CN218060451U - Foundation pit supporting structure horizontal displacement monitoring device - Google Patents
Foundation pit supporting structure horizontal displacement monitoring device Download PDFInfo
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- CN218060451U CN218060451U CN202120634844.7U CN202120634844U CN218060451U CN 218060451 U CN218060451 U CN 218060451U CN 202120634844 U CN202120634844 U CN 202120634844U CN 218060451 U CN218060451 U CN 218060451U
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Abstract
The utility model provides a foundation pit supporting structure horizontal displacement monitoring device, which comprises a reference column, a testing column, a controller and an alarm, wherein the reference column is vertically arranged inside a foundation pit, and an infrared distance sensor is arranged on the reference column; the column body of the test column is arranged along the surface of the foundation pit supporting structure facing the interior of the foundation pit, the projection of the test column on the vertical surface is parallel to the reference column, the test column is provided with an infrared emission tube, and the infrared emission tube faces the infrared distance sensor; the controller is respectively connected with the infrared distance sensor and the alarm; the controller and the alarm are both arranged on the ground. The utility model is used for the safety of construction is guaranteed to real-time supervision underground structure's horizontal displacement.
Description
Technical Field
The utility model relates to a foundation ditch monitoring technology field, more specifically relates to a horizontal displacement monitoring devices of underground structure.
Background
The foundation pit is used as the space below the ground excavated by the building foundation construction, and the reasonable application of excavation, surveying and mapping and monitoring of the foundation pit has important influence on the safety of the foundation pit and surrounding buildings. The foundation pit supporting structure is used for ensuring the safety of buildings, structures, pipes, lines and cables near the edge, maintaining the stability of a soil body near the air in the excavation process of the foundation pit and during the use period of the foundation pit so as to ensure the safety of construction, and adopts supporting, reinforcing and protecting measures for the side wall of the foundation pit and the surrounding environment. In the process of excavation construction of the foundation pit, the soil body on the side wall of the foundation pit tends to move towards the inside of the foundation pit along with excavation of the soil body in the foundation pit, the pressure of the side wall of the foundation pit borne by the foundation pit supporting structure is increased, and accidents are easily caused when the supporting strength of the foundation pit supporting structure is insufficient. Therefore, how to monitor the horizontal displacement of the foundation pit supporting structure in real time is very important for ensuring the safety of surrounding buildings, avoiding potential safety hazards and ensuring the construction precision.
SUMMERY OF THE UTILITY MODEL
In view of the above, the utility model aims at providing an underground structure horizontal displacement monitoring devices for the safety of construction is guaranteed to the horizontal displacement of real-time supervision underground structure.
The utility model provides a horizontal displacement monitoring device of a foundation pit supporting structure, which comprises a reference column, a testing column, a controller and an alarm, wherein the reference column is vertically arranged inside a foundation pit, and an infrared distance sensor is arranged on the reference column; the column body of the test column is arranged along the surface of the foundation pit supporting structure facing the interior of the foundation pit, the projection of the test column on the vertical surface is parallel to the reference column, the test column is provided with an infrared emission tube, and the infrared emission tube faces the infrared distance sensor; the controller is respectively connected with the infrared distance sensor and the alarm; the controller and the alarm are both arranged on the ground.
The upper end of the test column is located at the upper edge of the supporting structure, and the lower end of the test column is located at the lower edge of the supporting structure.
The test column comprises a PVC cylinder or a metal cylinder.
The testing column is characterized in that mounting holes are uniformly formed in the column body of the testing column, and the testing column is fixed on the supporting structure through bolts or anchor rods arranged in the mounting holes.
The distance between the reference column and the test column is less than 4m.
The bottom of the reference column extends at least 2m below the level of the foundation pit.
The testing column is evenly provided with two infrared transmitting tubes, and the distance between the infrared distance sensor and each infrared transmitting tube is the same.
The number of the test columns is two, the distances between the infrared emission tube on each test column and the infrared distance sensor on the reference column are equal, and the test columns are spaced by a set distance.
From the above description, the utility model provides a horizontal displacement monitoring devices of excavation supporting structure, include the test post that sets up along supporting structure's surface, fix the benchmark post in the excavation inside, through setting up the infrared distance measuring component on test post and benchmark post, measure the distance between supporting structure and the benchmark post and whether change, judge whether supporting structure has taken place the displacement, surpass the warning value if the displacement and send the warning through the alarm, remind the staff. The device is simple in structure, easy to install and low in cost, and can monitor the horizontal displacement of the supporting structure in real time, so that safe construction is guaranteed.
Drawings
Other objects and results of the present invention will become more apparent and more readily appreciated as the same becomes better understood by reference to the following description and appended claims, taken in conjunction with the accompanying drawings.
In the drawings:
fig. 1 is a schematic structural view of a horizontal displacement monitoring device of a foundation pit supporting structure according to the embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a horizontal displacement monitoring device of a foundation pit supporting structure according to the embodiment of the present invention 2;
fig. 3 is a schematic structural diagram of a horizontal displacement monitoring device of a foundation pit supporting structure according to the embodiment of the present invention 3;
the device comprises a support structure 1, a reference column 2, a test column 3, a controller 4, an alarm 5, an infrared distance sensor 6, an infrared emission tube 7 and an installation hole 8.
The same reference numbers in all figures indicate similar or corresponding features or functions.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1
Fig. 1 is according to the utility model discloses embodiment 1's excavation supporting construction horizontal displacement monitoring devices's schematic structure diagram.
As shown in fig. 1, the device for monitoring horizontal displacement of a foundation pit supporting structure provided by this embodiment can be used for monitoring horizontal displacement of the foundation pit supporting structure in real time, and is suitable for various supporting structures. The device can be arranged at the external corner and the representative part of the inner periphery of the foundation pit, and also can be arranged at the inner periphery of the foundation pit at certain intervals.
The device comprises a reference column 2, a test column 3, a controller 4 and an alarm 5.
The reference column 2 is used as a reference standard for the horizontal displacement of the supporting structure 1, is vertically fixed on a plane excavated in the foundation pit, and is provided with an infrared distance sensor 6 on the reference column 2. The position of the reference column 2 should not be moved and should be stably fixed, and the bottom of the reference column 2 may penetrate at least 2m below the excavation plane of the foundation pit.
The test column 3 is used as a test piece for the horizontal displacement of the supporting structure 1, and whether the supporting structure 1 is displaced or not is judged according to the change of the distance between the test column 3 and the reference column 2. The cylinder of test post 3 sets up along the surface of supporting construction 1 towards the inside of foundation ditch, and the cylinder of test post 3 is laid on supporting construction 1 surface, becomes an organic whole with supporting construction 1. In order to provide a regular arrangement of each test column 3 on the supporting structure 1, the projection of the test column 3 on the vertical plane is parallel to the reference column 2. An infrared emission tube 7 corresponding to the infrared distance sensor 6 is provided on the test column 3. The infrared emission tube 7 may be flush with the infrared distance sensor 6 and face the infrared distance sensor. The controller 4 is respectively connected with the infrared distance sensor 6 and the alarm 5, the infrared distance sensor 6 detects the distance value between the infrared emission tube 7 and the infrared emission tube in real time and transmits the distance value to the controller 4, and the controller 4 controls the alarm 4 to give an alarm when the distance value is smaller than a set minimum distance value. The controller 4 and the alarm 5 are both arranged on the ground, so that the maintenance and the checking of workers are facilitated.
The cylinder of test post 3 can be cylinder or cuboid cylinder, evenly is provided with mounting hole 8 on the cylinder of test post 3, fixes test post 3 to supporting construction 1 through bolt or stock in mounting hole 8. The test column can be mounted on the surface of the supporting structure by adopting different mounting modes according to different supporting structures 1. If the supporting structure 1 is a steel sheet pile, bolts can be passed through the mounting holes 8, and screw holes are drilled in the steel sheet pile and installed on the steel sheet pile through the bolts. If the supporting structure is a bored concrete pile, an anchor rod may be used to pass through the mounting hole and be mounted to the bored concrete pile.
When the side wall of the foundation pit changes, the supporting structure 1 can be changed, but the position point of the side wall is uncertain, and the side wall can change from the upper end to the lower end, so that the upper end of the test column 3 is flush with the upper edge of the supporting structure 1, and the lower end of the test column 3 is flush with the lower edge of the supporting structure 1. When supporting construction 1 changes at which point in the vertical direction, test column 3 can both follow it and take place the displacement, and the position of infrared emission pipe 7 on test column 3 will change to the distance value that infrared distance sensor 6 detected changes, when the distance value that detects is less than the minimum distance value of settlement, controller 4 control alarm 5 sends the warning, reminds the staff, and supporting construction has taken place horizontal displacement, needs to be maintained.
Because different positions have set up this device respectively in the foundation ditch, when the supporting construction of which position takes place the displacement, the test column that this position laid will take place the displacement, and its corresponding alarm will send out the warning. The worker can accurately check the position where the displacement occurs according to the test column corresponding to the alarm.
By using an infrared distance sensor, the distance between the reference column and the test column is not too far, and should be within the maximum distance that can be received by the sensor, and the distance between the test column and the corresponding reference column is preferably less than 4m.
The distance between every two reference columns can be 20-50 m, and the reference columns and the testing columns can be PVC columns or metal columns.
Example 2
Fig. 2 is according to the utility model discloses embodiment 2's horizontal displacement monitoring devices of underground structure's structural schematic diagram.
As shown in fig. 2, in the device for monitoring horizontal displacement of a foundation pit supporting structure provided in this embodiment, on the basis of embodiment 1, two infrared emission tubes 7 are uniformly arranged on a test column 3, and an infrared distance sensor 9 is arranged on a reference column 2. The infrared distance sensor is at the same distance from each infrared transmitting tube. Each infrared transmitting tube faces the infrared distance sensor. Two infrared transmitting tubes are arranged on one testing column, so that the monitoring density can be increased, and the monitoring is more comprehensive and timely. When one of the infrared transmitting tubes is displaced, the distance value detected by the infrared distance sensor changes. When the distance value is smaller than the set minimum distance value, the controller controls the alarm to give an alarm.
Example 3
Fig. 3 is according to the utility model discloses excavation supporting construction horizontal displacement monitoring devices's of embodiment 3 structural schematic.
As shown in fig. 3, in the device for monitoring horizontal displacement of a foundation pit supporting structure provided in this embodiment, based on embodiment 1, the number of the test columns 3 is two, the number of the reference columns is one, the distance between each test column and each reference column is the same, and the distances between the infrared emission tube 7 on each test column 3 and the infrared distance sensor 6 on each reference column 2 are all the same. Each infrared emission tube faces the infrared distance sensor. The distance between the test columns may be 5m to 10m. The number of the test columns corresponding to the reference columns is increased, the monitoring density can be increased, and the supporting structure can be monitored more accurately. One of the test columns corresponding to the reference column is displaced, and the distance value detected by the infrared distance sensor changes. When the distance value is smaller than the set minimum distance value, the controller controls the alarm to give an alarm.
The excavation supporting structure horizontal displacement monitoring device according to the present invention is described above by way of example with reference to the accompanying drawings. However, it should be understood by those skilled in the art that various improvements can be made to the above-mentioned device for monitoring horizontal displacement of an excavation supporting structure without departing from the scope of the present invention. Therefore, the scope of the present invention should be determined by the content of the appended claims.
Claims (8)
1. A horizontal displacement monitoring device of a foundation pit supporting structure is characterized by comprising a reference column, a test column, a controller and an alarm, wherein,
the reference column is vertically arranged inside the foundation pit, and an infrared distance sensor is arranged on the reference column;
the column body of the test column is arranged along the surface of the foundation pit supporting structure facing the interior of the foundation pit, the projection of the test column on the vertical surface is parallel to the reference column, an infrared emission tube is arranged on the test column, and the infrared emission tube faces the infrared distance sensor;
the controller is respectively connected with the infrared distance sensor and the alarm;
the controller and the alarm are both arranged on the ground.
2. The apparatus of claim 1, wherein the upper end of the test column is located at an upper edge of the support structure and the lower end of the test column is located at a lower edge of the support structure.
3. The apparatus of claim 1, wherein the test column comprises a PVC cylinder or a metal cylinder.
4. The apparatus for monitoring the horizontal displacement of a foundation pit supporting structure according to claim 1, wherein the column body of the test column is uniformly provided with mounting holes, and the test column is fixed on the supporting structure through bolts or anchor rods arranged in the mounting holes.
5. An excavation supporting construction horizontal displacement monitoring device as claimed in claim 1, wherein the distance between the reference column and the test column is less than 4m.
6. The apparatus for monitoring the horizontal displacement of a supporting structure in a foundation pit as claimed in claim 1, wherein the base of the reference column extends at least 2m below the level of the foundation pit.
7. The apparatus for monitoring the horizontal displacement of a supporting structure of a foundation pit as claimed in claim 1, wherein two infrared transmitting tubes are uniformly arranged on the test column, and the distance between the infrared distance sensor and each infrared transmitting tube is the same.
8. The foundation pit supporting structure horizontal displacement monitoring device of claim 1, wherein the number of the test columns is two, the distances between the infrared emission tube on each test column and the infrared distance sensor on the reference column are equal, and the test columns are spaced by 5m-10m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120634844.7U CN218060451U (en) | 2021-03-26 | 2021-03-26 | Foundation pit supporting structure horizontal displacement monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120634844.7U CN218060451U (en) | 2021-03-26 | 2021-03-26 | Foundation pit supporting structure horizontal displacement monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218060451U true CN218060451U (en) | 2022-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120634844.7U Active CN218060451U (en) | 2021-03-26 | 2021-03-26 | Foundation pit supporting structure horizontal displacement monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218060451U (en) |
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2021
- 2021-03-26 CN CN202120634844.7U patent/CN218060451U/en active Active
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