CN110987363B - Test system for simulating deformation and damage of top plate of aquifer caused by recharging well water - Google Patents
Test system for simulating deformation and damage of top plate of aquifer caused by recharging well water Download PDFInfo
- Publication number
- CN110987363B CN110987363B CN201911323705.6A CN201911323705A CN110987363B CN 110987363 B CN110987363 B CN 110987363B CN 201911323705 A CN201911323705 A CN 201911323705A CN 110987363 B CN110987363 B CN 110987363B
- Authority
- CN
- China
- Prior art keywords
- water
- aquifer
- recharging
- top plate
- recharging well
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 45
- 230000006378 damage Effects 0.000 title claims abstract description 23
- 239000002349 well water Substances 0.000 title claims abstract description 18
- 235000020681 well water Nutrition 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 178
- 239000002689 soil Substances 0.000 claims abstract description 45
- 239000000725 suspension Substances 0.000 claims abstract description 43
- 238000004088 simulation Methods 0.000 claims abstract description 13
- 238000012544 monitoring process Methods 0.000 claims abstract description 12
- 230000001105 regulatory effect Effects 0.000 claims abstract description 6
- 229920001971 elastomer Polymers 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 10
- 238000013480 data collection Methods 0.000 claims description 6
- 239000004927 clay Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000003086 colorant Substances 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003673 groundwater Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 10
- 230000008859 change Effects 0.000 description 9
- 230000001276 controlling effect Effects 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012443 analytical study Methods 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036619 pore blockages Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229940099259 vaseline Drugs 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/40—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for geology
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Algebra (AREA)
- Mathematical Analysis (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Paleontology (AREA)
- Fluid Mechanics (AREA)
- Computational Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention provides a test system for simulating deformation and damage of a top plate of an aquifer caused by recharging well water, which comprises an aquifer simulation unit, a recharging condition control unit and a test monitoring unit, wherein the simulation unit is used for simulating the deformation and damage of the top plate of the aquifer; the aquifer simulation unit comprises a transparent model box and a recharging well pipe, wherein the model box is internally provided with an aquifer and a soil top plate, and the recharging well pipe is inserted into the soil top plate and extends into the aquifer; the recharging condition control unit comprises a suspension control device and a water head regulating device, wherein the suspension control device comprises a suspension control chamber and an air compressor, the suspension control chamber is respectively connected with the air compressor and a recharging well pipe, and the water head regulating device comprises a water inlet water head controller and a water outlet water head controller; the test monitoring unit comprises a plurality of strain gauges arranged in the soil top plate and a plurality of water head height observers. The invention has the beneficial effects that: and simulating damage to the soil roof caused by excessive pressure of the underground recharging water, and researching physical blockage problems and a failure mechanism of the water-bearing roof caused by blockage.
Description
Technical Field
The invention relates to the technical field of groundwater recharge, in particular to a test system for simulating deformation and damage of a top plate of an aquifer caused by well water recharge.
Background
The development and utilization of the geothermal energy of the underground water are mainly suitable for areas with rich underground water, and the underground water ground source heat pump system is generally adopted for development and utilization, and the adopted heat extraction technology can be divided into closed type and open type, wherein the closed type is to embed an underground pipe into the underground water, and the underground water is not extracted for heat exchange; the open type ground water source heat pump system directly extracts the ground water, and according to the utilization principle of 'taking heat without taking water' of the ground water geothermal energy, how much ground water is extracted needs recharging, so that the problems of ground water exhaustion, ground collapse and the like caused by excessive ground water utilization are prevented. In fact, many uncertainty factors occur in the process of recharging groundwater, so that recharging efficiency is low and recharging effect is poor.
The most common problem of groundwater recharging is the blockage problem caused by recharging, and the recharging blockage can be divided into physical blockage, chemical blockage and biological blockage according to different blockage modes, wherein the physical blockage is caused by the fact that the recharging water contains a large amount of suspended fine particles and is adhered to fine pores in an aquifer in the recharging process; the chemical blockage is mainly that the reinjection water contains a large amount of metal cations, and chemical reaction occurs in an aquifer so as to cause pore blockage; the biological blockage is caused by the blockage near the recharging well due to the breeding of microorganisms in the recharging water. The direct result of the blockage of the aquifer is that the pressure of the aquifer is unbalanced in the recharging process, the structure of the aquifer is damaged due to the overlarge pressure, and the ground near the recharging well is settled.
Secondly, the stress of the water-proof top plate is uneven due to the fact that the recharging water pressure is too high in the recharging process of the underground water, so that the ground is raised and damaged, the use risk of the underground water source heat pump system is increased, and the later operation and maintenance cost of the heat pump is increased.
The influence of various uncertainty factors on recharging in the recharging process is accurately mastered, so that the method has great help to guide actual groundwater recharging, three modes of field test, numerical simulation and indoor model test are generally adopted for research, and the field test is more suitable for the actual situation but needs a great deal of time and money, so that the method is not cost-effective to use; the numerical simulation mode is simple, but the simulated condition can not truly reflect the basic condition, and the indoor model exactly combines the two conditions, thereby greatly helping research work.
The existing stage has less researches on the blockage of the groundwater recharge system, wherein a patent document CN204831748U discloses a full-automatic groundwater recharge blockage experimental device; patent document CN203905903U discloses a dosing device for preventing clogging of groundwater recharge; patent document CN204873911U discloses a groundwater recharge device for preventing gas phase blockage. The patent is mainly directed to the recharging technology, the simulation of recharging wells and the invention of recharging blockage, and less researches are carried out on test device instruments for the structural change of the aquifer caused in the process of recharging groundwater.
Disclosure of Invention
In order to study the problems of deformation and damage of a water-proof top plate of an aquifer caused by blockage of the aquifer in a recharging well and excessive recharging pressure, the embodiment of the invention provides a test system for simulating deformation and damage of the top plate of the aquifer caused by recharging well water.
The embodiment of the invention provides a test system for simulating deformation and damage of a top plate of an aquifer caused by recharging well water, which comprises an aquifer simulation unit, a recharging condition control unit and a test monitoring unit;
The aquifer simulation unit comprises a transparent model box and a recharging well pipe, wherein an aquifer is arranged at the bottom in the model box, a soil top plate is arranged on the aquifer, the soil top plate comprises a plurality of layers of stacked soil layers with different colors, the recharging well pipe is inserted into the soil top plate and extends into the aquifer, and the part of the recharging well pipe, which is positioned in the aquifer, is a flower pipe section;
The recharging condition control unit comprises a suspension control device and a water head regulating device, wherein the suspension control device comprises a suspension control chamber and an air compressor, the suspension control chamber is respectively connected with the air compressor and the recharging well pipe, the suspension control chamber is internally used for storing suspension with colored particles, and the water head regulating device comprises a water inlet water head controller and a water outlet water head controller which are respectively connected with two side walls of the aquifer;
The test monitoring unit comprises a plurality of strain gauges and a plurality of water head height observers, wherein the strain gauges are arranged in the soil top plate, and each water head height observer is connected into the water-containing layer.
Further, each water head height observer comprises a rubber conduit, a scale tube and a laser range finder, one end of the rubber conduit is connected into the water-bearing layer in the model box, the other end of the rubber conduit is connected with the lower end of the scale tube, the upper ends of the scale tubes are aligned with the laser range finder, and the scale tubes of all the water head height observers are vertically fixed on the observation plate.
Further, the device also comprises a data collection and arrangement unit, wherein the data collection and arrangement unit comprises a high-speed camera, a computer, a strain receiver and a water head height receiver, wherein the strain receiver and the water head height receiver are respectively connected with the computer, the high-speed camera is arranged on one side of the model box, the strain receiver is respectively connected with all strain gauges, and the water head height receiver is respectively connected with all laser distance measuring devices.
Further, the outer wall of the model box is provided with a plurality of test holes communicated with the aquifer, and all the test holes are arranged at equal heights.
Further, all strain gauges are respectively arranged in each layer of soil layer of the soil-made top plate, a plurality of strain gauges are arranged in each soil layer at equal heights, and the strain gauges between two adjacent layers of soil layers are in one-to-one correspondence up and down.
Further, the suspension control chamber is connected with the recharging well pipe through a liquid injection conduit, a stirrer is arranged in the suspension control chamber, a liquid injection valve and a flowmeter are arranged on the liquid injection conduit, the air compressor is connected with the suspension control chamber through a gas conduit, and the gas conduit is provided with a gas valve.
Further, the water inlet water head controller is fixed on the control console, the water inlet water head controller is connected with the model box through a water inlet pipe and is connected with the water-bearing layer, and the arrangement mode of the water inlet water head controller is the same as that of the water inlet water head controller.
Further, two buffer areas protruding outwards are arranged at the bottom of the model box, the two buffer areas are respectively a water inlet buffer area and a water outlet buffer area, a water inlet filter screen is arranged between the two adjacent water-bearing layers on one side of the water inlet buffer area, and the other side of the water inlet buffer area is connected with the water inlet guide pipe; one side of the water outlet buffer area is adjacent to the water-bearing layer, a water outlet filter screen is arranged between the two water outlet buffer areas, the other side of the water outlet buffer area is connected with a water outlet guide pipe, and the water outlet guide pipe is connected with the water outlet water head controller.
Further, a clay layer is arranged between the outer wall of the recharging well pipe and the soil top plate, and a recharging filter material is arranged between the outer wall of the flower pipe section of the recharging well pipe and the water-bearing layer.
Further, the bottom of the model box is provided with an LED light source.
The technical scheme provided by the embodiment of the invention has the beneficial effects that: according to the test system for simulating deformation and damage of the top plate of the aquifer caused by well water recharging, the aquifer, the soil top plate and the recharging well pipe are arranged in the model box, the underground water recharging process is simulated, the suspension concentration in recharging water in the recharging well pipe is controlled by the suspension control device to study the physical blockage problem of the underground water recharging, and meanwhile, the damage mechanism of the top plate of the aquifer caused by recharging blockage can be studied; the water-bearing layer recharging pressure can be controlled through the water inlet water head controller and the water outlet water head controller, so that the deformation and damage mechanism of the pressure of the recharging process to the water-bearing layer top plate can be studied; in addition, the actual change of the water-bearing layer is recorded through the high-speed camera, the stress deformation condition of the soil top plate is monitored through the strain gauge, the water head height of different positions of the water-bearing layer is recorded through the water head height controller, so that the permeation, the strain and the deformation of the top plate during the damage of the top plate in the recharging process are studied, and the three are combined for research, so that the method is more significant.
Drawings
FIG. 1 is a schematic illustration of a test system of the present invention for simulating deformation and failure of an aquifer roof caused by recharging well water;
fig. 2 is a schematic diagram of the aquifer simulation unit of fig. 1.
In the figure: 1-stirrer, 2-gas valve, 3-gas conduit, 4-air compressor, 5-suspension control chamber, 6-injection valve, 7-flowmeter, 8-injection conduit, 9-recharge well pipe, 10-strain gauge, 11-model box, 12-earthen top plate, 13-intake screen, 14-intake buffer zone, 15-intake head controller, 16-intake conduit, 17-intake head console, 18-base, 19-LED light source, 20-test hole, 21-aquifer, 22-outlet buffer zone, 23-outlet screen, 24-outlet head controller, 25-outlet conduit, 26-console, 27-rubber conduit, 28-gauge plate, 29-scale pipe, 30-laser range finder, 31-head height receiver, 32-strain receiver, 33-high speed camera, 34-computer, 35-flower pipe section, 36-filter material, 37-clay layer.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of the present invention provides a test system for simulating deformation and damage of a top plate of an aquifer caused by recharging well water, which includes an aquifer simulation unit, a recharging condition control unit, a test monitoring unit, and a data collection and arrangement unit;
The aquifer simulation unit comprises a transparent model box 11 and a recharging well pipe 9, wherein the model box 11 is fixed on a base 18, the inside of the model box is used for accommodating an aquifer 21 and a soil roof 12, the aquifer 21 is arranged at the inner bottom of the model box 11, and the soil roof 12 is stacked on the aquifer 21. The soil-top plate 12 includes a plurality of stacked layers of different colored soil layers to facilitate observation of changes in the soil-top plate 12 during the course of the test. The bottom of the model box 11 is also provided with an LED light source 19 which is fixed on the base 18 and is used for increasing the visibility of the aquifer 21.
The bottom of the model box 11 is provided with two outwards-protruding buffer areas, and the two buffer areas are specifically a water inlet buffer area 14 and a water outlet buffer area 22, which are respectively arranged on two opposite sides of the model box 11. And the inner side of the water inlet buffer zone 14 is adjacent to the water-bearing layer 21, and a water inlet filter screen 13 is arranged between the inner side and the water-bearing layer 21, and the water inlet filter screen 13 prevents particles in the water-bearing layer 21 from penetrating into the water inlet buffer zone 14; the inner side of the water-out buffer zone 22 is adjacent to the water-bearing layer 21, and a water-out filter screen 23 is arranged between the inner side and the water-bearing layer 21, and the water-out filter screen 23 blocks particles in the water-bearing layer 21 from penetrating into the water-out buffer zone 22.
The recharging well pipe 9 is inserted into the soil top plate 12 and extends into the aquifer 21, and the part of the recharging well pipe 9 located in the aquifer 21 is a pipe section 35. In this embodiment, the recharging well pipe 9 is an organic glass pipe, and the recharging well pipe 9 is drilled uniformly in the inner portion of the aquifer 21 to form the flower pipe section 35, and the drill hole size is smaller than the particle size in the aquifer 21. A clay layer 37 is arranged between the outer wall of the recharging well pipe 9 and the soil top plate 12, and a recharging filter material 36 is arranged between the outer wall of the flower pipe section 35 of the recharging well pipe 9 and the water-bearing layer 21. The clay layer 37 fills the gap between the outer wall of the recharging well pipe 9 and the soil roof 12, and the backfilling filter material 36 fills the gap between the outer wall of the flower pipe section 35 of the recharging well pipe 9 and the water-bearing layer 21, so that the soil roof 12 can be prevented from collapsing.
The recharging condition control unit comprises a suspension control device and a water head adjusting device, wherein the suspension control device comprises a suspension control chamber 5 and an air compressor 4, and the suspension control chamber 5 is respectively connected with the air compressor 4 and a recharging well pipe 9. Specifically, the suspension control chamber 5 is connected with the recharging well pipe 9 through the injection pipe 8, the suspension control chamber 5 is used for inputting suspension into the recharging well pipe 9, the suspension control chamber 5 is internally provided with the stirrer 1, and the suspension in the suspension control chamber 5 is stirred through the stirrer 1 to prevent particles in the suspension from precipitating. The liquid injection conduit 8 is provided with a liquid injection valve 6 and a flowmeter 7 for controlling the flow rate of the suspension liquid and monitoring the flow rate of the suspension liquid. The air compressor 4 is connected with the suspension control chamber 5 through a gas conduit 3, the gas conduit 3 is provided with a gas valve 2, the air compressor 4 is used for controlling the pressure of the suspension injected into the recharging well pipe 9, and the gas valve 2 is used for controlling the inflow of gas.
With respect to suspended particles in the suspension control chamber 5, colored fine particles are selected, and whether or not the aqueous layer 21 is clogged can be judged by the positions of the colored particles in the aqueous layer 21.
The water head adjusting device comprises a water inlet water head controller 15 and a water outlet water head controller 24 which are respectively connected to two side walls of the water-bearing layer 21, the water inlet water head controller 15 is used for controlling the water head height of the water inlet side of the water-bearing layer 21, and the water outlet water head controller 24 is used for controlling the water head height of the water outlet side of the water-bearing layer 21. The water inlet head controller 15 is fixed on the control console 17, and the water inlet head controller 15 is connected with the model box 11 through a water inlet pipe 16 and is connected into the aquifer 21. Specifically, one end of the water inlet conduit 16 is connected to the water inlet head controller 15, and the other end is connected to the outside of the water inlet buffer area 14.
The water outlet head controller 24 and the water inlet head controller 15 are arranged in the same way. That is, the water outlet head controller 24 is disposed on another console 26, and the water outlet head controller 24 is connected to the model box 11 through a water outlet pipe 25 and is connected to the aquifer 21. And one end of the water outlet conduit 25 is connected with the water outlet head controller 24, and the other end is connected with the outer side of the water outlet buffer zone 22.
The test monitoring unit comprises a plurality of strain gauges 10 arranged in the soil top plate 12 and a plurality of water head height observers, and each water head height observer is connected into the water-bearing layer 21.
Specifically, each water head height observer comprises a rubber conduit 27, a scale tube 29 and a laser range finder 30, one end of the rubber conduit 27 is connected into the water-bearing layer 21 in the model box 11, the other end of the rubber conduit is connected with the lower end of the scale tube 29, the upper ends of the scale tubes 29 are aligned with the laser range finder 30, and the scale tubes 29 of all the water head height observers are vertically fixed on the observation plate 28. Here, a test hole 20 is formed in the outer wall of the model box 11, the rubber conduit 27 is connected with the test hole 20, so as to be communicated with the aquifer 21, the laser range finder 30 is used for measuring the water head height of the scale tube 29, and the water head height in the scale tube 29 represents the water head height in the aquifer 21.
In this embodiment, the positions of the strain gauge 10 and the test hole 20 are set as follows: all the strain gauges 10 are respectively arranged in each layer of soil layer of the soil-made top plate 12, the strain gauges 10 are used for monitoring the strain change condition of the soil-made top plates 12 with different depths, a plurality of strain gauges 10 are arranged at equal heights in each soil layer, the strain gauges 10 between two adjacent layers of soil layers are in one-to-one correspondence up and down, and the strain change of the soil-made top plates 12 with different depths is compared and analyzed. All test holes 20 are arranged at equal height and are used for measuring the four water head change conditions of the same height and different intervals of the aquifer 21.
The data collection and arrangement unit comprises a high-speed camera 33, a computer 34, and a strain receiver 32 and a water head height receiver 31 which are respectively connected with the computer 34, wherein the high-speed camera 33 is arranged on one side of the model box 11, and the change condition of the aquifer 21 is shot in real time. The strain receivers 32 are respectively connected with all strain gauges 10, and the edge-applied receivers 32 are used for receiving the strain conditions in the soil-made top plate 12 in real time; the head height receiver 31 is connected to all the laser distance measuring devices 30 respectively, and the head height receiver 31 is used for receiving the head change condition in the aquifer 21. The computer 34 is used for fast processing and storing of measurement data for testing the strain gauge 10 and the laser rangefinder 31.
The specific using method of the test system for simulating deformation and damage of the top plate of the aquifer caused by recharging well water comprises the following steps:
(1) Preparing soil layers with various colors as soil samples of the soil top plate 12 for standby according to test requirements, and preparing soil samples of the water-bearing layer 21 at the same time;
(2) The tightness of the test system is checked, the situations of air leakage, water leakage and the like are prevented in the test process, and all valves are closed;
(3) The prepared soil top plate 12 and the aquifer soil sample are arranged in the model box 11, and in order to prevent water in the aquifer 21 from overflowing from the model box 11, vaseline is smeared on the edge of the soil top plate 12 when the soil top plate 12 is arranged;
(4) The water inlet head controller 15 controls the preset water head height and opens the valve of the water inlet head controller 15, so that water flows into the soil sample of the aquifer 21 from the water inlet head controller 15 until the soil sample of the aquifer 21 reaches a fully saturated state;
(5) Adding suspended coloring particles with a certain concentration into the suspension control chamber 5, opening the stirrer 1 to prevent the suspended particles from precipitating in a static state, and simultaneously opening the air compressor 4 to set the pressure in the suspension control chamber 5;
(6) Opening all valves, shooting the change condition of the aquifer 21 in real time through the high-speed camera 33, monitoring the strain condition in the soil-made top plate 12 through the stress meter 10, monitoring the water head change condition in the aquifer 21 through the laser range finder 30, and adopting a dense-before-sparse mode according to the test condition;
(7) Analytical studies are performed on the data recorded and the acquired images by computer 34.
In this document, terms such as front, rear, upper, lower, etc. are defined with respect to the positions of the components in the drawings and with respect to each other, for clarity and convenience in expressing the technical solution. It should be understood that the use of such orientation terms should not limit the scope of the claimed application.
The embodiments described above and features of the embodiments herein may be combined with each other without conflict.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (8)
1. A test system for simulating deformation and damage of a top plate of an aquifer caused by recharging well water is characterized in that: the system comprises an aquifer simulation unit, a recharging condition control unit and a test monitoring unit;
The aquifer simulation unit comprises a transparent model box and a recharging well pipe, wherein an aquifer is arranged at the bottom in the model box, a soil top plate is arranged on the aquifer, the soil top plate comprises a plurality of layers of stacked soil layers with different colors, the recharging well pipe is inserted into the soil top plate and extends into the aquifer, and the part of the recharging well pipe, which is positioned in the aquifer, is a flower pipe section;
The recharging condition control unit comprises a suspension control device and a water head regulating device, wherein the suspension control device comprises a suspension control chamber and an air compressor, the suspension control chamber is respectively connected with the air compressor and the recharging well pipe, the suspension control chamber is internally used for storing suspension with colored particles, and the water head regulating device comprises a water inlet water head controller and a water outlet water head controller which are respectively connected with two side walls of the aquifer;
The test monitoring unit comprises a plurality of strain gauges arranged in the soil top plate and a plurality of water head height observers, and each water head height observer is connected into the water-containing layer;
The suspension control chamber is connected with the recharging well pipe through a liquid injection conduit, a stirrer is arranged in the suspension control chamber, a liquid injection valve and a flowmeter are arranged on the liquid injection conduit, the air compressor is connected with the suspension control chamber through a gas conduit, and a gas valve is arranged on the gas conduit;
The water inlet head controller is fixed on the control console, is connected with the model box through a water inlet pipe and is connected with the water-bearing layer, and the arrangement mode of the water outlet head controller is the same as that of the water inlet head controller.
2. A test system for simulating deformation and destruction of a roof of an aquifer caused by recharging well water as recited in claim 1, wherein: each water head height observer comprises a rubber conduit, a scale tube and a laser range finder, one end of the rubber conduit is connected into the water-bearing layer in the model box, the other end of the rubber conduit is connected with the lower end of the scale tube, the upper ends of the scale tubes are aligned with the laser range finder, and the scale tubes of all the water head height observers are vertically fixed on an observation plate.
3. A test system for simulating deformation and destruction of a roof of an aquifer caused by recharging well water as recited in claim 2, wherein: the system comprises a model box, a data collection and arrangement unit, a laser distance measuring device and a laser distance measuring device, wherein the data collection and arrangement unit comprises a high-speed camera, a computer, a strain receiver and a water head height receiver, the strain receiver and the water head height receiver are respectively connected with the computer, the high-speed camera is arranged on one side of the model box, the strain receiver is respectively connected with all strain gauges, and the water head height receiver is respectively connected with all laser distance measuring devices.
4. A test system for simulating deformation and destruction of a roof of an aquifer caused by recharging well water as recited in claim 2, wherein: the outer wall of the model box is provided with a plurality of test holes communicated with the aquifer, and all the test holes are arranged at equal heights.
5. A test system for simulating deformation and destruction of a roof of an aquifer caused by recharging well water as recited in claim 1, wherein: all strain gauges are respectively arranged in each layer of soil layer of the soil-made top plate, a plurality of strain gauges are arranged at equal heights in each soil layer, and the strain gauges between two adjacent layers of soil layers correspond up and down one by one.
6. The test system for simulating deformation and damage of a roof of an aquifer caused by recharging well water as recited in claim 5, wherein: two buffer areas protruding outwards are arranged at the bottom of the model box, the two buffer areas are respectively a water inlet buffer area and a water outlet buffer area, a water inlet filter screen is arranged between one side of the water inlet buffer area and the water outlet buffer area, and the other side of the water inlet buffer area is connected with the water inlet guide pipe; one side of the water outlet buffer area is adjacent to the water-bearing layer, a water outlet filter screen is arranged between the two water outlet buffer areas, the other side of the water outlet buffer area is connected with a water outlet guide pipe, and the water outlet guide pipe is connected with the water outlet water head controller.
7. A test system for simulating deformation and destruction of a roof of an aquifer caused by recharging well water as recited in claim 1, wherein: a clay layer is arranged between the outer wall of the recharging well pipe and the soil top plate, and a backfilling filter material is arranged between the outer wall of the flower pipe section of the recharging well pipe and the water-bearing layer.
8. A test system for simulating deformation and destruction of a roof of an aquifer caused by recharging well water as recited in claim 1, wherein: and an LED light source is arranged at the bottom of the model box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911323705.6A CN110987363B (en) | 2019-12-20 | 2019-12-20 | Test system for simulating deformation and damage of top plate of aquifer caused by recharging well water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911323705.6A CN110987363B (en) | 2019-12-20 | 2019-12-20 | Test system for simulating deformation and damage of top plate of aquifer caused by recharging well water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110987363A CN110987363A (en) | 2020-04-10 |
| CN110987363B true CN110987363B (en) | 2024-05-14 |
Family
ID=70073343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911323705.6A Active CN110987363B (en) | 2019-12-20 | 2019-12-20 | Test system for simulating deformation and damage of top plate of aquifer caused by recharging well water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110987363B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067793B (en) * | 2020-09-22 | 2022-11-11 | 山东科技大学 | Experimental device and method for simulating stratum subsidence rule in coastal mining |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897877A (en) * | 2015-06-12 | 2015-09-09 | 济南轨道交通集团有限公司 | Indoor reinjection model test system simulating confined water stratum and control method of indoor reinjection model test system |
| CN106847048A (en) * | 2017-02-28 | 2017-06-13 | 济南轨道交通集团有限公司 | Simulate the emulation Boundary Test system of artesian groundwater recharge |
| CN109580368A (en) * | 2018-11-19 | 2019-04-05 | 同济大学 | Excavation Deformation of Deep Foundation Pits character centrifugal model test device in a kind of multilayer artesian water stratified formations |
| CN208780428U (en) * | 2018-10-12 | 2019-04-23 | 张宏龙 | A kind of difference pH value groundwater recharge clogging experimental device |
| CN211602354U (en) * | 2019-12-20 | 2020-09-29 | 中国地质大学（武汉） | Test system for simulating deformation and damage of aquifer top plate caused by well water recharge |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8596351B2 (en) * | 2011-04-12 | 2013-12-03 | ARCADIS Corporate Services, Inc. | Horizontal in-well treatment system and source area bypass system and method for groundwater remediation |
-
2019
- 2019-12-20 CN CN201911323705.6A patent/CN110987363B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897877A (en) * | 2015-06-12 | 2015-09-09 | 济南轨道交通集团有限公司 | Indoor reinjection model test system simulating confined water stratum and control method of indoor reinjection model test system |
| CN106847048A (en) * | 2017-02-28 | 2017-06-13 | 济南轨道交通集团有限公司 | Simulate the emulation Boundary Test system of artesian groundwater recharge |
| CN208780428U (en) * | 2018-10-12 | 2019-04-23 | 张宏龙 | A kind of difference pH value groundwater recharge clogging experimental device |
| CN109580368A (en) * | 2018-11-19 | 2019-04-05 | 同济大学 | Excavation Deformation of Deep Foundation Pits character centrifugal model test device in a kind of multilayer artesian water stratified formations |
| CN211602354U (en) * | 2019-12-20 | 2020-09-29 | 中国地质大学（武汉） | Test system for simulating deformation and damage of aquifer top plate caused by well water recharge |
Non-Patent Citations (2)
| Title |
|---|
| 人工回灌过程中含水层堵塞试验研究;李璐;卢文喜;杜新强;冉渊;;人民黄河;20100620(06);全文 * |
| 能源桩桩身横向变形试验研究;张琦;王琰;赵海丰;桂树强;骆进;;人民长江;20200625(05);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110987363A (en) | 2020-04-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101504351B (en) | Sand bed seepage flow sludge plugging simulation apparatus | |
| CN108827833A (en) | Indoor tracer test system based on karst dielectric attribute inverting | |
| CN108222082B (en) | Dynamic precipitation indoor model test method and device for foundation pit under condition of multiple aquifers | |
| CN104005363A (en) | Three-dimensional underground pressure-bearing water flow-subway tunnel structure interaction simulating device | |
| CN105716960A (en) | Foundation pit excavation model test device used in complicated groundwater environment | |
| CN106324226A (en) | Pouring and injection integrated indoor testing device and method for monitoring underground water seepage and precipitation | |
| CN105092798A (en) | Indoor recirculation system for simulating varying-head water-permeable soil layer phreatic water stratum and experimental method | |
| CN105675846B (en) | Phreatic table and the excavation of foundation pit model test apparatus of artesian head collaboration lifting | |
| CN108287123B (en) | CO under dynamic filtration2Fracturing fluid sand-carrying visual testing device and method | |
| CN107831106B (en) | Intelligent permeability measurement test bed | |
| CN105716958A (en) | Foundation model test device for simulating lifting and dropping of confined water head | |
| CN105672379A (en) | Foundation pit excavation model test device under dynamic artesian water action | |
| CN201359590Y (en) | Sand-layer seepage siltation stimulator | |
| CN110987363B (en) | Test system for simulating deformation and damage of top plate of aquifer caused by recharging well water | |
| CN110608978B (en) | Fine particle migration tracing test device in simulated aquifer water pumping and injection process | |
| CN204925080U (en) | Simulation becomes indoor system of recharging in flood peak permeable ground dive stratum | |
| CN104033147A (en) | Low permeability horizontal well staged fracturing coupling flow experimental device | |
| CN205712215U (en) | The excavation of foundation pit model test apparatus of simulation artesian head lifting | |
| CN105784562A (en) | Transparent soil test device used for simulating seepage of foundation pit dewatering confined aquifer underground water | |
| CN211602354U (en) | Test system for simulating deformation and damage of aquifer top plate caused by well water recharge | |
| CN206575982U (en) | One kind is based on the dynamic underground drip irrigation simulation test device of water infiltration | |
| CN105672378A (en) | Foundation pit excavation model testing device simulating lifting of artesian head | |
| CN205720219U (en) | Phreatic table and artesian head work in coordination with the excavation of foundation pit model test apparatus of lifting | |
| CN205719795U (en) | Excavation of foundation pit model test apparatus under complicated groundwater environment | |
| CN117309735A (en) | Batch fossil gypsum rock dynamic water erosion test method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |