and the second stop piece are respectively steel mesh sheets.
The utility model provides an automatic monitoring device of soil body deep horizontal displacement's beneficial effect lies in: compared with the prior art, the automatic monitoring device for the horizontal displacement of the deep part of the soil body has the advantages that the deformation measuring element is arranged on the inner wall of the shell, when the shell is embedded in the soil body, the shell can be driven to deform when the soil body deforms, and the deformation of the shell can be detected through the deformation measuring element; the second stop piece is positioned below the first stop piece, an installation space is formed between the first stop piece and the second stop piece, the connecting piece is connected with the first stop piece and the second stop piece, the shell is installed in the installation space and can be supported on the second stop piece, the connecting piece, the first stop piece and the second stop piece can protect the shell in the installation space, and the connecting piece ensures the stability of the relative position between the first stop piece and the second stop piece; deformation data detected by the deformation measuring element are transmitted to external communication equipment in real time through a communication cable, so that deformation data of a soil body can be monitored in real time, the automation degree is high, in addition, the labor cost is low, the reliability is high, and continuous monitoring can be realized.
Drawings
Fig. 1 is a schematic front view of an automatic monitoring device for horizontal displacement in a deep portion of a soil body provided in an embodiment of the present invention;
fig. 2 is an assembly schematic view of a deformation measuring element installed in a housing according to an embodiment of the present invention;
FIG. 3 is a schematic view of the cross-sectional structure A-A of FIG. 2;
fig. 4 is a schematic view illustrating a connection between two adjacent housings according to an embodiment of the present invention;
fig. 5 is a schematic connection diagram of the first stop member and the connecting member according to an embodiment of the present invention.
In the figure, 1, a housing; 11. an accommodating cavity; 12. an opening; 13. a groove; 21. a first stopper; 22. a second stopper; 23. a connecting member; 24. an installation space; 3. a sealing plug; 41. a deformation measuring element; 42. a communication cable; 421. a joint; 43. sealing the shell; 5. a conical member; 61. a measurement circuit.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 to 5, an automatic monitoring device for horizontal displacement in deep soil according to the present invention will now be described. The automatic monitoring device for the deep horizontal displacement of the soil body comprises a shell 1 with an accommodating cavity 11, a first stop part 21, a second stop part 22 positioned below the first stop part 21, and a connecting part 23; an opening 12 communicated with the accommodating cavity 11 is formed in the shell 1, a sealing plug 3 used for sealing the opening 12 is arranged in the opening 12, a deformation measuring element 41 is arranged on the inner wall of the accommodating cavity 11, and a communication cable 42 of the deformation measuring element 41 penetrates through the sealing plug 3 to be in communication connection with external monitoring equipment (not shown); an installation space 24 is formed between the first stopper 21 and the second stopper 22, the housing 1 is installed in the installation space 24, and the first stopper 21 and the second stopper 22 are connected by a connecting piece 23.
Thus, the deformation measuring element 41 is arranged on the inner wall of the shell 1, when the shell 1 is buried in the soil, the deformation of the soil can drive the shell 1 to deform, and the deformation of the shell 1 can be detected by the deformation measuring element 41; the second stop member 22 is positioned below the first stop member 21, an installation space 24 is formed between the first stop member 21 and the second stop member 22, the connecting member 23 connects the first stop member 21 and the second stop member 22, the housing 1 is installed in the installation space 24, the housing 1 can be supported on the second stop member 22, the connecting member 23, the first stop member 21 and the second stop member 22 can protect the housing 1 positioned in the installation space 24, and the connecting member 23 ensures the stability of the relative position between the first stop member 21 and the second stop member 22; deformation data detected by the deformation measuring element 41 are transmitted to external communication equipment in real time through the communication cable 42, so that the deformation data of the soil body can be monitored in real time, the automation degree is high, in addition, the labor cost is low, the reliability is high, and continuous monitoring can be realized.
Optionally, the subject name of the present application may be changed from "an automatic monitoring device for soil depth horizontal displacement" to: a "displacement monitoring system".
Specifically, in one embodiment, after the sealing plug 3 seals the opening 12, the accommodating chamber 11 is a sealed chamber, so as to prevent external moisture/dust from affecting the deformation measuring element 41 in the accommodating chamber 11.
Specifically, in one embodiment, the sealing plug 3 is provided with a through hole, and the communication cable 42 passes through the through hole to be connected with the external monitoring device.
Further, please refer to fig. 1 to 5, as a specific embodiment of the automatic monitoring device for horizontal displacement in deep portion of soil body provided by the present invention, the housing 1 is a cylindrical tube, the accommodating cavity 11 is a hollow cavity of the cylindrical tube, and the deformation measuring element 41 is disposed on the inner wall of the cylindrical tube. So, the cylinder pipe is convenient for produce, and the cylinder pipe is put into the soil body more easily.
Further, please refer to fig. 1 to 5, as a specific embodiment of the automatic monitoring device for horizontal displacement in deep soil, the number of the openings 12 is two, the number of the sealing plugs 3 is two, the two openings 12 are respectively disposed at two ends of the cylindrical tube, and the two openings 12 and the two sealing plugs 3 are in one-to-one correspondence. In this way, the communication cable 42 can be extended through any one of the sealing plugs 3, facilitating signal output/transmission of the deformation measuring element 41.
Further, please refer to fig. 1 to 5, as a specific embodiment of the automatic monitoring device for horizontal displacement in deep soil, the number of the deformation measuring elements 41 is plural, and the plural deformation measuring elements 41 are arranged around the circumference of the casing 1. In this manner, the plurality of deformation measuring elements 41 can detect the deformation of the housing 1 more reliably; the plurality of deformation measuring elements 41 are arranged around the circumference of the housing 1, and the plurality of deformation measuring elements 41 can deform from the housing 1 in a plurality of directions.
Further, referring to fig. 1 to 5, as a specific embodiment of the automatic monitoring device for soil deep horizontal displacement provided by the present invention, the deformation measuring element 41 is a strain gauge extending along the axial direction of the casing 1. In this way, the strain gauge is more sensitive to bending of the axis of the housing 1. In particular, in one embodiment, the strain gauge is a resistive strain gauge or an optical strain gauge.
Further, please refer to fig. 1 to 5, as a specific embodiment of the automatic monitoring device for horizontal displacement in deep portion of soil body provided by the present invention, a groove 13 is disposed on the inner wall of the casing 1, and the strain gauge is disposed in the groove 13. So, the foil gage setting is more firm in recess 13, and contacts inseparabler between the cell wall of foil gage and recess 13, and the deformation influence foil gage that the casing 1 of being convenient for takes place.
Specifically, in one embodiment, the strain gage is attached to the circuit board.
Further, please refer to fig. 1 to 5, as a specific embodiment of the automatic monitoring device for horizontal displacement in deep portion of soil body provided by the present invention, the housing 1 extends in a vertical direction. Thus, the casing 1 can sense the deformation in the horizontal direction more easily, that is, the casing 1 can detect the deformation of the soil body in the horizontal direction more sharply.
Further, please refer to fig. 1 to 5, as a specific embodiment of the automatic monitoring device for horizontal displacement in deep soil, according to the present invention, a connector 421 is disposed at an end of the communication cable 42, and a sealing shell 43 is covered outside the connector 421. In this way, the sealing case 43 can protect the joint 421 from water ingress/damage.
Further, referring to fig. 1 to 5, as a specific embodiment of the automatic monitoring device for soil deep horizontal displacement provided by the present invention, a downward conical member 5 is disposed at the bottom of the second stop member 22. In this way, the cone 5 facilitates drilling into the soil.
Further, please refer to fig. 1 to 5, as a specific embodiment of the automatic monitoring device for horizontal displacement in deep portion of soil body provided by the present invention, the connecting member 23 is a steel bar, and the first stop member 21 and the second stop member 22 are steel mesh sheets respectively. Therefore, the steel bar has low cost and is convenient to connect; the steel mesh is very firm and easy to process.
Optionally, in one embodiment, the number of the reinforcing bars is three, and the three reinforcing bars are parallel and vertically arranged in an equilateral triangle. Specifically, in one embodiment, the distance from the center to each side of the equilateral triangle is equal to the outer diameter of the housing 1 (cylindrical tube). Specifically, in one embodiment, the length of the longitudinal rebar (vertically disposed rebar) is greater than the length of the housing 1. The length of the communication cable 42 between adjacent housings 1 plus the length of the housing 1 is greater than the length of the longitudinal rebar.
Optionally, in one embodiment, the steel bar is welded with a connecting structure (the connecting structure may be in a nut shape), and the steel mesh is fixedly connected with the connecting structure through a bolt; the diameter of the holes of the steel mesh sheet is larger than the communication cable 42 and smaller than the diameter of the shell 1 (cylindrical tube shape), so that the communication cable 42 can pass through the steel mesh sheet, and the shell 1 cannot pass through the steel mesh sheet.
The utility model also provides an automatic monitoring device construction method of soil body deep horizontal displacement, including following step:
s1: manufacturing a plurality of detection units; the manufacturing process of each detection unit comprises the following steps:
preparing a housing 1 with a containing cavity 11 and a sealing plug 3; an opening 12 communicated with the accommodating cavity 11 is formed in the shell 1, a deformation measuring element 41 is arranged on the inner wall of the accommodating cavity 11, a communication cable of the deformation measuring element 41 penetrates through the sealing plug 3, and the sealing plug 3 is plugged into the opening 12 to seal the opening 12;
preparing a plurality of longitudinal reinforcing bars (connecting pieces 23 in fig. 1), a first stopper 21, and a second stopper 22 below the first stopper 21; after the shell 1 is welded on each steel bar, respectively connecting the first stop piece 21 and the second stop piece 22 on each steel bar, respectively, wherein an installation space 24 for installing the shell 1 is formed between the first stop piece 21 and the second stop piece 22; and a plurality of steel bars are enclosed outside the shell 1;
s2: respectively and correspondingly welding the reinforcing steel bars of two adjacent detection units;
s3: the communication cables 42 of the adjacent two detection units are connected by a joint 421, and a sealing case 43 is provided outside the joint 421.
S4: repeating S1-S3 until the casing 1 of the lowest detection unit reaches the bottom of the drill hole;
s5: the communication cable 42 of the uppermost monitoring unit is connected to an external monitoring device for real-time monitoring.
Thus, in [ 1 ], the cable with the joint 421 of the communication cable 42 at both ends is embedded in the sealing plug 3, the deformation measuring element 41 is disposed in the groove 13 on the inner wall of the accommodating cavity 11, the deformation measuring element 41 is fixed at the tube wall of the housing 1 (cylindrical tube), and the deformation measuring element 41 is connected with the measuring circuit 61 (for collecting/processing the signal of the deformation measuring element 41) through a wire. The deformation measuring element 41 is respectively connected with the communication cables 42 at the two ends of the shell 1 (cylindrical pipe shape) through an uplink waterproof interface and a downlink waterproof interface, and the two ends of the shell 1 (cylindrical pipe shape) (the two ends of the shell 1 are both provided with an opening 12, and each opening 12 is internally provided with a sealing plug 3) are sealed by a sealing plug 3; 【2】 After the connecting structure is welded on the longitudinal steel bars, the longitudinal steel bars are uniformly wrapped around the shell 1 (cylindrical pipe shape), and the steel mesh is installed on the connecting structure through bolts, so that the combined structure is stable; 【3】 The measuring assembly (the whole automatic detection device) is placed in a soil body drill hole, and a long steel bar penetrates under a steel mesh to temporarily clamp the measuring assembly entering the drill hole and prevent the measuring assembly from continuing to enter the drill hole; 【4】 Enabling the next measuring assembly to be erected on the previous measuring assembly (a plurality of measuring assemblies are sequentially vertically arranged up and down), and correspondingly welding the longitudinal steel bars of the adjacent measuring assemblies; s5, connecting the communication cables 42 and the joints 421 of the upper and lower shells 1 (cylindrical pipes), and arranging the joint 421 sealing shell 43 outside the connected joints 421 to achieve the waterproof effect; s6, repeating S3-S5 until the casing 1 (cylindrical pipe shape) at the lowest end reaches the bottom of the drill hole.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the counting principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a deep horizontal displacement's of soil body automatic monitoring device which characterized in that: the device comprises a shell with an accommodating cavity, a first stop piece, a second stop piece positioned below the first stop piece and a connecting piece; an opening communicated with the accommodating cavity is formed in the shell, a sealing plug used for sealing the opening is arranged in the opening, a deformation measuring element is arranged on the inner wall of the accommodating cavity, and a communication cable of the deformation measuring element penetrates through the sealing plug to be in communication connection with external monitoring equipment; an installation space is formed between the first stop part and the second stop part, the shell is installed in the installation space, and the first stop part is connected with the second stop part through the connecting piece.
2. The automatic monitoring device for deep horizontal displacements of an earth mass of claim 1, further comprising: the shell is a cylindrical tube, the accommodating cavity is a hollow cavity of the cylindrical tube, and the deformation measuring element is arranged on the inner wall of the cylindrical tube.
3. The automatic monitoring device of the horizontal displacement of the deep part of the soil mass according to claim 2, characterized in that: the number of the openings is two, the number of the sealing plugs is two, the two openings are respectively arranged at two ends of the cylindrical pipe, and the two openings and the two sealing plugs are in one-to-one correspondence.
4. The automatic monitoring device of the horizontal displacement of the deep part of the soil mass according to claim 2, characterized in that: the deformation measuring elements are distributed around the circumference of the shell.
5. The automatic monitoring device of the horizontal displacement of the deep part of the soil mass according to claim 2, characterized in that: the deformation measuring element is a strain gauge extending in the axial direction of the housing.
6. The automatic monitoring device for deep horizontal displacements of an earth mass of claim 5, further comprising: a groove is formed in the inner wall of the shell, and the strain gauge is arranged in the groove.
7. The automatic monitoring device of the horizontal displacement of the deep part of the soil mass according to claim 2, characterized in that: the housing extends in a vertical direction.
8. The automatic monitoring device for deep horizontal displacements of an earth mass of claim 1, further comprising: the end of the communication cable is provided with a connector, and a sealing shell covers the connector.
9. The automatic monitoring device for deep horizontal displacements of an earth mass of claim 1, further comprising: the bottom of the second stop piece is provided with a downward conical piece.
10. The automatic monitoring device for deep horizontal displacements of an earth mass of claim 1, further comprising: the connecting piece is the reinforcing bar, first stopper with the second stopper is the steel mesh respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922143930.3U CN211446863U (en) | 2019-12-02 | 2019-12-02 | Automatic monitoring device for deep horizontal displacement of soil body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922143930.3U CN211446863U (en) | 2019-12-02 | 2019-12-02 | Automatic monitoring device for deep horizontal displacement of soil body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211446863U true CN211446863U (en) | 2020-09-08 |
Family
ID=72318197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922143930.3U Active CN211446863U (en) | 2019-12-02 | 2019-12-02 | Automatic monitoring device for deep horizontal displacement of soil body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211446863U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110904942A (en) * | 2019-12-02 | 2020-03-24 | 广州市建筑科学研究院有限公司 | Automatic monitoring device for deep horizontal displacement of soil body |
-
2019
- 2019-12-02 CN CN201922143930.3U patent/CN211446863U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110904942A (en) * | 2019-12-02 | 2020-03-24 | 广州市建筑科学研究院有限公司 | Automatic monitoring device for deep horizontal displacement of soil body |
| CN110904942B (en) * | 2019-12-02 | 2024-09-24 | 广州市建筑科学研究院有限公司 | Automatic monitoring device for deep horizontal displacement of soil body |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211446863U (en) | Automatic monitoring device for deep horizontal displacement of soil body | |
| JP4858884B2 (en) | Optical fiber type displacement meter system in bedrock | |
| KR20120037553A (en) | System for monitoring wire strand using usn | |
| CN110904942B (en) | Automatic monitoring device for deep horizontal displacement of soil body | |
| CN111189744B (en) | Device and method for detecting grouting compactness of pore canal | |
| CN210031753U (en) | Novel multifunctional digital probe | |
| CN211447047U (en) | Automatic monitoring device for horizontal displacement and axial force of cast-in-place pile foundation | |
| CN203201515U (en) | Underground fishing tool | |
| CN213360101U (en) | Water and soil pressure monitor and water and soil pressure monitoring system for shield machine | |
| KR102237267B1 (en) | Detecting system of geometry motion using tracking | |
| CN209802329U (en) | monitoring devices suitable for deep big displacement of landslide | |
| CN110835933A (en) | Automatic monitoring device for horizontal displacement and axial force of cast-in-place pile foundation | |
| CN216482905U (en) | Deep soil body horizontal displacement monitoring facilities | |
| CN211927603U (en) | Pore grouting compactness detection device | |
| KR102233379B1 (en) | Pipe for inclinometer and inclinometer using the same | |
| CN212779181U (en) | Monitoring device and tunnel and slope deformation monitoring system | |
| CN210193996U (en) | Pipeline cathodic protection detection device in sleeve pipe | |
| CN113917525A (en) | Underground vibration field test sensor array arrangement device and working method thereof | |
| CN211143145U (en) | Subway foundation pit construction monitoring system | |
| CN113640352A (en) | On-site monitoring system and testing method for fracture state of anchor rod in surrounding rock | |
| CN212614681U (en) | Double-probe underground pressure gauge | |
| CN112629586A (en) | Synchronous measuring equipment for internal displacement and apposition stress of rock mass | |
| CN218380958U (en) | Subway station high side wall stability monitoring devices | |
| CN216520823U (en) | Sensor mounting and fixing structure for tunnel blasting test | |
| CN212058700U (en) | Array displacement meter pushes down device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 833, Baiyun Avenue North, Baiyun District, Guangzhou, Guangdong 510000 Patentee after: Guangzhou Academy of Building Sciences Group Co.,Ltd. Country or region after: China Patentee after: GUANGZHOU CONSTRUCTION QUALITY AND SAFETY TESTING CENTER Co.,Ltd. Address before: No. 833, Baiyun Avenue North, Baiyun District, Guangzhou, Guangdong 510000 Patentee before: GUANGZHOU INSTITUTE OF BUILDING SCIENCE Co.,Ltd. Country or region before: China Patentee before: GUANGZHOU CONSTRUCTION QUALITY AND SAFETY TESTING CENTER Co.,Ltd. |
|
| CP03 | Change of name, title or address |