CN110716030A - Karst collapse multi-parameter monitoring and early warning test system - Google Patents
Karst collapse multi-parameter monitoring and early warning test system Download PDFInfo
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Abstract
The invention discloses a karst collapse multi-parameter monitoring and early warning test system which comprises a karst collapse simulation system, an underground water parameter monitoring system and a soil body deformation monitoring system, wherein the karst collapse simulation system comprises a box body and a karst pipeline simulation system, the box body is divided into a water inlet box, a soil box and a water drainage box, and a through hole is formed in the bottom end face of the soil box; the karst pipeline simulation system is established according to the actual situation of exploration or karst collapse examples and comprises a simulated karst cave, simulated karst pipelines communicated with the simulated cave, a water inlet pipe and a water outlet pipe, wherein the simulated cave is communicated with through holes in the soil box through the simulated karst pipelines; the underground water parameter monitoring system comprises various monitoring devices for monitoring underground water index parameters, and probes of the monitoring devices are respectively arranged at preset measuring positions in the karst pipeline simulation system; the soil body deformation monitoring system comprises optical fibers arranged in an undisturbed soil sample and an optical fiber strain monitoring device. The system has high early warning precision on karst collapse.
Description
Technical Field
The invention relates to a karst collapse multi-parameter monitoring and early warning test system, and belongs to the technical field of prevention and treatment of geological disasters caused by karst collapse.
Background
Karst collapse is one of main geological disasters in a karst area, has the characteristics of concealment, outburst, repeatability and the like, is an important link in the karst collapse prevention and control process for monitoring and early warning, and is one of the world-level technical problems which are not overcome in the field of earth science at present. The formation of karst collapse is the result of the comprehensive superposition effect of rock, soil, water and human activities, has a plurality of influence factors and very complex evolution process, comprises various effects such as underground water corrosion, chemical corrosion, vacuum absorption corrosion, mechanical vibration and the like, and each effect can generate deformation damage influence on rock and soil bodies and is accompanied with geological phenomena. In the underground water corrosion action process, parameters such as underground water fluctuation amplitude, frequency, water flow speed, turbidity and the like can reflect the deformation and damage conditions of rock and soil bodies; in the chemical corrosion process, parameters such as anions, cations, Total Dissolved Solids (TDS) and the like of soil and underground water are greatly changed; in the mechanical vibration action process, parameters such as vibration amplitude, frequency and vibration mode also have good corresponding relation with the deformation of the rock-soil body. Therefore, to improve the accuracy and level of karst collapse monitoring and early warning, multi-parameter monitoring and early warning work needs to be carried out.
Disclosure of Invention
The invention aims to solve the technical problem of providing a karst collapse multi-parameter monitoring and early warning test system with higher early warning precision.
The invention relates to a karst collapse multi-parameter monitoring and early warning test system, which comprises a karst collapse simulation system, a groundwater parameter monitoring system and a soil body deformation monitoring system, and is characterized in that:
the karst simulation system that collapses include a box and karst pipeline simulation system, wherein:
the water inlet tank, the soil tank and the water drainage tank realize mutual circulation of liquid through water through holes in the water permeable partition plates; the soil box is used for filling an undisturbed soil sample, and a through hole is formed in the bottom end face of the soil box;
the karst pipeline simulation system is established according to actual conditions of exploration or karst collapse examples and mainly comprises a simulated karst cave, simulated karst pipelines communicated with the simulated karst cave, a water inlet pipe and a water outlet pipe for providing water inlet and drainage for the simulated karst pipelines, valves and pressure gauges are arranged on the water inlet pipe and the water outlet pipe, and the valves are arranged on the simulated karst pipelines as required to control the on-off of water flow; the simulated karst cave is communicated with the through hole on the bottom end face of the soil box through a simulated karst pipeline;
the underground water parameter monitoring system comprises an underground water level monitoring device, an underground water flow rate monitoring device, an underground water turbidity monitoring device and an underground water chemical monitoring device, wherein probes of the monitoring devices are respectively arranged at preset measuring positions in the karst pipeline simulation system;
the soil body deformation monitoring system comprises optical fibers arranged in an undisturbed soil sample in the soil box and an optical fiber strain monitoring device for monitoring the strain of the optical fibers.
In the technical scheme, the underground water parameter monitoring system preferably comprises two sets of underground water level monitoring devices, two sets of underground water flow velocity monitoring devices, an underground water turbidity monitoring device and an underground water chemical monitoring device, wherein a probe of one set of the underground water level monitoring device and a probe of the underground water flow velocity monitoring device are arranged in a simulated karst pipeline which is at the same horizontal position as a simulated karst cave, and the probe of the underground water turbidity monitoring device and the probe of the underground water chemical monitoring device are arranged in the simulated karst pipeline below the probes of the underground water level monitoring devices and the probes of the underground water flow velocity monitoring devices; the probe of the other set of underground water level monitoring device and the probe of the underground water flow velocity monitoring device are arranged in front of the water outlet end of the drain pipe. Probes of an underground water level monitoring device and an underground water flow velocity monitoring device are arranged in a simulated karst pipeline of the simulated karst cave on the same horizontal position, so that various monitoring data such as water pressure, water flow velocity and the like on the same runoff as the simulated karst cave are effectively monitored; the probes of the underground water turbidity monitoring device and the underground water chemical monitoring device are arranged in the simulated karst pipeline below the probes of the underground water level monitoring device and the underground water flow rate monitoring device (namely arranged in the simulated karst pipeline which is deeper from the ground surface than the probes of the underground water level monitoring device and the underground water flow rate monitoring device) so as to measure the turbidity, TDS, conductivity, various ion concentrations and other related indexes of the water body after being influenced by rock erosion and soil deformation and damage, and the indexes are used for subsequent comparative analysis.
In the above technical solution, the groundwater level monitoring device, the groundwater flow velocity monitoring device, the groundwater turbidity monitoring device and the groundwater chemical monitoring device are conventional choices in the prior art, specifically, the groundwater level monitoring device may be a 3001 type Edge water level recorder of Solinst, canada, the groundwater flow velocity monitoring device may be a 600 type acoustic doppler flow velocity measuring instrument of the U.S. Flowstar, the groundwater turbidity monitoring device may be a Turb2000 type online turbidity analyzer of the germany WTW, and the groundwater chemical monitoring device may be an MS6100 type multi-parameter water quality online analyzer of the HACH.
In the technical scheme, the number of the optical fibers is set as required, and the optical fibers are respectively embedded in undisturbed soil samples at different depths in the soil box to obtain deformation data of the undisturbed soil samples at different positions; the optical fiber strain monitoring device can be a BOTDR optical fiber strain tester of Japan Ampelopsis.
Among the above-mentioned technical scheme, in order to adjust business turn over karst pipeline analog system's pressure differential, preferred drain pipe is vertical setting, is provided with a plurality of branch drain pipes respectively on it to all set up valve and manometer on each branch drain pipe, divide the drain pipe through controlling different and carry out the regulation of drainage in order to realize business turn over karst pipeline analog system pressure differential.
Because the karst collapse multiparameter monitoring and early warning test system is used for actual monitoring, the karst pipeline simulation system is established according to the actual situation of investigation or the karst collapse example, in a specific implementation example, the karst pipeline simulation system comprises a simulation karst cave, a first simulation karst pipeline, a second simulation karst pipeline, a third simulation karst pipeline and a fourth simulation karst pipeline which are communicated with the simulation karst cave, a sixth simulation karst pipeline which is communicated with the second simulation karst pipeline, and a seventh simulation karst pipeline which is communicated with the second simulation karst pipeline; wherein the content of the first and second substances,
the first simulated karst pipeline is communicated with the through hole on the bottom end face of the soil box, and the second simulated karst pipeline and the third simulated karst pipeline are positioned on the same horizontal position as the simulated karst cave;
the second simulated karst pipeline, the third simulated karst pipeline and the fourth simulated karst pipeline pass through
A fifth simulated karst pipeline forming a loop, the fifth simulated karst pipeline being located below the second and third simulated karst pipelines;
the sixth simulated karst pipeline is parallel to the first simulated karst pipeline, and the seventh simulated karst pipeline is parallel to the second simulated karst pipeline and the third simulated karst pipeline;
the third simulated karst pipeline is connected with the water inlet pipe, and the seventh simulated karst pipeline is connected with the water outlet pipe;
the second simulated karst pipeline, the third simulated karst pipeline and the fourth simulated karst pipeline are respectively provided with a valve; and the fifth simulated karst pipeline is provided with two valves, and the two valves are respectively arranged at the positions close to the joint of the fifth simulated karst pipeline and the second simulated karst pipeline and the third simulated karst pipeline.
In the above specific embodiment, the probes of one set of the groundwater level monitoring device and the groundwater flow speed monitoring device in the groundwater parameter monitoring system are arranged in the third simulated karst pipeline, the probes of the other set of the groundwater level monitoring device and the groundwater flow speed monitoring device are arranged in the seventh simulated karst pipeline, and the probe of the groundwater turbidity monitoring device and the probe of the groundwater chemical monitoring device are arranged in the fifth simulated karst pipeline.
Compared with the prior art, the system provided by the invention can be used for monitoring the soil deformation damage in multiple directions and the influence of the soil deformation damage on the underground karst cave, the karst pipeline and the underground water so as to obtain multiple index parameters, and further analyzing the multiple index parameters to obtain a comprehensive early warning threshold value so as to realize early warning and forecasting on karst collapse. The system structure is simplified, more index parameters can be obtained, and therefore the early warning precision of karst collapse monitoring and early warning work is greatly improved, and the system has important significance for improving the prevention and control level of karst collapse and enriching and perfecting a karst collapse research and application system.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the karst collapse multiparameter monitoring and early warning test system of the present invention.
The reference numbers in the figures are:
1 drainage box, 2 baffle that permeates water, 3 soil box, 4 water tanks, 5 groundwater parameter monitoring system, 6 optic fibre strain monitoring devices, 7 valves, 8 manometer, 9 inlet tubes, 10 groundwater level monitoring devices's probe, 11 groundwater velocity monitoring devices' probe, 12 third simulation karst pipeline, 13 groundwater chemistry monitoring devices 'probe, 14 simulation karst cave, 15 fourth simulation karst pipeline, 16 fifth simulation karst pipeline, 17 groundwater turbidity monitoring devices' probe, 18 supports, 19 second simulation karst pipeline, 20 first simulation karst pipeline, 21 through-hole, 22 optic fibre, 23 original state soil sample, 24 sixth simulation karst pipeline, 25 seventh simulation karst pipeline, 26 drain pipes, 27 minute drain pipes.
Detailed Description
The present invention will be better understood from the following detailed description taken in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments.
As shown in figure 1, the karst collapse multi-parameter monitoring and early warning test system comprises a karst collapse simulation system, a groundwater parameter monitoring system 5 and a soil body deformation monitoring system, and is characterized in that:
the karst simulation system that collapses include a box and karst pipeline simulation system, wherein:
the box body is an open box body and is fixed on the support 18, two water-permeable partition plates 2 are arranged in the box body to divide the box body into a water inlet box 4, a soil box 3 and a water drainage box 1, wherein the soil box 3 is positioned between the water inlet box 4 and the water drainage box 1, and the water inlet box 4, the soil box 3 and the water drainage box 1 realize mutual circulation of liquid through water-permeable holes in the water-permeable partition plates 2; the soil box 3 is used for filling an undisturbed soil sample 23, a through hole 21 is formed in the bottom end face of the soil box 3, and the through hole 21 is used for simulating an opening of a karst cave;
the karst pipeline simulation system mainly comprises a simulated karst cave 14, simulated karst pipelines communicated with the simulated karst cave 14, a water inlet pipe 9 and a water outlet pipe 26 for providing water inlet and outlet for the simulated karst pipelines, wherein,
a valve 7 and a pressure gauge 8 are arranged on the water inlet pipe 9;
the drainage pipe 26 is longitudinally arranged, three branch drainage pipes 27 are respectively arranged on the drainage pipe 26, a valve 7 and a pressure gauge 8 are respectively arranged on each branch drainage pipe 27, and the regulation of the pressure difference of the simulation system of the inlet and outlet karst pipeline is realized by controlling the drainage of different branch drainage pipes 27;
each simulated karst pipeline communicated with the simulated karst cave 14 comprises a first simulated karst pipeline 20, a second simulated karst pipeline 19, a third simulated karst pipeline 12 and a fourth simulated karst pipeline 15 communicated with the simulated karst cave 14, a sixth simulated karst pipeline 24 communicated with the second simulated karst pipeline 19, and a seventh simulated karst pipeline 25 communicated with the second simulated karst pipeline 19; wherein, the first simulated karst pipeline 20 is communicated with a through hole 21 on the bottom end surface of the soil box 3, and the second simulated karst pipeline 19 and the third simulated karst pipeline 12 are positioned at the same horizontal position with the simulated karst cave 14; the second simulated karst pipeline 19, the third simulated karst pipeline 12 and the fourth simulated karst pipeline 15 form a loop through a fifth simulated karst pipeline 16, and the fifth simulated karst pipeline 16 is positioned below the second simulated karst pipeline 19 and the third simulated karst pipeline 12; the sixth simulated karst pipeline 24 is parallel to the first simulated karst pipeline 20, and the seventh simulated karst pipeline 25 is parallel to the second simulated karst pipeline 19 and the third simulated karst pipeline 12; the third simulated karst pipeline 12 is connected with the water inlet pipe 9, and the seventh simulated karst pipeline 25 is connected with the water outlet pipe 26; the second simulated karst pipeline 19, the third simulated karst pipeline 12 and the fourth simulated karst pipeline 15 are respectively provided with a valve 7; the fifth simulated karst pipeline 16 is provided with two valves 7, and the arrangement positions of the two valves 7 are respectively close to the connection position with the second simulated karst pipeline 19 and close to the connection position with the third simulated karst pipeline 12;
the underground water parameter monitoring system 5 comprises an underground water level monitoring device, an underground water flow rate monitoring device, an underground water turbidity monitoring device and an underground water chemical monitoring device, wherein probes of the monitoring devices are respectively arranged at preset measuring positions in the karst pipeline simulation system;
the underground water parameter monitoring system 5 comprises two sets of underground water level monitoring devices, two sets of underground water flow rate monitoring devices, and one set of underground water turbidity monitoring device and one set of underground water chemical monitoring device respectively, wherein a probe 10 of one set of underground water level monitoring device and a probe 11 of the underground water flow rate monitoring device are arranged in a third simulated karst pipeline 12, and a probe 10 of the other set of underground water level monitoring device and a probe 11 of the underground water flow rate monitoring device are arranged in a seventh simulated karst pipeline 25; the probe 17 of the underground water turbidity monitoring device and the probe 13 of the underground water chemical monitoring device are arranged in the fifth simulated karst pipeline 16;
the soil body deformation monitoring system comprises three optical fibers 22 arranged in an original soil sample 23 in a soil box 3 and an optical fiber strain monitoring device 6 for monitoring the strain of the optical fibers 22.
In the above embodiment, the groundwater level monitoring device is a 3001 type Edge level recorder of Solinst, canada, the groundwater flow speed monitoring device is a 600 type acoustic doppler flow speed measuring instrument of Flowstar, the groundwater turbidity monitoring device is a Turb2000 type online turbidity analyzer of WTW, germany, the groundwater chemistry monitoring device is an MS6100 type multi-parameter water quality online analyzer of HACH, and the optical fiber strain monitoring device 6 is a BOTDR optical fiber strain tester of tianteng.
For the convenience of experimental observation, except that the main body support 18 is made of metal material (such as stainless steel), other structures such as a box body and a karst pipeline simulation system are made of transparent material. The connection points in the device according to the invention need to be checked for gas and liquid tightness.
The specific operation of the system of the present invention is as follows:
1) before the test, firstly, the undisturbed soil body of the field subsidence area is obtained, or the mixture ratio is remolded according to the soil body of the subsidence area, the undisturbed soil sample 23 is manufactured, the undisturbed soil sample 23 is put into the soil box 3 according to the conventional rule, and meanwhile, the optical fibers 22 for monitoring the deformation and the damage of the soil body are buried at different positions of the soil body.
2) And then injecting water into the water inlet tank 4 in stages until the water level in the drainage tank 1 and the water level of the drainage tank 1 are in a balanced state, and simulating the actual underground water level of the fourth system in the field. The probes of the monitoring devices are respectively placed at preset positions, water is injected into the water inlet pipe 9, the underground water level in the water discharge pipe 26 and the water level of the water inlet pipe 9 are kept in a balanced state, and karst underground water under natural conditions is simulated.
3) During the test, the water gushing or pumping process is simulated by controlling the opening and closing and the flow of each branch drainage pipe 27 on the drainage pipe 26, and the readings of each monitoring instrument are obtained in real time at the same time until the soil body is deformed and damaged to form a soil cave and collapse.
4) And finally, acquiring a comprehensive early warning threshold value of karst collapse multi-parameter monitoring by analyzing the corresponding relation between the index parameters obtained by monitoring and the soil deformation destruction stage, and realizing early warning and forecasting of karst collapse.
Claims (6)
1. Karst multiparameter monitoring early warning test system that sinks, including karst analog system that sinks, groundwater parameter monitoring system (5) and soil body deformation monitoring system, its characterized in that:
the karst simulation system that collapses include a box and karst pipeline simulation system, wherein:
the water-permeable soil-filled water tank is characterized in that two water-permeable partition plates (2) are arranged in the tank body to divide the tank body into a water inlet tank (4), a soil tank (3) and a water drainage tank (1), wherein the soil tank (3) is positioned between the water inlet tank (4) and the water drainage tank (1), and the water inlet tank (4), the soil tank (3) and the water drainage tank (1) realize mutual circulation of liquid through water-permeable holes in the water-permeable partition plates (2); the soil box (3) is used for filling an undisturbed soil sample (23), and a through hole (21) is formed in the bottom end face of the soil box (3);
the karst pipeline simulation system is established according to actual conditions of exploration or karst collapse examples and mainly comprises a simulated karst cave (14), simulated karst pipelines communicated with the simulated karst cave (14), a water inlet pipe (9) and a water outlet pipe (26) for providing water inlet and outlet for the simulated karst pipelines, valves (7) and pressure gauges (8) are arranged on the water inlet pipe (9) and the water outlet pipe (26), and the valves (7) are arranged on the simulated karst pipelines as required to control the on-off of water flow; the simulated karst cave (14) is communicated with a through hole (21) on the bottom end face of the soil box (3) through a simulated karst pipeline;
the underground water parameter monitoring system (5) comprises an underground water level monitoring device, an underground water flow velocity monitoring device, an underground water turbidity monitoring device and an underground water chemical monitoring device, wherein probes of the monitoring devices are respectively arranged at preset measuring positions in the karst pipeline simulation system;
the soil body deformation monitoring system comprises an optical fiber (22) arranged in an original soil sample (23) in a soil box (3) and an optical fiber strain monitoring device (6) for monitoring the strain of the optical fiber (22).
2. The karst collapse multiparameter monitoring and early warning test system as recited in claim 1, wherein: the underground water parameter monitoring system (5) comprises two sets of underground water level monitoring devices, two sets of underground water flow rate monitoring devices, an underground water turbidity monitoring device and an underground water chemical monitoring device, wherein a probe (10) of one set of underground water level monitoring device and a probe (11) of the underground water flow rate monitoring device are arranged in a simulated karst pipeline which is positioned on the same horizontal position with a simulated karst cave (14), and a probe (17) of the underground water turbidity monitoring device and a probe (13) of the underground water chemical monitoring device are both arranged in the simulated karst pipeline below the probe (10) of the underground water level monitoring device and the probe (11) of the underground water flow rate monitoring device; the probe (10) of another set of underground water level monitoring device and the probe (11) of the underground water flow rate monitoring device are arranged in front of the water outlet end of the drain pipe (26).
3. The karst collapse multiparameter monitoring and early warning test system as recited in claim 1, wherein: the number of the optical fibers (22) is set according to the requirement, and the optical fibers are respectively buried in undisturbed soil samples (23) with different depths in the soil box (3).
4. The karst collapse multiparameter monitoring and early warning test system as recited in claim 1, wherein: the water discharge pipe (26) is longitudinally arranged, a plurality of sub-water discharge pipes (27) are respectively arranged on the water discharge pipe (26), and a valve (7) and a pressure gauge (8) are arranged on each sub-water discharge pipe (27).
5. The karst collapse multiparameter monitoring and early warning test system as claimed in any one of claims 1 to 4, wherein: the karst pipeline simulation system comprises a simulation karst cave (14), a first simulation karst pipeline (20), a second simulation karst pipeline (19), a third simulation karst pipeline (12) and a fourth simulation karst pipeline (15) which are communicated with the simulation karst cave (14), a sixth simulation karst pipeline (24) which is communicated with the second simulation karst pipeline (19), and a seventh simulation karst pipeline (25) which is communicated with the second simulation karst pipeline (19); wherein the content of the first and second substances,
the first simulated karst pipeline (20) is communicated with a through hole (21) on the bottom end face of the soil box (3), and the second simulated karst pipeline (19) and the third simulated karst pipeline (12) are positioned on the same horizontal position with the simulated karst cave (14);
the second simulated karst pipeline (19), the third simulated karst pipeline (12) and the fourth simulated karst pipeline (15) form a loop through a fifth simulated karst pipeline (16), and the fifth simulated karst pipeline (16) is positioned below the second simulated karst pipeline (19) and the third simulated karst pipeline (12);
the sixth simulated karst pipeline (24) is parallel to the first simulated karst pipeline (20), and the seventh simulated karst pipeline (25) is parallel to the second simulated karst pipeline (19) and the third simulated karst pipeline (12);
the third simulated karst pipeline (12) is connected with the water inlet pipe (9), and the seventh simulated karst pipeline (25) is connected with the water outlet pipe (26).
6. The karst collapse multiparameter monitoring and early warning test system as recited in claim 5, wherein: one set of the probe (10) of the underground water level monitoring device and the probe (11) of the underground water flow rate monitoring device are arranged in a third simulated karst pipeline (12), the probe (10) of the other set of the underground water level monitoring device and the probe (11) of the underground water flow rate monitoring device are arranged in a seventh simulated karst pipeline (25), and the probe (17) of the underground water turbidity monitoring device and the probe (13) of the underground water chemical monitoring device are arranged in a fifth simulated karst pipeline (16).
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112330927A (en) * | 2020-11-09 | 2021-02-05 | 中国地质科学院岩溶地质研究所 | Multi-parameter integrated karst collapse monitoring and early warning device and working method thereof |
| CN112393707A (en) * | 2020-11-17 | 2021-02-23 | 中国地质科学院岩溶地质研究所 | Shallow soil cave recognition early warning device and using method thereof |
| CN112946778A (en) * | 2021-01-29 | 2021-06-11 | 中国地质科学院岩溶地质研究所 | Method for early warning karst collapse based on underground water turbidity monitoring |
| CN113324617A (en) * | 2021-05-12 | 2021-08-31 | 中国地质科学院水文地质环境地质研究所 | Underground water on-line monitoring and early warning system and method for expansive and contractible soil environment |
| CN113447634A (en) * | 2021-05-10 | 2021-09-28 | 武汉科技大学 | Karst analogue means that sinks |
| CN113565488A (en) * | 2021-07-30 | 2021-10-29 | 中国地质科学院岩溶地质研究所 | Karst collapse development target area selection method based on drilling base rock surface fracture network simulation |
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2019
- 2019-11-18 CN CN201911127578.2A patent/CN110716030A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112330927A (en) * | 2020-11-09 | 2021-02-05 | 中国地质科学院岩溶地质研究所 | Multi-parameter integrated karst collapse monitoring and early warning device and working method thereof |
| CN112393707A (en) * | 2020-11-17 | 2021-02-23 | 中国地质科学院岩溶地质研究所 | Shallow soil cave recognition early warning device and using method thereof |
| CN112946778A (en) * | 2021-01-29 | 2021-06-11 | 中国地质科学院岩溶地质研究所 | Method for early warning karst collapse based on underground water turbidity monitoring |
| CN112946778B (en) * | 2021-01-29 | 2022-05-03 | 中国地质科学院岩溶地质研究所 | Method for early warning karst collapse based on underground water turbidity monitoring |
| CN113447634A (en) * | 2021-05-10 | 2021-09-28 | 武汉科技大学 | Karst analogue means that sinks |
| CN113324617A (en) * | 2021-05-12 | 2021-08-31 | 中国地质科学院水文地质环境地质研究所 | Underground water on-line monitoring and early warning system and method for expansive and contractible soil environment |
| CN113324617B (en) * | 2021-05-12 | 2022-10-14 | 中国地质科学院水文地质环境地质研究所 | Underground water on-line monitoring and early warning system and method for expansive and contractible soil environment |
| CN113565488A (en) * | 2021-07-30 | 2021-10-29 | 中国地质科学院岩溶地质研究所 | Karst collapse development target area selection method based on drilling base rock surface fracture network simulation |
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