CN210774475U - Monitoring experiment device for simulating water pressure of void in tunnel rock stratum - Google Patents
Monitoring experiment device for simulating water pressure of void in tunnel rock stratum Download PDFInfo
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- CN210774475U CN210774475U CN201921124480.7U CN201921124480U CN210774475U CN 210774475 U CN210774475 U CN 210774475U CN 201921124480 U CN201921124480 U CN 201921124480U CN 210774475 U CN210774475 U CN 210774475U
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Abstract
The utility model provides a monitoring experiment device of cavity water pressure in simulation tunnel rock stratum belongs to test device technical field. The device solves the problems of low economic benefit and the like of the existing monitoring experiment device for the water pressure of the void space in the rock stratum. This monitoring experimental apparatus of cavity water pressure in simulation tunnel rock stratum, including measuring the container, it has the hollow chamber that holds that is used for holding the soil body to measure in the container, it is provided with the pore water pressure gauge to hold in the chamber, it is used for holding the drainage component of chamber drainage and be used for adjusting the adjusting plate that holds intracavity portion atmospheric pressure to be equipped with on the measuring container, the adjusting plate level transversely sets up in the both ends that hold intracavity and adjusting plate and the inner wall that holds the chamber laminating sealed contact of linking mutually, the upper end of measuring the container is provided with the driver that control adjusting plate slided from top to bottom, be provided with the detection table that is used for detecting driver internal pressure on the driver. The utility model has the advantages of economical and practical, and stable and uniform air pressure in the measuring container.
Description
Technical Field
The utility model belongs to the technical field of test device, a monitoring experiment device of simulation tunnel rock stratum cavity interstitial water pressure is related to.
Background
Pore water pressure refers to the pressure of groundwater in the soil or rock that acts between the particles or pores. It is divided into hydrostatic pore water pressure and hyperstatic pore water pressure. For highly permeable soils in the absence of water flow, the pore water pressure is approximately equal to the hydrostatic pressure without water flow. For the high-permeability soil under the condition of water flow, the calculation of the pore water pressure is complicated.
At present, most pore water pressure measurement is stopped at a field actual measurement stage, an applied device is a pore water pressure gauge, the device for measuring the pore water pressure on the field has large errors and is often influenced by a field environment, human factors in an operation process easily influence the measurement precision, time is wasted by complicated procedures, and low precision and low efficiency of measurement are caused.
To address this problem, chinese patent discloses a pore water pressure simulation test device [ application number: 2014203758064], which comprises a measuring container, a pore water pressure gauge is arranged in the measuring container, an air inlet pipe is arranged on the upper end cover of the measuring container, an output pipe for draining water is arranged on the lower end cover, an air inlet valve, an exhaust valve and a pressure gauge are arranged on the air inlet pipe, a control valve for controlling the output of liquid is arranged on the output pipe, different pressures of the measuring container are realized by introducing gas into the measuring container, then the soil interstitial water pressure in the measuring container is detected by the pore water pressure gauge, compared with the traditional method for detecting on the spot, the detection is more convenient and the detection accuracy is improved, but because the gas is directly introduced into the measuring container during the measurement, the volume of the container is larger, more gas is needed to be consumed, the detection cost is increased, meanwhile, the gas is more dispersed during the introduction, the uniformity is lacked, and the experimental detection.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned problem, provide an economical and practical, enable the stable even monitoring experiment device of simulation tunnel rock stratum cavity clearance water pressure of air pressure in the measuring vessel.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
the utility model provides a monitoring experimental apparatus of cavity water pressure in simulation tunnel rock stratum, includes the measurement container, the measurement container in have the hollow chamber that holds that is used for holding the soil body, hold and be provided with the pore water pressure gauge in the chamber, the measurement container on be equipped with and be used for holding the drainage component of chamber drainage and be used for adjusting the adjusting plate that holds intracavity portion atmospheric pressure, the adjusting plate level transversely set up in holding intracavity and the both ends of adjusting plate with hold the inner wall in chamber laminating sealed even contact mutually, the upper end of measurement container be provided with the driver that control adjusting plate slided from top to bottom, the driver on be provided with the detection table that is used for detecting driver internal pressure.
In the monitoring experimental device for simulating the pore water pressure in the tunnel rock stratum, the pore water pressure meter is provided with the connecting disc, the side surface of the connecting disc is connected to the inner surface of the measuring container, and the pore water pressure meter is arranged on the lower side end surface of the connecting disc.
In the monitoring experimental device for simulating the pore water pressure in the tunnel rock stratum, the pore water pressure meter is arranged on the axial central line of the connecting disc and is positioned at the center of the connecting disc.
In the monitoring experimental device for simulating the pressure of the water in the gap in the tunnel rock stratum, a plurality of air holes for air to pass through are formed in the connecting disc, and the air holes are uniformly distributed on the connecting disc.
In the above monitoring experimental device for simulating the pressure of the water in the void space in the tunnel rock formation, the upper end of the adjusting plate is provided with a connecting rod extending upwards to the inside of the driver.
In the above monitoring experiment device for simulating the pressure of the air gap water in the tunnel rock stratum, the driver comprises an outer shell and an air cavity arranged in the outer shell and used for inserting the connecting rod, an air inlet channel is arranged at the upper end of the air cavity, an air outlet channel is arranged on the bottom end face of the air cavity, the upper end of the connecting rod penetrates into the air cavity, and a sealing plate in sealing contact with the side wall of the air cavity is arranged at the top end part of the connecting rod.
In the monitoring experiment device for simulating the pressure of the void water in the tunnel rock stratum, the air inlet channel is connected with the air inlet pipeline, the air outlet channel is connected with the air outlet pipeline, the other end of the air outlet pipeline is connected into the air inlet pipeline and communicated with the air inlet pipeline, the air inlet pipeline is provided with the air inlet control valve, and the air outlet pipeline is provided with the air outlet control valve.
In the monitoring experimental device for simulating the pressure of the void water in the tunnel rock stratum, the air inlet control valve is positioned at the lower part of the air outlet pipeline connected with the air inlet pipeline, and the detection meter is arranged on the air inlet pipeline and is positioned below the air inlet control valve.
In the monitoring experimental device for simulating the pressure of the water in the void space in the tunnel rock stratum, the drainage component comprises a drainage pipeline communicated with the inside of the containing cavity, and a drainage control valve for controlling the liquid to enter and exit is arranged on the drainage pipeline.
In the monitoring experimental device for simulating the pressure of the water in the void space in the tunnel rock stratum, the air inlet channel is connected with the first air storage part, and the air outlet channel is connected with the second air storage part.
Compared with the prior art, the utility model has the advantages of:
1. the utility model discloses be provided with the adjusting plate on measuring the container, realize reciprocating of adjusting plate for measuring the container through the adjustment of the inside atmospheric pressure of driver, and then change the inside atmospheric pressure of measuring the container through the adjusting plate, make the atmospheric pressure compressed of measuring the container more even, detect the table and set up on the driver, have more accurate advantage for the detection to measuring the inside atmospheric pressure of container to the detection of the inside atmospheric pressure of driver.
2. The utility model discloses a fix in measuring the container through the connection pad on the pore water pressure gauge, guarantee the stability that the pore water pressure gauge is connected, be located the center department of measuring the container, make the more all-round of measurement of pore water pressure gauge, be favorable to improving measuring precision.
3. The utility model discloses a set up the bleeder vent on the connection pad, through the bleeder vent with gas permeation to soil, guarantee gas permeation's homogeneity.
4. The utility model discloses an inlet channel is last to be connected with first gas storage spare, outlet channel on be connected with second gas storage spare, gas storage spare is used for temporarily storing gas when the inside gas exchange of driver to this improves the stability of the interior gas operation of driver.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the internal structure of the middle driver of the present invention.
In the figure, 1, a measuring vessel; 2. an accommodating chamber; 3. a pore water pressure gauge; 4. a drainage member; 5. an adjustment plate; 6. a driver; 7. detecting a table; 8. a connecting disc; 9. air holes are formed; 10. a connecting rod; 11. an outer housing; 12. an air cavity; 13. an air intake passage; 14. an air outlet channel; 15. a sealing plate; 16. an air intake duct; 17. an air outlet pipe; 18. an air intake control valve; 19. an air outlet control valve; 20. a water discharge pipeline; 21. a drain control valve; 22. A first gas storage member; 23. a second gas storage member.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, a monitoring experiment device for simulating the pressure of the void water in the tunnel rock stratum, which comprises a measuring container 1, a hollow accommodating cavity 2 for accommodating the soil body is arranged in the measuring container 1, a void water pressure gauge 3 is arranged in the accommodating cavity 2, a drainage component 4 for accommodating the drainage of the cavity 2 and an adjusting plate 5 for adjusting the air pressure inside the accommodating cavity 2 are arranged on the measuring container 1, the adjusting plate 5 is horizontally and transversely arranged in the accommodating cavity 2, two ends of the adjusting plate 5 are attached to and in sealed contact with the inner wall of the accommodating cavity 2, a driver 6 for controlling the adjusting plate 5 to slide up and down is arranged at the upper end of the measuring container 1, and a detection meter 7 for detecting the air pressure inside the driver 6 is arranged on the driver 6.
Before test detection, the monitoring experimental device firstly adjusts the air pressure of the measuring container 1, the adjusting plate 5 in the containing cavity can move up and down under the working action of the driver 6, when the adjusting plate 5 moves down, the space in the containing cavity is further compressed, so that the pressure in the containing cavity 2 rises, the gas in the containing cavity 2 can further permeate into the soil, then the pore water pressure is measured by the pore water pressure gauge 3, the data measured by the pore water pressure gauge 3 is read by an external reading device to complete the whole measuring process, when the pressure in the containing cavity 2 needs to be released, the driver 6 works upwards to drive the adjusting plate 5 to move upwards, the up-and-down movement of the adjusting plate 5 relative to the measuring container 1 is realized through the adjustment of the air pressure in the driver 6, and then the air pressure in the measuring container 1 is changed through the adjusting plate 5, so that the air pressure in the measuring container 1 is compressed more uniformly, at the same time, the volume of the air chamber 12 in the driver 6 is smaller than that of the accommodating chamber 2, and less air needs to be used.
As shown in fig. 1, in this embodiment, a connection pad 8 is disposed on the pore water pressure gauge 3, a side surface of the connection pad 8 is connected to an inner surface of the measurement container 1, the connection pad 8 is disposed in the accommodating cavity 2 of the measurement container 1 and is located on an axial central line of the connection pad 8, the pore water pressure gauge 3 is disposed in the accommodating cavity 2 through the connection pad 8 to improve connection stability of the pore water pressure gauge 3, so that the pore water pressure gauge 3 is located at the same detection position when used every time, and the detection precision is improved, meanwhile, the pore water pressure gauge 3 is located at the center of the connection pad 8, and when the vent holes 9 are uniformly distributed on the connection pad 8, the gas in the accommodating cavity 2 permeates into the soil more uniformly through the vent holes 9, and is combined with the pore water pressure gauge 3 located at the center, and the detection precision is further improved.
As shown in fig. 2, in the present embodiment, the upper end of the adjustment plate 5 has a connecting rod 10 extending upward to the inside of the driver 6. The connecting rod 10 can be connected with the adjusting plate 5 in an integrated forming mode or in a dismounting mode, when the adjusting plate is used, the connecting rod 10 is perpendicular to the plate surface of the adjusting plate 5, the adjusting plate 5 is connected with the inside of the driver 6 through the connecting rod 10, and the driver 6 controls the up-down movement of the adjusting plate 5 through the connecting rod 10 when moving.
In the present embodiment, it should be appreciated by those skilled in the art that the actuator 6 may be a commercially available air cylinder or oil cylinder, and the actuator 6 is used to control the up and down movement of the adjustment plate 5 in the present embodiment.
As shown in fig. 2, in this embodiment, preferably, the driver 6 includes an outer housing 11 and an air cavity 12 disposed in the outer housing 11 and into which the connecting rod 10 is inserted, an air inlet channel 13 is disposed at an upper end of the air cavity 12, an air outlet channel 14 is disposed on a bottom end surface of the air cavity 12, an upper end of the connecting rod 10 penetrates into the air cavity 12, a sealing plate 15 in sealing contact with a side wall of the air cavity 12 is disposed at a top end portion of the connecting rod 10, an air inlet duct 16 is connected to the air inlet channel 13, an air outlet duct 17 is connected to the air outlet channel 14, another end of the air outlet duct 17 is connected to the air inlet duct 16 and is communicated with the air inlet duct 16, an air inlet control valve 18 is disposed on the air inlet duct 16, and an air.
When the driver 6 is in use and work, the air inlet control valve 18 is opened to introduce air into the air cavity 12, the sealing plate 15 moves downwards to press the air in the lower half part of the air cavity 12 into the air outlet channel 14, the adjusting plate 5 is in a downward movement state relative to the driver 6 due to the downward movement of the sealing plate 15, the detection meter 7 connected to the driver 6 is observed, after the air pressure on the detection meter 7 reaches a required standard value, the air inlet control valve 18 is closed to stop air supply to enable the adjusting plate 5 to be in a static state, and when exhaust is required, the air inlet control valve 18 is closed, the air outlet control valve 19 is opened, and the air in the exhaust channel flows back into the air inlet pipeline 16 so as to recycle the air.
As shown in fig. 2, preferably, the intake control valve 18 is located at a lower portion of the outlet pipe 17 connected to the intake pipe 16, and the detection gauge 7 is provided on the intake pipe 16 and below the intake control valve 18.
As shown in fig. 1, the drain member 4 includes a drain pipe 20 communicating with the inside of the receiving chamber 2, and a drain control valve 21 is further provided on the drain pipe 20 in order to control the discharge of the soil liquid in the receiving chamber 2.
As shown in fig. 2, preferably, the air inlet channel 13 is connected to a first air storage 22, the air outlet channel 14 is connected to a second air storage 23, the air storage is used for temporarily storing air during air exchange inside the driver 6, so as to improve the stability of air operation inside the driver 6, the first air storage 22 and the second air storage 23 may be common containers in the market for storing air, such as an air cylinder and an air tank, the air storage is connected to the outer housing 11, and the mouth of the air storage is communicated with the air passage inside the outer housing 11.
The utility model discloses a theory of operation does: before the experimental detection of the monitoring experimental device, the air pressure of the measuring container 1 needs to be adjusted, therefore, the driver 6 starts to work, the air inlet control valve 18 is opened to introduce air into the air cavity 12, the sealing plate 15 moves downwards to press the air at the lower half part of the air cavity 12 into the air outlet channel 14, the adjusting plate 5 is in a downward movement state relative to the driver 6 due to the downward movement of the sealing plate 15, when the adjusting plate 5 moves downwards, the space in the accommodating cavity is further compressed to cause the pressure in the accommodating cavity 2 to rise, the air in the accommodating cavity 2 further permeates into the soil, the detection table 7 connected to the driver 6 is observed, after the air pressure on the detection table 7 reaches a required calibration value, the air inlet control valve 18 is closed to stop air supply to cause the adjusting plate 5 to be in a static state, the pore water pressure is measured by the pore water pressure gauge 3, and the data measured by the pore water pressure gauge 3 is read by an external reading device to complete the whole measuring process The intake control valve 18 is closed, and the exhaust control valve 19 is opened to return the gas on the exhaust passage 14 into the intake pipe 16 for recycling.
When the monitoring experiment device finishes detection and the adjusting plate 5 needs to be reset, the gas control valve is closed, the gas outlet control valve 19 is opened, gas flows back into the gas cavity 12 through the gas outlet channel 14, the sealing plate 15 moves upwards, gas on the upper portion of the sealing plate 15 can be temporarily stored in the first gas storage part 22, after the sealing plate 15 is completely reset, the gas outlet control valve 19 is closed, and the gas inlet control valve 18 is opened to reintroduce the gas on the gas inlet channel 13 into the gas inlet pipeline 16 so as to recycle the gas.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although terms of the measuring container 1, the accommodating chamber 2, the pore water pressure gauge 3, the drainage member 4, the adjustment plate 5, the driver 6, the detection gauge 7, the connection disc 8, the ventilation hole 9, the connection rod 10, the outer housing 11, the air chamber 12, the air inlet passage 13, the air outlet passage 14, the sealing plate 15, the air inlet pipe 16, the air outlet pipe 17, the air inlet control valve 18, the air outlet control valve 19, the drainage pipe 20, the drainage control valve 21, the first air reservoir 22, the second air reservoir 23, and the like are used more extensively herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.
Claims (10)
1. A monitoring experiment device for simulating the pressure of water in a void space in a tunnel rock stratum comprises a measuring container (1), the measuring container (1) is internally provided with a hollow accommodating cavity (2) for accommodating soil mass, it is characterized in that a pore water pressure gauge (3) is arranged in the containing cavity (2), the measuring container (1) is provided with a drainage component (4) for draining the accommodating cavity (2) and an adjusting plate (5) for adjusting the air pressure in the accommodating cavity (2), the adjusting plate (5) is horizontally and transversely arranged in the accommodating cavity (2), two ends of the adjusting plate (5) are attached to the inner wall of the accommodating cavity (2) in a sealing and contact manner, the upper end of the measuring container (1) is provided with a driver (6) for controlling the adjusting plate (5) to slide up and down, the driver (6) is provided with a detection meter (7) for detecting the air pressure in the driver (6).
2. The experimental apparatus for monitoring void water pressure in a simulated tunnel rock formation as claimed in claim 1, wherein said void water pressure gauge (3) is provided with a connecting disc (8), the side surface of said connecting disc (8) is connected to the inner surface of the measuring container (1), said void water pressure gauge (3) is arranged on the lower side end surface of the connecting disc (8).
3. The experimental apparatus for monitoring void water pressure in a simulated tunnel rock formation as claimed in claim 2, wherein said void water pressure gauge (3) is disposed on the axial center line of the connecting disc (8) at the center of the connecting disc (8).
4. The experimental device for monitoring the pressure of the water in the void space in the simulated tunnel rock stratum as claimed in claim 2, wherein a plurality of air holes (9) for air to pass through are formed in the connecting disc (8), and the air holes (9) are uniformly distributed on the connecting disc (8).
5. The experimental apparatus for monitoring simulation of void water pressure in tunnel rock formation as claimed in claim 1, wherein the upper end of said adjusting plate (5) has a connecting rod (10) extending upward to the inside of the driver (6).
6. The device for monitoring and testing the pressure of the air gap water in the simulated tunnel rock formation is characterized in that the driver (6) comprises an outer shell (11) and an air cavity (12) which is arranged in the outer shell (11) and used for inserting the connecting rod (10), an air inlet channel (13) is formed in the upper end of the air cavity (12), an air outlet channel (14) is formed in the bottom end face of the air cavity (12), the upper end of the connecting rod (10) penetrates into the air cavity (12), and a sealing plate (15) which is in sealing contact with the side wall of the air cavity (12) is arranged at the top end of the connecting rod (10).
7. The device for monitoring and testing the pressure of the void water in the simulated tunnel rock formation according to claim 6, wherein an air inlet pipeline (16) is connected to the air inlet channel (13), an air outlet pipeline (17) is connected to the air outlet channel (14), the other end of the air outlet pipeline (17) is connected into the air inlet pipeline (16) and communicated with the air inlet pipeline (16), an air inlet control valve (18) is arranged on the air inlet pipeline (16), and an air outlet control valve (19) is arranged on the air outlet pipeline (17).
8. The device for monitoring and testing the pressure of the void water in the simulated tunnel rock formation as claimed in claim 7, wherein the air inlet control valve (18) is located at the lower part of the connection between the air outlet pipeline (17) and the air inlet pipeline (16), and the detection meter (7) is arranged on the air inlet pipeline (16) and is located below the air inlet control valve (18).
9. The experimental apparatus for monitoring void water pressure in a simulated tunnel rock formation as claimed in claim 1, wherein said drainage member (4) comprises a drainage pipe (20) communicated with the interior of the containing chamber (2), said drainage pipe (20) being provided with a drainage control valve (21) for controlling the liquid to flow in and out.
10. The experimental apparatus for monitoring void water pressure in a simulated tunnel rock formation as claimed in claim 6, wherein said gas inlet channel (13) is connected with a first gas storage member (22), and said gas outlet channel (14) is connected with a second gas storage member (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921124480.7U CN210774475U (en) | 2019-07-17 | 2019-07-17 | Monitoring experiment device for simulating water pressure of void in tunnel rock stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921124480.7U CN210774475U (en) | 2019-07-17 | 2019-07-17 | Monitoring experiment device for simulating water pressure of void in tunnel rock stratum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210774475U true CN210774475U (en) | 2020-06-16 |
Family
ID=71049948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921124480.7U Expired - Fee Related CN210774475U (en) | 2019-07-17 | 2019-07-17 | Monitoring experiment device for simulating water pressure of void in tunnel rock stratum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210774475U (en) |
-
2019
- 2019-07-17 CN CN201921124480.7U patent/CN210774475U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 312400 middle forest building, No. 232, No. 232, south-east Road, Lushan street, Shengzhou, Zhejiang Patentee after: ZHEJIANG ZHONGLIN EXPLORATION AND RESEARCH Co.,Ltd. Address before: 311800 15 / F, Furun building, No.19, Dongxiang Road, Huandong street, Zhuji City, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG ZHONGLIN EXPLORATION AND RESEARCH Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| CB03 | Change of inventor or designer information |
Inventor after: Du Hongyang Inventor after: Wu Yuehong Inventor after: Qian Chengfeng Inventor after: Kan Jiajun Inventor after: Shang Jingyu Inventor after: Reed edge Inventor after: Yuan Zhongping Inventor before: Du Hongyang Inventor before: Wu Yuehong Inventor before: Qian Chengfeng Inventor before: Kan Jiajun Inventor before: Shang Jingyu Inventor before: Reed edge Inventor before: Yuan Zhongping |
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| CB03 | Change of inventor or designer information | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200616 Termination date: 20210717 |
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| CF01 | Termination of patent right due to non-payment of annual fee |