CN219200698U - Karst water burst monitoring device for tunnel excavation - Google Patents
Karst water burst monitoring device for tunnel excavation Download PDFInfo
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- CN219200698U CN219200698U CN202320685382.0U CN202320685382U CN219200698U CN 219200698 U CN219200698 U CN 219200698U CN 202320685382 U CN202320685382 U CN 202320685382U CN 219200698 U CN219200698 U CN 219200698U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The application relates to the field of engineering safety monitoring, in particular to a karst water burst monitoring device for tunnel excavation, which comprises a monitoring main body, a plurality of waterproof assemblies arranged at a rock solution penetrating hole and a plurality of stress meters in communication connection with the monitoring main body; the stress gauges penetrate through the karst body through the waterproof assemblies and extend into karst water; the monitoring main body can display the pressure intensity of the karst water collected by the stress meter on the karst body; the waterproof assembly comprises a mounting annular plate, a switch annular plate and a plurality of connecting plates; the installation annular plate is fixed at a rock solution penetrating hole through bolts, the switch annular plate is rotatably connected to the inner diameter edge of the installation annular plate, the outer diameter of the switch annular plate is abutted to the installation annular plate, and two ends of the connecting plate are respectively fixed on the installation annular plate and the switch annular plate through bolts; the cable of the stress gauge is arranged on the installation annular plate and the switch annular plate in a penetrating way. This application has the effect that promotes the waterproof effect of rock solution department of wearing to establish.
Description
Technical Field
The application relates to the field of engineering safety monitoring, in particular to a karst water inrush monitoring device for tunnel excavation.
Background
The water flow of the underground water in the karst aquifer, which is largely gushed out due to natural reasons or artificial reasons, is called karst water burst. In the process of tunnel excavation, the thickness of a karst aquifer is thinned due to excavation, so that the strength of the karst aquifer is reduced, and karst water burst is caused.
In the related art, manual field investigation is often adopted for monitoring karst water, but the result of the manual field investigation does not have timeliness, and the karst water is relatively rapid, so that monitoring failure can be caused. Therefore, an early warning instrument starts to be used in the process of monitoring karst water burst, and the early warning instrument carries out real-time early warning in a mode of combining the water pressure of the karst water and the self tensile strength of the karst body. However, when a plurality of stress meters adopted by the early warning instrument penetrate into the karst solution and extend into karst water, the diameter of the stress meters is difficult to match with the diameter of the penetrating holes, so that water leakage is easily generated at the penetrating holes of the karst solution.
Disclosure of Invention
In order to promote the waterproof effect of rock solution department of wearing to establish, this application provides a tunnel excavation karst water monitoring devices that bursts.
The application provides a karst water monitoring devices of tunnel excavation adopts following technical scheme:
a karst water burst monitoring device for tunnel excavation comprises a monitoring main body, a plurality of waterproof assemblies arranged at a rock solution penetrating hole and a plurality of stress meters in communication connection with the monitoring main body; the stress meters are penetrated into the karst body by the waterproof assemblies and extend into the karst water;
the monitoring main body can display the pressure of the karst water collected by the stress meter on the karst body;
the waterproof assembly comprises a mounting circular plate, a switch circular plate and a plurality of connecting plates; the installation annular plate is fixed at a rock solution penetrating hole through bolts, the switch annular plate is rotatably connected to the inner diameter edge of the installation annular plate, the outer diameter of the switch annular plate is abutted to the installation annular plate, and two ends of the connecting plate are respectively fixed on the installation annular plate and the switch annular plate through bolts;
the cable of the stress gauge is arranged on the installation annular plate and the switch annular plate in a penetrating mode.
Through adopting above-mentioned technical scheme, when need monitor karst water suddenly, at first offer one or more smooth plane on the karst body, then offer a plurality of holes of wearing on smooth plane to on will install the ring board and be fixed in a plurality of holes of wearing on the karst body one by one, later wear the cable of stress gauge and establish switch ring board and installation ring board in proper order, and with monitor the main part connection, send into the karst body at last and stretch into in the karst water. And finally, fixing the switch ring plate through a plurality of connecting plates, thereby completing sealing. And then the monitoring main body can receive the karst water pressure monitored by the stress meter in real time, so that the real-time monitoring is finished, the monitoring is convenient for workers to check at any time, and the possibility of karst water burst is determined in time. The whole waterproof assembly can block karst water in the karst in the process, so that the waterproof effect of the penetrating position of the karst can be effectively improved.
Optionally, an annular abutting portion is arranged on one side, close to the penetrating hole, of the inner diameter edge of the installation annular plate, and the outer diameter of the switch annular plate abuts against the annular abutting portion.
Through adopting above-mentioned technical scheme, the installation ring board when realizing sealedly, only need the butt in annular butt portion can to can effectively promote with the area of contact of installation ring board, and then promote waterproof effect.
Optionally, a first elastic layer is arranged on one side of the installation annular plate, which is close to the rock solution.
Through adopting above-mentioned technical scheme, when being fixed in the rock solution with the installation ring board through the bolt on, first elastic layer takes place adaptive elastic deformation according to the pressure to can promote the installation ring board and be fixed in the compactness of rock solution, thereby promote sealed water-proof effects.
Optionally, a second elastic layer is disposed at the contact position between the annular contact part and the switch annular plate.
Through adopting above-mentioned technical scheme, when the external diameter border butt of switch ring board was on annular butt portion, the second elastic layer took place adaptability elastic deformation to promote the leakproofness when the butt, and then promote the water-proof effects.
Optionally, a first through hole is formed in the switch ring plate in a penetrating manner, and a second through hole is formed in the annular abutting portion in a penetrating manner; the cable of the stress gauge is arranged in the first penetrating hole and the second penetrating hole in a penetrating mode.
Through adopting above-mentioned technical scheme, the cable of stress meter can be worn to establish the hole by first wearing to establish the hole and the second and wear to establish the hole and wear to establish.
Optionally, a waterproof plug tube is arranged at the penetrating position of the first penetrating hole.
Through adopting above-mentioned technical scheme, can carry out the shutoff to the gap in first wearing to establish the hole through setting up waterproof cartridge to promote the waterproof effect in first wearing to establish hole department.
Optionally, the waterproof cartridge is integrated into one piece has annular border, annular border welds in the switch ring board one side of keeping away from the second hole of wearing.
Through adopting above-mentioned technical scheme, annular border can carry out further shutoff with the gap of first wearing to establish hole department to promote the water-proof effects.
Optionally, waterproof sealant is smeared at the waterproof insertion barrel and the annular edge.
By adopting the technical scheme, when the annular edge is welded, the cable close to the stress meter cannot be welded, otherwise, the cable is damaged. Through adopting waterproof sealant to plug waterproof cartridge and annular border department, can avoid producing the possibility of damage to the cable when promoting the water-proof effects.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the waterproof component can block karst water in the karst body, so that the waterproof effect of the penetrating position of the karst body can be effectively improved;
2. the monitoring main body can monitor in real time through the stress meters, so that the monitoring main body is convenient for a worker to check at any time, and the possibility of karst water burst can be timely determined.
Drawings
Fig. 1 is a schematic overall structure of an embodiment of the present application.
Fig. 2 is a control schematic block diagram in the embodiment of the present application.
Fig. 3 is a schematic structural view of a waterproof assembly according to an embodiment of the present application.
Fig. 4 is a schematic structural view of a mounting ring plate in an embodiment of the present application.
Reference numerals: 1. monitoring a subject; 11. a housing; 12. a controller; 13. an alarm module; 131. an audible alarm unit; 132. a flashing lamp alarm unit; 14. a display module; 141. a first display unit; 142. a second display unit; 143. a third display unit; 15. a lithology input module; 2. a waterproof assembly; 21. installing a circular plate; 211. an annular abutting portion; 2111. a second elastic layer; 2112. a second through hole; 212. a first elastic layer; 22. a switch ring plate; 221. a first through hole; 2211. waterproof insertion cylinder; 2212. an annular rim; 23. a connecting plate; 3. a stress meter.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-4.
The embodiment of the application discloses a karst water monitoring devices of tunnel excavation.
Referring to fig. 1 and 2, a tunnel excavation karst water burst monitoring device includes a monitoring body 1, a plurality of waterproof assemblies 2, and a plurality of strain gauges 3. The waterproof assemblies 2 are respectively arranged at a plurality of penetrating holes of the karst body, the stress meters 3 are respectively in communication connection with the monitoring main body 1, and the stress meters 3 are one-to-one penetrated into the karst body by the waterproof assemblies 2 and extend into karst water. In this embodiment, the number of the stress meters 3 and the waterproof assemblies 2 is two, and in other embodiments, the number of the stress meters 3 and the waterproof assemblies 2 may be two or more.
Referring to fig. 1 and 2, the monitoring body 1 includes a housing 11, a controller 12, an alarm module 13, a display module 14, and a lithology input module 15. The controller 12, the alarm module 13, the display module 14 and the lithology input module 15 are fixedly connected to the shell 11, and the alarm module 13, the display module 14, the lithology input module 15 and the plurality of stress meters 3 are respectively in communication connection with the controller 12.
The alarm module 13 includes an audible alarm unit 131 and a flashing light alarm unit 132. The audible alarm unit 131 and the flashing light alarm unit 132 are communicatively connected to the controller 12, respectively. In the embodiment of the present application, the sound alarm unit 131 is selected as a motor conch alarm, and the flashing light alarm unit 132 is selected as a warning light.
The display module 14 includes a first display unit 141, a second display unit 142, and a third display unit 143. The first display unit 141, the second display unit 142 and the third display unit 143 are respectively in communication connection with the controller 12, and the first display unit 141 is used for displaying the ultimate stress value of the rock solution, the second display unit 142 is used for displaying the lithology mode, and the third display unit 143 is used for displaying the numerical values of the plurality of stress meters 3. In the embodiment of the present application, the first display unit 141, the second display unit 142, and the third display unit 143 are all selected as display screens.
In the embodiment of the present application, the lithology input module 15 is selected as an electronic key set. The electronic key group can select each lithology mode to be displayed on the second display unit 142. Wherein the lithology mode includes a pure limestone mode, a dolomitic limestone mode, an limestone mode, and a dolomitic mode. The controller 12 stores the karst limiting stress values corresponding to the respective modes, so that the karst limiting stress values can be displayed on the first display unit 141 in correspondence. Meanwhile, in order to obtain the karst limiting stress value of the karst more accurately, the on-site karst can be sampled, detected and obtained, and the karst limiting stress value is manually input through the electronic key set.
Referring to fig. 3 and 4, the waterproof assembly 2 includes a mounting circular plate 21, a switching circular plate 22, and a plurality of connection plates 23. The installation annular plate 21 is fixedly connected to the edge of the penetrating hole of the rock solution through bolts, and an annular abutting part 211 is integrally formed on one side, close to the penetrating hole, of the inner diameter edge of the installation annular plate 21. One side edge of the outer diameter of the switch ring plate 22 is hinged to one side of the inner diameter edge of the mounting ring plate 21, which is far away from the through hole, and the outer diameter edge of the switch ring plate 22 is abutted to the annular abutting part 211. The two ends of the plurality of connecting plates 23 are fixedly connected to the connecting positions of the installation annular plate 21 and the switch annular plate 22 through bolts respectively, and the plurality of connecting plates 23 are positioned on one side of the switch annular plate 22 far away from the through holes.
Meanwhile, a first elastic layer 212 is adhered to one side of the installation annular plate 21, which is close to the karst body, and the first elastic layer 212 is abutted between the installation annular plate 21 and the karst body, so that a waterproof effect is improved. The second elastic layer 2111 is adhered to the contact side of the annular contact portion 211 and the switch annular plate 22 to promote contact tightness, thereby increasing waterproof effect. In the embodiment of the present application, the first elastic layer 212 and the second elastic layer 2111 are both made of rubber.
Referring to fig. 1, 3 and 4, a first through hole 221 is formed in the outer diameter edge of the switch ring plate 22, and a second through hole 2112 is formed in the annular contact portion 211. The diameter of the first through hole 221 is the same as the diameter of the second through hole 2112, and a cable connected to the strain gauge 3 can be provided through the first through hole 221 and the second through hole 2112. The cable of the stress meter 3 is positioned at the first through hole 221 and is inserted with a waterproof insertion tube 2211, one end of the waterproof insertion tube 2211 far away from the second through hole is integrally formed with an annular edge 2212, and the annular edge 2212 is welded to one side of the switch annular plate 22 far away from the second through hole 2112. Meanwhile, waterproof sealant is smeared at the waterproof plug 2211 and the annular edge 2212 to increase waterproof effect.
The implementation principle of the karst water burst monitoring device for tunnel excavation is as follows: when karst water burst is required to be monitored, one or more smooth planes are cut and polished on a karst body, a plurality of penetrating holes are formed in the smooth planes, a plurality of waterproof assemblies 2 are arranged on the penetrating holes, and a plurality of stress meters 3 are respectively penetrated into the karst body from the waterproof assemblies 2 and extend into the karst water. The monitoring main body 1 can collect the pressure of karst water on a karst body according to the plurality of stress meters 3, and the controller 12 can receive the karst water pressure and the karst body limit stress value by combining the karst body limit stress value input by the lithology input module 15. An alarm can be sent out by the alarm module 13 when the karst water pressure increases to a value close to the limiting stress of the karst body.
In this process, installation ring board 21 in the waterproofing membrane 2 can be fixed in on the rock solution, and switch ring board 22 can be convenient for wear to establish of stress meter 3, and a plurality of connecting plates 23 can seal switch ring board 22 on installation ring board 21 to waterproof, consequently can effectively promote the waterproof effect of rock solution department of wearing.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (8)
1. The utility model provides a tunnel excavation karst water monitoring devices which characterized in that: the monitoring device comprises a monitoring main body (1), a plurality of waterproof assemblies (2) arranged at rock solution penetrating holes and a plurality of stress meters (3) which are in communication connection with the monitoring main body (1); the stress meters (3) are penetrated into the karst body by the waterproof assemblies (2) and extend into the karst water;
the monitoring main body (1) can display the pressure of the karst water collected by the stress meter (3) on a karst body;
the waterproof assembly (2) comprises a mounting annular plate (21), a switch annular plate (22) and a plurality of connecting plates (23); the installation circular plate (21) is fixed at a rock solution penetrating hole through a bolt, the switch circular plate (22) is rotatably connected to the inner diameter edge of the installation circular plate (21) and the outer diameter of the switch circular plate is abutted to the installation circular plate (21), and two ends of the connecting plate (23) are respectively fixed on the installation circular plate (21) and the switch circular plate (22) through bolts;
the cable of the stress meter (3) is arranged on the installation annular plate (21) and the switch annular plate (22) in a penetrating mode.
2. The tunnel excavation karst water burst monitoring device according to claim 1, wherein: an annular abutting part (211) is arranged on one side, close to the penetrating hole, of the inner diameter edge of the installation annular plate (21), and the outer diameter of the switch annular plate (22) abuts against the annular abutting part (211).
3. The tunnel excavation karst water burst monitoring device according to claim 1, wherein: a first elastic layer (212) is arranged on one side, close to the rock solution, of the installation annular plate (21).
4. The tunnel excavation karst water burst monitoring device according to claim 2, characterized in that: a second elastic layer (2111) is provided at the contact point between the annular contact portion (211) and the switch annular plate (22).
5. The tunnel excavation karst water burst monitoring device according to claim 2, characterized in that: a first penetrating hole (221) is formed in the switch annular plate (22) in a penetrating manner, and a second penetrating hole (2112) is formed in the annular abutting part (211) in a penetrating manner; the cable of the stress gauge (3) is arranged in the first through hole (221) and the second through hole (2112) in a penetrating mode.
6. The tunnel excavation karst water burst monitoring device according to claim 5, wherein: the penetrating position of the first penetrating hole (221) is provided with a waterproof inserting cylinder (2211).
7. The tunnel excavation karst water burst monitoring device according to claim 6, wherein: the waterproof plug tube (2211) is integrally formed with an annular edge (2212), and the annular edge (2212) is welded to one side, far away from the second through hole (2112), of the switch annular plate (22).
8. The tunnel excavation karst water burst monitoring device according to claim 7, wherein: waterproof sealant is smeared at the waterproof insertion barrel (2211) and the annular edge (2212).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320685382.0U CN219200698U (en) | 2023-03-30 | 2023-03-30 | Karst water burst monitoring device for tunnel excavation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320685382.0U CN219200698U (en) | 2023-03-30 | 2023-03-30 | Karst water burst monitoring device for tunnel excavation |
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| Publication Number | Publication Date |
|---|---|
| CN219200698U true CN219200698U (en) | 2023-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320685382.0U Active CN219200698U (en) | 2023-03-30 | 2023-03-30 | Karst water burst monitoring device for tunnel excavation |
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| CN (1) | CN219200698U (en) |
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2023
- 2023-03-30 CN CN202320685382.0U patent/CN219200698U/en active Active
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