CN113588913B - Physical test system and method for simulating disaster caused by underground space development - Google Patents
Physical test system and method for simulating disaster caused by underground space development Download PDFInfo
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- CN113588913B CN113588913B CN202110675987.7A CN202110675987A CN113588913B CN 113588913 B CN113588913 B CN 113588913B CN 202110675987 A CN202110675987 A CN 202110675987A CN 113588913 B CN113588913 B CN 113588913B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
Abstract
The application relates to the technical field of disaster causing mechanism and prevention and control of geological disasters, in particular to a physical test system for simulating development and disaster causing of underground space. The device comprises a mounting frame, an upper test box arranged above the mounting frame, a water supply and drainage circulating system arranged at the lower part of the mounting frame, a detection control unit arranged in the upper test box and a climate simulation unit for simulating natural climate change; the upper test box comprises an outer test box for containing water and an inner test box for containing soil, the top of the outer test box is open, a first through hole is formed in the middle of the bottom surface, the upper end of the inner test box is open, and a second through hole is formed in the bottom of the inner test box; the technical scheme can simulate and research the evoked factors, the soil hole evolution and the collapse process of the karst soil hole collective collapse caused by the cluster effect.
Description
Technical Field
The application belongs to the technical field of disaster causing mechanism and prevention and control of geological disasters, and particularly relates to a physical test system and method for simulating development and disaster causing of underground space.
Background
The development and use of underground space, such as tunnel, can often cause geological gap infiltration, and the process of infiltration can drive soil particle flow to produce ground subsidence, ground subsidence is a typical geological disaster, has strong disguise, difficult predictability and process complicacy's characteristics, often clusters the emergence of piece, and the cluster effect is obvious. So far, the mechanism of collapse causes is more than 10, and the principles of gravity collapse, undercooking collapse, gas explosion collapse and three-machine theory are proposed by Xu Weiguo, kang Yanren, and Luo Xiaojie, and the like are well known, and under the guidance of the theory, the prediction and prevention of the ground collapse in China are greatly progressed, but the disaster inducing factors are complex and changeable, the prevention and treatment measures are single, and some collapse points recur after multiple treatments, so that the effect of radically treating the ground collapse is not achieved, and a large amount of manpower and material resources are consumed. The natural conditions are extremely complex and changeable, the nature of collapse disaster causing is a multi-factor comprehensive linkage process, the existing ground collapse mechanism or cause research is limited to phenomenon reasoning under ideal conditions or research is carried out aiming at a certain point, and the systematic research on the induction factors, the soil hole evolution and the collapse process of the soil hole collective collapse caused by the cluster effect is insufficient; on the other hand, the method is also limited to the current state of the art, and high-precision equipment like medical diagnosis, such as CT scanning technology and nuclear magnetic resonance technology, are difficult to comprehensively study geological disasters, and even if relatively advanced technical means such as geological radar, high-density electrical method, shallow seismic wave reflection method and the like are used, accurate judgment and effective prevention and treatment of the essence of the ground subsidence group are difficult to carry out due to the multiple interpretation of geophysical interpretation.
Disclosure of Invention
Aiming at the defects of the technology, the application aims to provide a physical test system and a physical test method for simulating disaster development in underground space so as to research the factors inducing collapse due to the action of cluster effect, soil hole evolution and collapse process, and further accurately judge and effectively prevent and treat the ground collapse group.
In order to achieve the above purpose, the technical scheme adopted by the application is as follows:
the physical test system for simulating disaster caused by underground space development comprises a mounting frame, an upper test box arranged on the mounting frame, a water supply and drainage circulating system arranged at the lower part of the mounting frame, a detection control unit arranged in the upper test box and a climate simulation unit for simulating natural climate change;
the upper test box comprises an outer test box for containing water and an inner test box for containing soil, the top of the outer test box is open, a first through hole is formed in the middle of the bottom surface, a plurality of inner test boxes are arranged in the outer test box, the upper ends of the inner test boxes are open, a second through hole is formed in the bottoms of the inner test boxes, micropores are formed in the outer wall of the single inner test box, and are round holes and/or strip-shaped holes which are distributed in a mixing mode so as to simulate soil layer pores and cracks, and the simulation effect on the external environment is further improved;
the water supply and drainage circulating system comprises a water tank, a water pump, a first connecting pipe and a first gate valve, wherein the water pump pumps water in the water tank to an external test box through the connecting pipe, a partition board is arranged in the water tank, the water tank is divided into four chambers by the partition board, the four chambers are a first sedimentation chamber, a second sedimentation chamber, a third sedimentation chamber and a fourth sedimentation chamber in sequence, a partition board between the first sedimentation chamber and the second sedimentation chamber, a partition board between the second sedimentation chamber and the third sedimentation chamber, and a water permeable hole are formed in the upper parts of the partition boards of the third sedimentation chamber and the fourth sedimentation chamber, and the water pump is positioned in the fourth sedimentation chamber;
the second through holes of the internal test boxes are respectively communicated with the first sedimentation chamber through second connecting pipes, second gate valves for controlling the on-off of water flow of the connecting pipes are arranged on the second connecting pipes, karst cavities connected with the second gate valves in series are arranged on the second connecting pipes, and the karst cavities are used for collecting soil discharged from the internal test boxes.
Further limited, the detection control unit comprises a monitoring unit, a control unit and a video system, wherein the monitoring unit comprises an optical fiber sensor for monitoring soil deformation, a pressure pore fluid osmometer for monitoring water pressure in a soil pore, and a water-air pressure monitor for monitoring water air pressure in a karst cavity, the control unit comprises computer terminal software, a timer, a water level monitor and a rain gauge, the computer terminal software is in signal connection with the monitoring unit and is used for collecting, transmitting, calculating and storing physical data, the timer is used for controlling rainfall and sunshine time, the water level monitor is used for controlling test water level, and the rain gauge is used for controlling single rainfall. The video system consists of a high-definition camera and is used for shooting test processes and results and providing a ground subsidence group generation, development and subsidence overall process reproduction video.
The climate simulation unit comprises a pressure water accumulation rainfall device and an air dryer, wherein the water inlet end of the pressure water accumulation rainfall device is connected with the water outlet end of a water pump in a water supply and drainage system, and the other end of the pressure water accumulation rainfall device is positioned right above an upper test box.
The bottom of the karst cavity is conical, and the upper part of the karst cavity is connected with the second connecting pipe in series.
Further limiting, the partition plates between the first sedimentation chamber and the second sedimentation chamber, the partition plates between the second sedimentation chamber and the third sedimentation chamber, and the partition plates between the third sedimentation chamber and the fourth sedimentation chamber are respectively provided with a filter layer, and the filter layers cover the permeable Kong Quanfu on the partition plates.
Further limited, the external test box, the internal test box, the water tank and the karst cavity are all made of transparent materials, and the device has the advantages that the water level of the external test box, the soil body change in the internal test box, the water quality in the water tank and the collapse soil body quantity in the karst cavity are convenient to observe.
Further limited, the transparent material is glass, which is beneficial in that the cost of the glass is low.
Further limiting, the shape of outside test box and inside test box is cylindrical, and a plurality of inside test box is tangent to the inner wall of outside test box and arranges, and its beneficial lies in that, cylindrical area of contact can be reduced when the installation, has increased the inflow area of inside test box promptly, promotes the infiltration effect of soil body.
In summary, the operation method of the technical scheme comprises the following steps:
step 1, collecting a covering layer soil sample required by a test, and measuring natural density and natural water content; taking a soil sample by using a ring cutter, performing a direct shear test, and measuring an internal friction angle and a cohesive force;
step 2, the soil sample collected in the step 1 is sent to a laboratory for drying and crushing for later use;
step 3, mixing powder sand and a dried soil sample according to the natural density and the natural water content measured in the step 1 in proportion, and preparing a cover soil body required by a test;
and 4, layering and paving the soil sample prepared in the step 3 in an internal test box, wherein the thickness of each soil layer is 2cm and compaction is carried out, the total thickness of the soil layer is determined according to the test purpose, and the optical fiber sensor and the pore fluid osmoticum score three layers are paved.
And 5, closing a gate valve of a second connecting pipe, injecting water into the external test box through the variable-frequency water suction pump and the water level controller, slowly penetrating the injected water into a tested covering soil layer from micropores of the internal test box, and opening the gate valve after the soil layer reaches a certain saturation degree, and discharging the water into a water tank through the second connecting pipe.
And 6, repeating the step 5 until all the tested covering soil layers reach saturation.
And 7, starting an air dryer, and air-drying the tested covering soil layer to solidify the soil layer.
And 8, repeating the steps 5-6, simulating the soil layer consolidation process, and forming a soil hole at the bottom.
And 9, calculating daily rainfall in the simulated area according to the test purpose, starting to implement a rainfall process, starting a water level sensor, a water pressure sensor, an optical fiber sensor, a pore fluid osmometer and video monitoring, rainfall to the test required water level, starting a gate valve of a second connecting pipe, discharging water in the soil layer, and collecting the soil layer.
And step 10, repeating the step 9 until the soil layer collapses.
And 11, collecting and analyzing collapse test process data of the karst collapse group, establishing a water-soil-gas functional relation, decrypting an action mechanism of the underground engineering activity induced collapse group, and providing a solution for preventing and controlling the karst ground collapse group.
The application has the technical effects that:
(1) The method is characterized by carrying out process simulation on multiple factors such as soil thickness and deformation, soil hole evolution and collapse, water vapor pressure, rainfall, groundwater level fluctuation and the like of the karst ground subsidence group, and characterizing the causative mechanism of the karst ground subsidence group by combining qualitative and quantitative characteristics, thereby providing theoretical support for preventing and controlling the karst ground subsidence by the system. (2) The arrangement of a plurality of internal test boxes can simulate karst ground subsidence groups, and can be used for researching the induction factors, soil hole evolution and collapse processes of karst soil hole collective collapse caused by the action of the cluster effect. (3) The water supply and drainage circulation system can be used for recycling the water source used in the test.
Drawings
FIG. 1 is a front view of a physical testing apparatus in this embodiment;
FIG. 2 is a top view of the external and internal test chambers of this embodiment;
FIG. 3 is a top view of the sink in this embodiment;
FIG. 4 is a schematic top view of a physical testing apparatus in this embodiment;
fig. 5 is a schematic diagram of connection between the karst cavity and the second connection pipe in this embodiment.
Wherein, mounting bracket 1, outside test box 2, first through-hole 21, basin 3, first sedimentation chamber 31, second sedimentation chamber 32, third sedimentation chamber 33, fourth sedimentation chamber 34, pressure ponding rainfall ware 4, water pump 5, measuring pump 6, computer terminal 7, second connecting pipe 8, first connecting pipe 81, karst cavity 9, inside test box 10, second through-hole 101.
Detailed Description
The following is a further detailed description of the embodiments:
as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the physical test system simulating disaster development in underground space comprises a mounting frame 1, the mounting frame 1 is formed by mutually fixing a cross beam and a longitudinal beam of stainless steel, a support beam is further arranged at the upper end of the mounting frame 1, a placing space is formed at the upper part of the support beam, an upper test box is installed in the placing space, the upper test box mainly comprises an outer test box 2 and an inner test box 10, the inner test box 10 is arranged in the outer test box 2, in the embodiment, the inner test box 10 and the outer test box 2 are uniformly provided with a bottom cover and a cylinder with a hollowed middle part, the inner test box 10 and the outer test box 2 are made of transparent glass, the outer test box 2 is used for containing water and simulating underground water level, a first through hole 21 is formed in the bottom surface of the outer test box 2, the first through hole 21 is used for conveniently discharging water in the outer test box 2, a plurality of inner test boxes 10 are arranged in the outer test box 2, 3 inner test boxes are arranged in the inner test box 2, the inner test boxes can meet the actual conditions of the inner test box 10, the inner test box 10 can meet the actual conditions of the inner test box and the inner test box 101 and the outer test box, the inner test box is provided with the inner test box 101, and the inner test box is provided with a plurality of the inner test holes 101, and the inner test box is provided with the same two-dimensional test holes, and the inner test box is provided with the inner test box and the two-dimensional test box is provided with the inner test box.
The lower part of the mounting frame 1 is provided with a water supply and drainage circulating system which comprises a water tank 3, a water pump 5, a first connecting pipe 81 and a first gate valve, wherein the water tank 3 is in a cylinder shape, the inside of the water tank 3 is provided with a baffle plate which divides the inner space of the water tank 3 into four parts which are respectively a first sedimentation chamber 31, a second sedimentation chamber 32, a third sedimentation chamber 33 and a fourth sedimentation chamber 34, the baffle plate between the first sedimentation chamber 31 and the second sedimentation chamber 32, the baffle plates between the second sedimentation chamber 32 and the third sedimentation chamber 33 and the upper parts of the baffle plates of the third sedimentation chamber 33 and the fourth sedimentation chamber 34 are respectively provided with water permeable holes, the water pump 5 is positioned in the fourth sedimentation chamber 34, the water pump 5 is sent to the inside of outside test chamber 2 through the water pump 5 in the first connecting pipe 81 with the basin 3, be equipped with a plurality of micropores simultaneously on the outside surface of inside test chamber 10, the micropore effect is inside the soil layer of infiltration to inside test chamber 10 with in the outside test chamber 2, simulate the infiltration mode of groundwater in the soil layer, and the water in the outside test chamber 2 discharges to the fourth sedimentation chamber 34 of basin 3, micropore on the outer wall of outside test chamber 2 is round hole and the bar hole of mixed distribution, its advantage lies in, the mixed setting in round hole and bar hole can simulate soil layer hole and crack, further promote the simulation effect to external environment. The water pump 5 is a variable frequency suction pump in this embodiment. The second through hole 101 of the internal test chamber 10 is communicated with the first sedimentation chamber 31 through the second connecting pipe 8, and the purpose of the first sedimentation chamber 31, the second sedimentation chamber 32, the third sedimentation chamber 33 and the fourth sedimentation chamber 34 is to facilitate the gradual sedimentation of the discharged water, preferably, in the embodiment, the filter layers are arranged on the partition plates provided with the water permeable holes, and the filter layers can be geotechnical cloth layers, so that the filtering effect of muddy water can be enhanced.
As shown in fig. 5, in order to collect the collapse coating in the plurality of internal test chambers 10 respectively, the subsequent weighing is convenient, a karst cavity 9 is arranged on each second connecting pipe 8, the karst cavity 9 is connected in series on the second connecting pipe 8, the water inlet end is positioned at the upper end of the karst cavity 9, the water outlet end is positioned at the upper part of the karst cavity 9, and the advantage is that muddy water discharged from the internal test chambers 10 can be discharged from bottom to top in the karst cavity 9 gradually, so that the muddy water in the muddy water is convenient to collect, meanwhile, a branch pipe is arranged at the bottom end of the karst cavity 9, a gate valve is arranged on the branch pipe, and the collected muddy water is convenient to discharge.
In order to simulate natural environment and measure physical constants received in the soil layer collapse process, the application also comprises a detection control unit and a climate simulation unit, wherein the detection control unit comprises a monitoring unit, a control unit and a video system, the monitoring unit comprises an optical fiber sensor for monitoring soil deformation, a pressure pore fluid osmometer for monitoring the water pressure in a soil pore, and a water-air pressure monitor for monitoring the water air pressure in a karst cavity 9, the control unit comprises computer terminal 7 software, a timer, a water level monitor and a rain gauge, the computer terminal 7 software is connected with the monitoring unit and used for collecting, transmitting, calculating and storing physical data, the timer is used for controlling rainfall and sunshine time, the water level monitor is used for controlling test water level, and the rain gauge is used for controlling single rainfall. The video system consists of a high-definition camera and is used for shooting test processes and results and providing a video of the occurrence, development and collapse of karst ground collapse groups.
The climate simulation unit comprises a pressure water accumulation rainfall device 4 and an air dryer, wherein the water inlet end of the pressure water accumulation rainfall device 4 is connected with the water outlet end of a water pump 5 in a water supply and drainage system, and the other end of the pressure water accumulation rainfall device is positioned right above an upper test box.
The gate valve used in the present apparatus may be a commercially available ordinary gate valve.
The physical test device is operated as follows:
step 1, collecting a covering layer soil sample required by a test, and measuring natural density and natural water content; taking a soil sample by using a ring cutter, performing a direct shear test, and measuring an internal friction angle and a cohesive force;
step 2, the soil sample collected in the step 1 is sent to a laboratory for drying and crushing for later use;
step 3, mixing powder sand and a dried soil sample according to the natural density and the natural water content measured in the step 1 in proportion, and preparing a cover soil body required by a test;
and 4, layering and paving the soil sample prepared in the step 3 in an internal test box 10, wherein the thickness of a soil layer is 2cm and compaction is carried out each time, the total thickness of the soil layer is determined according to the test purpose, and the optical fiber sensor and the pore fluid osmoticum score three layers are paved.
And 5, closing a gate valve of the second connecting pipe 8, injecting water into the external test box 2 through the variable-frequency water pump and the water level controller, slowly penetrating the injected water into a tested covering soil layer from micropores of the internal test box 10, opening the gate valve after the soil layer reaches a certain saturation degree, and draining the water into the water tank 3 through the second connecting pipe 8.
And 6, repeating the step 5 until all the tested covering soil layers reach saturation.
And 7, starting an air dryer, and air-drying the tested covering soil layer to solidify the soil layer.
And 8, repeating the steps 5-6, simulating the soil layer consolidation process, and forming a soil hole at the bottom.
And 9, calculating daily rainfall in the simulated area according to the test purpose, starting to implement a rainfall process, starting a water level sensor, a water pressure sensor, an optical fiber sensor, a pore fluid osmometer and video monitoring, rainfall to the test required water level, starting a gate valve of the second connecting pipe 8, discharging water in the soil layer, and collecting the soil layer.
And step 10, repeating the step 9 until the soil layer collapses.
And 11, collecting and analyzing collapse test process data of the karst collapse group, establishing a water-soil-gas functional relation, decrypting an action mechanism of the underground engineering activity induced collapse group, and providing a solution for preventing and controlling the karst ground collapse group.
It should be noted in advance that, in the present application, unless explicitly specified and limited otherwise, terms such as "mounted," "connected," "fixed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
The foregoing is merely exemplary embodiments of the present application, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present application, and these should also be considered as the scope of the present application, which does not affect the effect of the implementation of the present application and the utility of the patent. The protection scope of the present application is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (5)
1. The physical test system for simulating disaster caused by underground space development comprises a mounting frame, and is characterized by further comprising an upper test box arranged above the mounting frame, a water supply and drainage circulating system arranged at the lower part of the mounting frame, a detection control unit and a climate simulation unit, wherein the detection control unit and the climate simulation unit are arranged in the upper test box;
the upper test box comprises an outer test box for containing water and an inner test box for containing soil, the top of the outer test box is open, a first through hole is formed in the middle of the bottom surface, a plurality of inner test boxes are arranged in the outer test box, the upper ends of the inner test boxes are open, and a second through hole is formed in the bottom of the inner test boxes;
the water supply and drainage circulating system comprises a water tank, a water pump, a first connecting pipe and a first gate valve, wherein the water pump pumps water in the water tank to an external test box through the connecting pipe, a partition plate with water permeable holes or a filter screen is arranged in the water tank, the partition plate divides the water tank into four chambers, the four chambers are a first sedimentation chamber, a second sedimentation chamber, a third sedimentation chamber and a fourth sedimentation chamber in sequence, and the water pump is positioned in the fourth sedimentation chamber;
the second through holes of the internal test boxes are respectively communicated with the first sedimentation chamber through second connecting pipes, second gate valves for controlling the on-off of water flow of the connecting pipes are arranged on the second connecting pipes, karst cavities connected with the second gate valves in series are arranged on the second connecting pipes, and the karst cavities are used for collecting soil discharged from the internal test boxes;
the bottom of the karst cavity is conical, and the upper part of the karst cavity is connected with a second connecting pipe in series;
the outer test box and the inner test box are cylindrical in shape, and a plurality of the inner test boxes are tangentially arranged with the inner wall of the outer test box;
the test method is as follows:
step 1, collecting a cover layer soil sample required by a test, measuring natural density and natural water content, taking the soil sample for a direct shear test, and measuring an internal friction angle and cohesive force;
step 2, the soil sample collected in the step 1 is sent to a laboratory for drying and crushing for later use;
step 3, mixing powder sand and a dried soil sample according to the natural density and the natural water content measured in the step 1 in proportion, and preparing a cover soil body required by a test;
step 4, layering and paving the soil sample prepared in the step 3 in an internal test box, wherein the thickness of a soil layer paved each time is 2cm and compaction is carried out, the total thickness of the soil layer is determined according to the test purpose, and the optical fiber sensor and the pore fluid osmoticum score three layers are paved;
step 5, closing a gate valve of a second connecting pipe, injecting water into an external test box through a variable-frequency water pump and a water level controller, slowly penetrating the injected water into a tested covering soil layer from micropores of the internal test box, opening the gate valve after the soil layer reaches a certain saturation degree, and discharging the water into a water tank through the second connecting pipe;
step 6, repeating the step 5 until all the tested covering soil layers reach saturation;
step 7, starting an air dryer, and air-drying the tested covered soil layer to solidify the soil layer;
step 8, repeating the steps 5-6, simulating the soil layer consolidation process, and forming a soil hole at the bottom;
step 9, calculating daily rainfall in the simulated area according to the test purpose, starting to implement a rainfall process, starting each monitoring device and video monitoring, rainfall to the test required water level, starting a gate valve of a second connecting pipe, discharging water in the soil layer, and collecting the soil layer;
step 10, repeating the step 9 until the soil layer collapses;
and 11, collecting and analyzing collapse test process data of the karst collapse group, and establishing a water-soil-gas functional relation.
2. The physical test system for simulating underground space development disaster causing according to claim 1, wherein the detection control unit comprises a monitoring unit, a control unit and a video system, the monitoring unit comprises an optical fiber sensor for monitoring soil deformation, a pressure pore fluid osmometer for monitoring water pressure in a soil pore, and a water-air pressure monitor for monitoring water air pressure in a karst cavity, the control unit comprises computer terminal software, a timer, a water level monitor and a rain gauge, the computer terminal software is in signal connection with the monitoring unit, the timer is used for controlling rainfall and sunshine time, the water level monitor is used for controlling test water level, the rain gauge is used for controlling single rainfall, the video system comprises a high-definition camera, and is used for shooting test process and result, and providing a video for reproducing occurrence, development and total process of karst ground group.
3. The physical test system for simulating disaster development in underground space according to claim 1, wherein the climate simulation unit comprises a pressure water accumulation rainfall device and an air dryer, the water inlet end of the pressure water accumulation rainfall device is connected with the water outlet end of a water pump in the water supply and drainage system, and the other end of the pressure water accumulation rainfall device is positioned right above the upper test box.
4. The physical test system for simulating disaster development in an underground space according to claim 1, wherein a partition plate between the first sedimentation chamber and the second sedimentation chamber, a partition plate between the second sedimentation chamber and the third sedimentation chamber, and a partition plate between the third sedimentation chamber and the fourth sedimentation chamber are all provided with filter layers, and the filter layers cover the permeable Kong Quanfu on the partition plates.
5. The physical testing system for simulating disaster development in an underground space according to claim 1, wherein the outer test chamber, the inner test chamber, the water tank and the karst cavity are all made of transparent materials.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847348A (en) * | 2012-08-03 | 2013-01-02 | 福建圣达科技环保设备有限公司 | Dedusting desulfuration circular circulation sedimentation basin |
| CN105572319A (en) * | 2015-12-11 | 2016-05-11 | 河海大学 | Hydraulic-induced covered karst collapse simulation testing device and using method |
| CN206863024U (en) * | 2017-05-23 | 2018-01-09 | 福州大学 | One kind simulation multi- scenarios method karst guided collapse device |
| CN110044710A (en) * | 2019-05-09 | 2019-07-23 | 中国科学院武汉岩土力学研究所 | Soil cave collapse experiment simulator under a kind of precipitation funnel |
| CN210251527U (en) * | 2019-06-23 | 2020-04-07 | 湖南省第六工程有限公司 | Green circulating water tank device of construction |
| CN111122830A (en) * | 2020-01-09 | 2020-05-08 | 山东大学 | Covering type karst collapse simulation test device and operation method thereof |
| CN111239370A (en) * | 2020-04-03 | 2020-06-05 | 辽宁工程技术大学 | Experimental method for simulating karst collapse caused by underground water |
| CN111715432A (en) * | 2020-07-14 | 2020-09-29 | 中国科学院地理科学与资源研究所 | Circulating rainfall simulation experiment system |
-
2021
- 2021-06-18 CN CN202110675987.7A patent/CN113588913B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847348A (en) * | 2012-08-03 | 2013-01-02 | 福建圣达科技环保设备有限公司 | Dedusting desulfuration circular circulation sedimentation basin |
| CN105572319A (en) * | 2015-12-11 | 2016-05-11 | 河海大学 | Hydraulic-induced covered karst collapse simulation testing device and using method |
| CN206863024U (en) * | 2017-05-23 | 2018-01-09 | 福州大学 | One kind simulation multi- scenarios method karst guided collapse device |
| CN110044710A (en) * | 2019-05-09 | 2019-07-23 | 中国科学院武汉岩土力学研究所 | Soil cave collapse experiment simulator under a kind of precipitation funnel |
| CN210251527U (en) * | 2019-06-23 | 2020-04-07 | 湖南省第六工程有限公司 | Green circulating water tank device of construction |
| CN111122830A (en) * | 2020-01-09 | 2020-05-08 | 山东大学 | Covering type karst collapse simulation test device and operation method thereof |
| CN111239370A (en) * | 2020-04-03 | 2020-06-05 | 辽宁工程技术大学 | Experimental method for simulating karst collapse caused by underground water |
| CN111715432A (en) * | 2020-07-14 | 2020-09-29 | 中国科学院地理科学与资源研究所 | Circulating rainfall simulation experiment system |
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