61 results about "Ground water flow" patented technology

The invention is applicable to the technical field of underground water level monitoring and sampling, and provides an underground water level monitoring and sampling device for hydraulic engineering, which comprises a base, the base is rotatably connected with a plurality of adjustable supporting assemblies for supporting and limiting, the upper end face of the base is provided with a winding mechanism, and the winding mechanism is wound with a pull rope. A sampling barrel is fixedly arranged at one end of the pull rope, the winding mechanism is connected with a movable limiting assembly, and the movable limiting assembly can limit the pull rope in the horizontal direction; the device further comprises a falling speed optimization system which can regulate and control the falling speed of the sampling barrel. Under the interference of multiple factors such as wind speed sudden change, underground water flow velocity fluctuation and pull rope elasticity mismatching, the rotating speed of the winding mechanism can be dynamically adjusted, sampling barrel swinging and track deviation are restrained, meanwhile, mechanical damage caused by sudden change of the rotating speed is avoided, and the sampling efficiency and data reliability are improved.

A smart dewatering and water stopping method for a foundation pit, the method comprising the following steps: step S1, dewatering: arranging a plurality of dewatering wells, arranging dewatering water pumps, and lowering a water level in each dewatering well to a preset position by means of each dewatering water pump; step S2, drainage: arranging water collection systems, and draining water from inside a foundation pit by means of the water collection systems; step 3, water blocking: arranging an underground water blocking barrier to prevent underground water outside the foundation pit from flowing into the foundation pit; step S4, water cut-off: arranging a water blocking wall to block water-layer interflow between the interior of the foundation pit and the exterior of the foundation pit; and step S5, performing well water level monitoring, and starting an emergency measure: when a water level exceeds a preset safety range or a stability index of the foundation pit is reduced, starting an automatic emergency measure system. In the present application, for underground water control, the automatic emergency measure system is used to achieve the aims of smart dewatering and water stopping of the foundation pit.

A groundwater heat exchanger includes a distributor, a collector, a plurality of heat exchange pipes, and a housing. The distributor includes a first interior chamber and a first port. The collector includes a second interior chamber and a second port. Each heat exchange pipe includes a first end attached to the distributor and a second end attached to the collector, and defines a fluid passageway between the first and second interior chambers. The housing surrounds the heat exchange pipes and defines a groundwater passageway along the heat exchange pipes that is configured to receive a groundwater flow. In one example, a loop fluid flow received at the first port flows into the first interior chamber, then flows from the first interior chamber to the second interior chamber through the plurality of heat exchange pipes, and flows from the second interior chamber out the second port.

A three-dimensional heterogeneous aquifer horizontal equivalent permeability coefficient multi-scale prediction method based on a residual network comprises the steps that a foundation pit dewatering two-dimensional pressure-bearing steady flow model is constructed, the influence of the size of a lenticular body on foundation pit dewatering flow field disturbance is evaluated, and the resolution ratio of a parameter prediction model grid is determined; based on actual drilling data and transition probability / Markov chain T-Progs, according to multiple deposition types formed by a binary deposition structure, a multi-layer aquifer structure, a coarse-grained deposition structure and a fine-grained deposition structure, a three-dimensional stratigraphic random structure model set is constructed, and three-dimensional stratigraphic section random slices are established; obtaining horizontal equivalent permeability coefficients corresponding to stratigraphic sections in various stratigraphic structures based on the underground water flow numerical model FloPy, and establishing a stratigraphic structure-equivalent permeability coefficient training set based on a neural network; a deep learning model is constructed based on the residual network ResNet50; and training, verifying and testing the equivalent permeability coefficient of the stratum section formed by the binary sedimentary structure, the multi-layer aquifer structure, the coarse grain sedimentary structure and the fine grain sedimentary structure.

The invention provides an oxidation active zone remediation system and method for underground water organic pollution. The remediation system comprises a plurality of injection wells and monitoring wells which are arranged at the downstream of an underground water pollution plume; the injection wells are distributed in rows at equal intervals in the direction perpendicular to the underground water flow field, the adjacent injection wells in the same row are distributed at equal intervals, and the injection wells in the adjacent rows are distributed in a staggered mode. The monitoring wells are arranged at upstream and downstream positions of an oxidation active zone formed by the injection wells; the injection well is of a double-well structure and comprises an inner well and an outer well. The inner well and the outer well are slotted floral tubes, a repairing agent is injected into the inner well, and the space between the inner well and the outer well is filled with a slow-release repairing material; and the outer side of the outer well is provided with a well wall formed by filling quartz sand filter materials, sodium bentonite particles and anti-seepage cement paste from bottom to top. According to the remediation system, through the reasonable structural design and application of the remediation agent and the slow-release remediation material, an oxidation activity reaction zone can be rapidly established, underground water pollution diffusion is efficiently blocked, and rapid and effective remediation of underground water is achieved.

The application provides a method for determining inflow hydrograph of urban stormwater inlet, which is in line with actual urban runoff conditions and can effectively reduce the error of calculation results. The urban area is divided into multiple sub-regions according to the road network, and the net rainfall is discharged from the stormwater inlet, and the single stormwater inlet in the sub-region is calculated respectively; the urban surface runoff is calculated by using the comprehensive runoff coefficient method, and the runoff coefficient not greater than 1 is used to represent the runoff after the rainfall is intercepted and lost on the ground; for the rainfall in the small urban area, the ground water flow is in the form of slope flow and shallow concentrated flow; the catchment time is the sum of the two, the slope flow with a flow line not greater than 90m is calculated by using the Manning dynamics method to calculate the surface runoff flow time; after the slope flow stops flowing for 90m, the shallow concentrated flow with a water depth greater than 3cm appears at this time, and the stormwater inlet design flow inflow calculation formula is: Q = F * (P - S) / (T + 90) wherein Q is the stormwater inlet inflow, L / min; F is the average catchment area controlled by each stormwater inlet, m 2 .

This invention provides a water-stopping device, relating to the field of building waterproofing technology. The water-stopping device includes a water-stopping steel plate and a drain pipe arranged along the length of the water-stopping steel plate. The drain pipe has a drain outlet along its length, allowing groundwater that has seeped onto the upper surface of the water-stopping steel plate to flow into the drain outlet. By installing this water-stopping device, the water-stopping steel plate can be used to seal the interface joint between pre- and post-cast concrete. If the water-stopping steel plate fails to stop the water flow, and the seeping groundwater flows from the interface joint between the water-stopping steel plate and the concrete to the upper surface of the water-stopping steel plate, the seeping groundwater will flow into the drain pipe through the drain outlet and then into a nearby sump. This prevents groundwater seeping through the concrete interface joint from leaking onto the basement floor surface, making the water-stopping device an integrated blocking and draining system with multiple lines of water-stopping defense, significantly improving the water-stopping effect at the post-cast concrete joint.

The invention discloses an underwater crack grouting retention rate testing device, and relates to the field of grouting retention rate test.The underwater crack grouting retention rate testing device comprises a supporting assembly and a testing table top fixed to the supporting assembly, a testing box, a water supply box and a grouting box are arranged on the testing table top, and the water supply box is located on the side face of the testing box and communicates with the testing box through a water inlet pipeline; the other side of the testing box is connected with a purified water tank through a drainage pipeline, the purified water tank is communicated with the water supply tank through a water return pipeline, the grouting box is connected with the height adjusting assembly, the side face of the grouting box is connected with a grouting pipe, and the tail end of the grouting pipe is located at the testing box. (1) the height of the grouting box is adjusted through the height adjusting assembly, so that the grouting pressure is adjusted, and the retention rate under different grouting pressures can be met; (2) simulating the underground water flowing condition through a water inlet pump, and adjusting the height of the model to meet the retention rate under different underground water level conditions; and (3) recycling of water is realized by arranging a purification water tank, and the utilization rate of water resources is improved.

The invention discloses an underground water seepage monitoring device which comprises a shell, a heating piece, a heat conduction cylinder, a first temperature sensor, a water flow measuring block, a connecting rod and a control terminal. The heat conduction cylinder is located on the lower side of the heating piece and provided with a measuring position corresponding to the heating piece and close to one end of the heat conduction cylinder in the first direction so as to divide the heat conduction cylinder into a first heat conduction part and a second heat conduction part, the length of the first heat conduction part is larger than that of the second heat conduction part, and the heat conduction cylinder can move up and down relative to the heating piece. The first temperature sensor is arranged on the heat conduction cylinder and corresponds to the measuring position; the water flow measuring block is located outside the shell, is in a rectangular pyramid shape or a quadrangular frustum pyramid shape, is provided with a top end and a bottom end in the first direction and can rotate around the axis of the water flow measuring block. The connecting rod is connected with the heat conducting cylinder and the water flow measuring block, and the first heat conducting part corresponds to the top end; the control terminal is electrically connected with the heating piece and the first temperature sensor; the underground water flow direction and flow velocity can be automatically monitored in situ in real time for a long time, the operation is simple, and the cost is low.

The invention relates to a karst collapse multi-modal early warning method and system based on a space-time fusion attention mechanism, and aims to realize accurate prediction and early warning of a stratum collapse risk through multi-modal data fusion and the space-time fusion attention mechanism. According to the method, firstly, multi-modal data such as horizontal strain, vibration, stratum settlement displacement and underground water flow velocity are collected through a horizontal measuring pipe and a vertical drill hole, and space and time characteristic tensors are constructed; then, a space-time fusion attention mechanism is adopted to distribute weights for different space positions and time points so as to highlight areas and moments which have great influence on the stratum collapse risk; the model extracts space and time features through CNN and LSTM, comprehensively analyzes the risk contribution of environment, stratum structure and physical perception data through a risk operator, and finally generates a risk early warning signal. The method can monitor the change of the stratum in real time and generate early warning, and has the advantages of multi-modal data fusion, space-time weight dynamic adjustment, accurate risk assessment and the like.

A groundwater heat exchanger includes a plurality of heat exchange pipes, a housing and a cable channel. Each of the heat exchange pipes is configured to receive a loop fluid flow. The housing has an interior chamber that contains the heat exchange pipes and defines a groundwater passageway that is configured to receive a groundwater flow. The cable channel is formed on an exterior of the housing and extends along a central axis of the housing. The cable channel includes at least one cable pathway configured to receive one or more cables.

The present invention discloses an air pressure detection device and an aquifer air pressure detection method, and relates to the field of air pressure detection equipment. The present invention includes an intelligent controller, an air pressure detection sensor, and a wire. The air pressure detection sensor is connected to the intelligent controller via the wire, and also includes a reeling and unreeling mechanism and an unreeling length detection mechanism. The reeling and unreeling mechanism can reel or unreel the wire, and the unreeling length detection mechanism can detect the unreeling length of the wire. By detecting the air pressure of the underground aquifer, data support is provided for the aeration construction of the underground aquifer, which is conducive to accurately controlling the aeration volume and preventing the aquifer from being overly high in air pressure, thereby disturbing the groundwater flow field or causing gas channeling and damaging the underground aquifer environment. Moreover, through the cooperation of the air pressure detection sensor, the linear velocity sensor, the intelligent controller, and the reeling and unreeling mechanism, the air pressure at different depths in the underground aquifer can be detected, and the depth information can be accurately matched with the air pressure information, thereby improving the air pressure detection accuracy of the underground aquifer.

The utility model relates to a waterproof flow guide blind ditch structure at the connecting place of diaphragm wall, it includes flow guide blind ditch main part, flow guide blind ditch main part sets up at the connecting place of diaphragm wall, is used for guiding the ground water flow, prevents the ground water and accumulates at the connecting place, the utility model discloses a flow guide blind ditch is established, effectively guides the ground water flow, prevents the ground water and accumulates at the connecting place, reduces the seepage risk, improves the overall waterproof performance of diaphragm wall, guarantees the engineering quality. The application still has the advantages such as convenient construction, low cost, can satisfy the efficient and economic demand of modern underground engineering construction.

The invention relates to the technical field of site investigation, in particular to a multi-depth stratified sampling well building method which comprises the following steps: S1, drawing a circle on a polluted site, and drawing a first sine curve along the flow direction of underground water of the polluted site; s2, drawing a branch line and a second sine curve along the wave crest or wave trough direction of the first sine curve; s3, well building is carried out with the circle center, the wave crest or wave trough of the first sine curve and the intersection point of the second sine curve and the second x axis as well building point positions, and well building is completed; according to the well building method, the main line is arranged in the underground water flow direction with the circle center of the polluted site as the starting point, the branch lines extend in the vertical direction, a three-dimensional space monitoring network is formed, diffusion paths of pollutants in the main flow direction and the lateral direction can be synchronously tracked, and the well building method is particularly suitable for accurate description of pollution plumes in a heterogeneous aquifer.

The application discloses a mechanism for preventing underground aquifer heat storage medium migration, and relates to the technical field of agricultural facility heating, comprising a heat well and a plurality of stability wells arranged around the heat well in a circumferential direction, the adjacent stability wells are connected through water pipes, the water pipes are filled with water and the air is discharged, the water level in the stability well is higher than that in the high water level area after water injection, and the water outlet at the lower end of the water pipe is always below the ground water level line. The application can reduce heat loss caused by underground water flow of the underground aquifer cross-season heat storage mechanism, and improve the heat storage effect.

The invention discloses an underground water flow direction, speed and mass flow monitoring method. Underground water flow direction logging or hydrological logging is a technical means for obtaining underground water flow information through a drill hole or a monitoring well. An array sensor is located in a well logging; the array sensor comprises a cylindrical shell, a heating body, a temperature sensor and an orientation sensor; the size of the cylindrical shell is the same as that of the inner wall of the logging well; the heating body is arranged at the central position of the cylindrical shell; the bottom surface of the cylindrical shell is uniformly divided into N fan-shaped sub-areas along the circumference by taking the heating body as the center, and each sub-area is provided with a temperature sensor; an orientation sensor is arranged on each temperature sensor and is used for monitoring the azimuth angle of the temperature sensor; data collected by the array sensor is transmitted to the controller, and the flow speed, the water flow direction and the total mass flow rate of water flow are obtained through calculation. According to the invention, the measurement difficulty of a heterogeneous aquifer and a thin aquifer is overcome, and wider and more accurate monitoring of the aquifer environment is realized.

The application discloses a groundwater sampling flow control system, which comprises an ultrasonic flow detection module, a flow control module, a data processing and storage module, a display module and a portable integrated box. The measurement range of the ultrasonic flow detection module is 0-20 L / min, and the precision control is ±0.1%. The flow rate and flow are calculated by detecting the time difference of the forward and reverse flow propagation of sound in the groundwater fluid. The flow control module cooperates with a sampling pump to realize accurate flow regulation and control. The data processing and storage module can calculate the cumulative flow, store historical data and support USB export. The display module realizes the digital real-time display of the flow rate, cumulative flow, battery capacity and other information. The system realizes accurate control and measurement of the groundwater sampling flow, avoids sample pollution, is portable and easy to operate, can record the well washing state, and meets the national standard requirements for VOC water sample collection.

This utility model discloses a pressure relief and repair structure for cut-off points in basement slabs, comprising a cast-in-place body and a pressure relief mechanism. The cast-in-place body is formed within a cut-off groove in the basement slab. The pressure relief mechanism includes a pressure relief pipe and a filter head. The pressure relief pipe is embedded within the cast-in-place body, with its lower end located below the basement slab and its upper end located above the basement slab. The filter head is positioned at the lower end of the pressure relief pipe. The beneficial effects of this basement slab cut-off point pressure relief and repair structure are: by setting up the pressure relief mechanism, groundwater can be discharged through the pressure relief pipe during the solidification process of the cast-in-place body. This avoids the erosion of the solidifying concrete by groundwater under water pressure, as is common in traditional methods, allowing the concrete to solidify normally, resulting in a denser internal structure and improved basement slab repair effectiveness.

The application provides an experimental device and method for simulating a tilted borehole pumping experiment, and relates to the field of hydrogeology, and comprises a sand box part, a water tank part, a pressure measuring tube part and a pumping well part. The sand box part simulates an aquifer, and in the experiment, the simulation of the spatial distribution of the stratum in the actual situation is realized by controlling the particle size and combination of the filler; the water tank part adjusts the water level at both ends of the sand box, and controls the flow state of the groundwater in the sand box by adjusting the relative height of the two side water tanks; the pressure measuring tube part measures the size of the water head pressure of the aquifer at different positions in the sand box, and depicts the flow field of the sand box in the pumping experiment; and the pumping well part is composed of different angle boreholes by the water pump and the filter pipe according to different experimental purposes. The experimental device can be used to obtain the water level change rate and the drawdown funnel scale of the aquifer when the pumping experiment is carried out in different angle boreholes, and can monitor the disturbance state of the flow field in real time.

The invention discloses a high-salinity mine water deep well ex-situ recharge resource water retention and remediation method, and belongs to the technical field of mine water recharge and underground water supply. The method comprises the following steps: collecting and analyzing basic data, investigating geothermal development conditions, and determining underground water consumption conditions and water quality characteristics of each water-containing geothermal layer; based on the water quality safety principle and the mining safety principle, a proper recharge target aquifer is screened; establishing a three-dimensional underground water numerical model, simulating the influence of different recharge amounts, hole numbers and intervals on an underground water flow field, obtaining the relationship between the maximum water level uplift and the parameters, and forming various recharge schemes; and by taking mining safety as a red line and combining economic indexes, performing water filling strength evaluation on the scheme under a long-term recharge condition, and determining an optimal recharge scheme. According to the method, resource utilization of the high-salinity mine water is achieved, stable supply is provided for geothermal reservoirs, the mine water treatment cost can be reduced, coal mining safety is guaranteed, and the method has important significance on coal-water-heat collaborative mining.

The present disclosure relates to a groundwater circulation well group and a circulation mode control method therefor. The groundwater circulation well group includes at least two multi-filter-layer groundwater circulation wells, multiple pumping / injection assemblies, and a control module. The at least two multi-filter-layer groundwater circulation wells are arranged in order along a groundwater flow direction. A wellbore of each multi-filter-layer groundwater circulation well is separated by at least two first packers to form three pumping / injection sections, and each pumping / injection section is internally provided with at least one pumping / injection assembly for water pumping / injection. The water pumping and / or water injection of the pumping / injection assembly is controlled by the control module. A pipe wall of each pumping / injection section is provided with a perforated water pumping / injection screen section.

The underground water drip irrigation temperature increasing mechanism comprises two layers of drip irrigation pipes and a water and fertilizer integrated pipe, and the two layers of drip irrigation pipes are located on the two sides of a first thin film; the water-fertilizer integrated pipe is located at a crop root; the constant-temperature pipe is arranged on one side of crops, underground water flows through the constant-temperature pipe and transmits heat into a cavity of the second film through the constant-temperature pipe, and under the condition that the temperature of the underground water is stabilized at 12-15 DEG C, the first water pump conveys the underground water into the heat preservation water tank, and the second water pump conveys the underground water in the heat preservation water tank to one end of the flow dividing valve. The diverter valve is communicated with the drip irrigation pipe and the water and fertilizer integrated pipe to realize drip irrigation. The device has the advantages that underground water is conveyed into the heat preservation water tank through the first water pump, the underground water in the heat preservation water tank is conveyed to one end of the flow dividing valve through the second water pump, the flow dividing valve is communicated with the drip irrigation pipe and the water and fertilizer integrated pipe, and drip irrigation temperature increasing operation is achieved; through the arrangement of the triangular valves and the elastic sleeves, the water permeable holes can be prevented from being blocked, and the drip irrigation efficiency is guaranteed.

The application is a system for realizing water saving and reducing water field non-point source pollution based on intercepting and storing underground water, which is characterized by: the system is composed of underground water interception structure and underground water gate regulation structure, the underground water interception structure is located at the end of drainage channel and the downstream end of underground water flow direction, and is buried below the ground surface, used for intercepting and storing underground water, at least one underground water gate regulation structure is arranged in the underground water interception structure, the upper end of the underground water gate regulation structure is above the ground surface, which is beneficial to operation, the lower end of the underground water gate regulation structure is below the ground surface, the water inlet is communicated with the water outlet end of the underground water interception structure, the water outlet of the underground water gate regulation structure is communicated with the drainage channel, used for regulating underground water level and preventing secondary salinization. The system can form an underground barrier to effectively intercept and store the originally lost underground return water, so as to achieve the purpose of intercepting and discharging underground water, and improve the utilization rate of irrigation water.

The utility model relates to the technical field of oil exploration and development, in particular to an automatic sampling and analyzing device for well logging. The utility model provides an automatic sampling and analyzing device for well logging, which can be used for conveniently and automatically collecting well logging drilling fluid, separating geological components in the drilling fluid in the collecting process and improving the detection efficiency. An automatic sampling and analyzing device for well logging comprises a protective shell, a discharging pipe, a sieve plate and the like, the discharging pipe is connected to the inner side of the protective shell, and the sieve plate is placed on the upper portion of the protective shell. According to the well logging drilling fluid collecting device, large stones in drilling fluid are filtered out through the sieve plate, slurry in the drilling fluid is filtered out through the sediment plate, underground water in the drilling fluid flows into the collecting bin to be collected, the well logging drilling fluid can be conveniently and automatically collected, geological components in the drilling fluid can be separated in the collecting process, and therefore the well logging drilling fluid collecting device is convenient to use. And the detection efficiency is improved.

The invention belongs to the technical field of dock drainage systems, and particularly relates to a double-dock-chamber type dock decompression drainage system and a construction method thereof. Two sets of drainage units corresponding to a water-side dock chamber and a land-side dock chamber in the double-dock-chamber type dock decompression drainage system are communicated through a communication pipeline, and an opening and closing valve on the communication pipeline can adjust the connection state of the two sets of drainage units. When the opening and closing valves are opened, underground water in the two drainage units can be drained out of the dock after intensively flowing to the water collecting duct through the communicating pipeline; when the opening and closing valve is closed, underground water in the drainage unit below the water-side dock chamber flows to the water collecting duct and then is drained out of the dock, and underground water in the drainage unit below the land-side dock chamber can be pumped out of the dock through the temporary drainage pump, so that the drainage requirement of common or independent operation of the double dock chambers of the dock is met, underground water backward flowing is avoided, and the service life of the dock is prolonged. And the situation that the operation of the double-dock-chamber type dock is limited is avoided.

The invention discloses a hydraulic engineering construction method and system, and relates to the technical field of foundation pit engineering precipitation, and the method comprises the steps: building a three-dimensional underground water flow field model, obtaining underground water flow field characteristic parameters, and determining a precipitation key control region; designing and determining a multi-stage precipitation well group arrangement scheme according to the underground water flow field characteristic parameters and the precipitation key control area; based on a multi-stage precipitation well group arrangement scheme, adopting a staged starting strategy to implement precipitation operation, and establishing a staged precipitation layout; foundation pit excavation operation is conducted on the basis of the graded precipitation layout, the precipitation effect is monitored and water pumping parameters are adjusted in the excavation process, and after foundation pit excavation is completed, the precipitation well group is maintained to run till underground structure construction is completed; and after construction of the underground structure is completed, staged pump stopping operation is implemented. According to the method, the three-dimensional groundwater flow field model is established to guide accurate arrangement of the multi-stage dewatering well group, a staged control strategy is adopted, refined management and control of foundation pit dewatering are achieved, the dewatering efficiency is improved, and the engineering cost is reduced.

The application discloses a kind of filling new material PRB permeable reaction wall test device, it is related to permeable reaction wall test technical field, including base;Drive bin, it is fixed in one side of base, and its inside fixed drive cylinder body;Fixed plate, it is fixed in the upper end surface of base, and it is set in the side of base close to drive bin;Bottom plate, it is fixed in the upper end surface of base, located in the side of fixed plate, and its inside fixed has adjusting cylinder body;Support piece, at least two, are all fixed on bottom plate;Adjusting assembly, it is fixed in the side of fixed plate away from drive bin;Adjusting bin, it is fixed in the side of adjusting assembly away from fixed plate, and is fixed by one of support piece, the inner wall of adjusting bin is opened with two groups of conversion grooves symmetrically;Drainage bin, it is slidably arranged on another support piece, and located in the side of adjusting bin away from adjusting assembly;Clamping assembly, it is installed on drainage bin;The application can accurately simulate the actual situation of groundwater flow, improve simulation accuracy.

The application discloses a kind of wellbore skin permeability coefficient determination method and system, it is related to hydrogeology technical field, the method is simulated by experimental device well nearby groundwater flow field, adjusts stable water tank height to simulate different water head difference, obtains the actual flow rate data of wellbore and aquifer under multiple working conditions;Three-dimensional steady flow numerical model including the zonal seepage equation and corresponding boundary conditions of aquifer region and wellbore skin region is established, and the characteristics of three-dimensional flow field near well are restored;Numerical model consistent with experimental parameters is constructed, iterative adjustment wellbore skin permeability coefficient, determine the permeability coefficient of wellbore skin region when the relative error between simulated wellbore flow rate and actual flow rate in wellbore is smallest;Through physical experimental device and numerical simulation and inversion subsystem work cooperatively, both can adjust stable water tank height to realize multiple working condition experiment, also can avoid the problem that traditional method geology scene is disjointed, data error is big, cost is high, to complete wellbore skin permeability coefficient determination.

The application discloses a groundwater remediation device and method, and the device comprises multiple-stage funnel-door type permeable reaction walls arranged at intervals.