CN214747800U - Structure is monitored to surrounding rock looseness circle extension process long-term - Google Patents
Structure is monitored to surrounding rock looseness circle extension process long-term Download PDFInfo
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- CN214747800U CN214747800U CN202023005390.1U CN202023005390U CN214747800U CN 214747800 U CN214747800 U CN 214747800U CN 202023005390 U CN202023005390 U CN 202023005390U CN 214747800 U CN214747800 U CN 214747800U
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Abstract
The utility model provides a loose circle extension process of country rock long-term monitoring structure, including the country rock, the loose circle of country rock has in the country rock, the monitoring face department of loose circle of country rock is equipped with the multiple spot displacement meter, the multiple spot displacement meter buries underground to the loose circle of country rock until the country rock with the tangential direction looks vertical of the monitoring face of loose circle of country rock, distributed optical fiber also buries underground to the loose circle of country rock until in the country rock and distributes in the upper and lower both sides of multiple spot displacement meter, distributed optical fiber and pulse optical signal transmitter, the optical fiber demodulation analysis appearance is connected respectively, the multiple spot displacement meter, the optical fiber demodulation analysis appearance is connected with data acquisition system, data acquisition system is connected with data analysis system. The utility model discloses can receive follow-up excavation to influence or monitor along with the extension process of time the loose circle of country rock of particular position, can in time acquire the degree of depth and the situation of change of the loose circle of country rock, inspection supporting construction's rationality to forecast the early warning to the loose circle rapid change condition of country rock.
Description
Technical Field
The utility model relates to a surrounding rock looseness circle extension process long-term monitoring structure.
Background
With the rapid development of the fields of traffic, mining, water conservancy, rock and soil, the number of underground engineering constructions is continuously increased. For underground tunnels or caverns, necessary construction period and permanent monitoring and detection are required to be carried out so as to ensure the safety of constructors, operators, engineering structures and the like.
For a rock tunnel or a cavern, the loose ring test is frequently needed because the loose ring reflects the ubiquitous objective physical mechanical state of surrounding rocks and has certain guiding significance for tunnel or cavern support design and the like. Common methods for testing for loose loops include, 1) sonic testing; 2) a seismic wave method; 3) drilling and shooting; 4) multipoint displacement meter method, etc. The former 3 test methods generally test the loosening ring of the surrounding rock only at specific time points, the 4 th test method can only roughly determine the depth of the loosening ring, and in part of the test methods, the depth of the loosening ring is difficult to judge for rock bodies with high crushing degree.
Therefore, it is desirable to provide a monitoring system or monitoring structure capable of monitoring the surrounding rock loosening ring expansion process for a long period of time.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a surrounding rock loosening ring extension process long-term monitoring structure to the not enough of existence among the prior art.
For this reason, the above-mentioned purpose of the present invention is achieved by the following technical solutions:
the utility model provides a surrounding rock loose circle expansion process long-term monitoring structure which characterized in that: the long-term monitoring structure of loose circle extension process of country rock includes the country rock, the loose circle of country rock has in the country rock, the monitoring face department of loose circle of country rock is equipped with the multiple spot displacement meter, the multiple spot displacement meter buries into in loose circle of country rock until the country rock with the tangential direction of the monitoring face of loose circle of country rock mutually perpendicularly underground, distributed optical fiber also buries into in loose circle of country rock until the country rock and distributes in the upper and lower both sides of multiple spot displacement meter, distributed optical fiber is connected respectively with pulse light signal transmitter, optical fiber demodulation analysis appearance, multiple spot displacement meter, optical fiber demodulation analysis appearance are connected with data acquisition system, data acquisition system is connected with data analysis system.
When adopting above-mentioned technical scheme, the utility model discloses can also adopt or make up and adopt following technical scheme:
as the utility model discloses a preferred technical scheme: the distributed optical fiber and the multipoint displacement meter are arranged at 45 degrees.
As the utility model discloses a preferred technical scheme: the distributed optical fibers are arranged in the distributed optical fiber buried pipe, and the two distributed optical fibers are attached to the inner side of the distributed optical fiber buried pipe at opposite positions.
As the utility model discloses a preferred technical scheme: the distributed optical fiber buried pipe is made of a PVC pipe.
The utility model provides a loose circle extension process of country rock monitors structure for a long time, can receive follow-up excavation to the loose circle of country rock of particular position and influence or monitor along with the extension process of time, can in time acquire the degree of depth and the situation of change of loose circle of country rock, inspection supporting structure's rationality to forecast the early warning to the loose circle of country rock rapid change condition, in order to carry out further supporting structure optimization or strengthen.
Drawings
Fig. 1 is a diagram of a long-term monitoring structure of the expansion process of the loose coil of surrounding rock provided by the utility model.
Fig. 2 is the utility model provides a monitoring facilities of surrounding rock loosening ring extension process long-term monitoring structure connects the illustration.
Fig. 3 is a schematic representation of the arrangement within a distributed optical fiber conduit.
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The utility model provides a 2 extension process long-term monitoring structures of loose circle of country rock, including country rock 1, the loose circle of country rock 2 has in the country rock 1, the monitoring face department of loose circle of country rock 2 is equipped with multipoint displacement meter 5, multipoint displacement meter 5 buries into in loose circle of country rock 2 until country rock 1 with the tangential direction looks vertically of the monitoring face of loose circle of country rock 2, distributed optical fiber 9 also buries into in loose circle of country rock 2 and distributes in the upper and lower both sides of multipoint displacement meter 5, distributed optical fiber 9 and pulse light signal transmitter 3, optical fiber demodulation analysis appearance 6 is connected respectively, multipoint displacement meter 5, optical fiber demodulation analysis appearance 6 is connected with data acquisition system 7, data acquisition system 7 is connected with data analysis system 8.
The pulse light signal emitter 3 emits pulse light signals, the light signals are along the distributed optical fibers 9, when the surrounding rock 1 deforms, the distributed optical fiber buried pipe 4 and the surrounding rock deform together, the corresponding optical fibers 9 deform, the frequency of light reflected by the optical fibers 9 changes, the light signals are converted into strain signals through the optical fiber demodulation analyzer 6, the strain condition of the distributed optical fibers 9 is obtained through the data acquisition system 7, and the depth of the surrounding rock loosening ring 2 is determined according to the data analysis system 8. Meanwhile, the deformation condition of each measuring point of the multipoint displacement meter 5 is used for checking the range of the determined surrounding rock loosening ring 2.
In this embodiment: preferably, the distributed optical fiber 9 is arranged at 45 degrees to the multi-point displacement meter 5.
In this embodiment: preferably, the distributed optical fibers 9 are arranged in the distributed optical fiber buried pipe, and two distributed optical fibers 9 are attached to the inner side of the distributed optical fiber buried pipe 4 at opposite positions.
In this embodiment: preferably, the distributed optical fiber buried pipe 4 is made of PVC pipe.
The utility model provides a loose circle extension process of country rock monitors structure for a long time, can receive follow-up excavation to the loose circle of country rock of particular position and influence or monitor along with the extension process of time, can in time acquire the degree of depth and the situation of change of loose circle of country rock, inspection supporting structure's rationality to forecast the early warning to the loose circle of country rock rapid change condition, in order to carry out further supporting structure optimization or strengthen.
The above detailed description is provided for explaining the present invention, and is only a preferred embodiment of the present invention, but not for limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made by the present invention are within the scope of the present invention.
Claims (4)
1. The utility model provides a surrounding rock loose circle expansion process long-term monitoring structure which characterized in that: the long-term monitoring structure of loose circle extension process of country rock includes the country rock, the loose circle of country rock has in the country rock, the monitoring face department of the loose circle of country rock is equipped with multiple spot displacement meter and distributed optical fiber, the multiple spot displacement meter buries into in loose circle of country rock until the country rock with the tangential direction looks vertical of the monitoring face of loose circle of country rock, distributed optical fiber also buries into in loose circle of country rock and distributes in the upper and lower both sides of multiple spot displacement meter, distributed optical fiber is connected respectively with pulse optical signal transmitter, optical fiber demodulation analysis appearance, multiple spot displacement meter, optical fiber demodulation analysis appearance are connected with data acquisition system, data acquisition system is connected with data analysis system.
2. The structure of claim 1, wherein the structure is configured to monitor the expansion process of the loose collar of the surrounding rock for a long time: the distributed optical fiber and the multipoint displacement meter are arranged at 45 degrees.
3. The structure for monitoring the expansion process of the loose collar of the surrounding rock of claim 1 or 2 for a long time is characterized in that: the distributed optical fibers are arranged in the distributed optical fiber buried pipe, and the two distributed optical fibers are attached to the inner side of the distributed optical fiber buried pipe at opposite positions.
4. The structure of claim 3, wherein the structure is configured to monitor the expansion process of the loose collar of the surrounding rock for a long time: the distributed optical fiber buried pipe is made of a PVC pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023005390.1U CN214747800U (en) | 2020-12-14 | 2020-12-14 | Structure is monitored to surrounding rock looseness circle extension process long-term |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023005390.1U CN214747800U (en) | 2020-12-14 | 2020-12-14 | Structure is monitored to surrounding rock looseness circle extension process long-term |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214747800U true CN214747800U (en) | 2021-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202023005390.1U Active CN214747800U (en) | 2020-12-14 | 2020-12-14 | Structure is monitored to surrounding rock looseness circle extension process long-term |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214747800U (en) |
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2020
- 2020-12-14 CN CN202023005390.1U patent/CN214747800U/en active Active
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