Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

95 results about "Hydrogeology" patented technology

Hydrogeology (hydro- meaning water, and -geology meaning the study of the Earth) is the area of geology that deals with the distribution and movement of groundwater in the soil and rocks of the Earth's crust (commonly in aquifers). The terms groundwater hydrology, geohydrology, and hydrogeology are often used interchangeably.

Underground water level dynamic regulation and control method and system based on digital twinning

The invention belongs to the technical field of hydrogeology and intelligent control, particularly relates to an underground water level dynamic regulation and control method and system based on digital twinning, and aims to solve the problems of one-sided perception, static model, extensive decision and single feedback of traditional regulation and control. The method comprises the following steps: collecting multi-source monitoring data and constructing a data set through cross-scale calibration; constructing a multi-field dynamic coupling digital twinborn model, and introducing a dynamic coupling coefficient to deduce a risk evolution field; calculating a variable coefficient of the risk value of each physical field based on the risk evolution field, and generating a comprehensive risk value; and matching the risk threshold to generate a deep and shallow layered regulation and control instruction. The multi-field dynamic coupling breaks the static limitation of the model, the dynamic weight based on the variable coefficient ensures that the regulation and control decision can preferentially respond to the key physical field with high absolute risk level and large spatial fluctuation, and the full-region visual tracking and accurate management and control of the underground water level and the geological risk are realized.
Owner:北京市地质调查研究所

Underground water abnormity identification and early warning method based on multi-time-sequence spatial-temporal change rate field

The invention relates to the field of hydrogeology and environmental engineering, and discloses an underground water anomaly identification and early warning method based on a multi-time-sequence spatial-temporal change rate field, which comprises the following steps: acquiring underground water monitoring data, constructing a multi-time-sequence underground water level burial depth space field, constructing a spatial-temporal change rate field, acquiring a comprehensive saliency map, intelligently identifying a dynamic descending area of underground water, and performing early warning. Identifying and classifying the dynamic descending area, quantifying the dynamic index of the dynamic descending area, and performing graded early warning; historical data of known groundwater abnormal events are obtained, and adaptive adjustment is carried out on the corresponding adaptive threshold parameters in the previous steps. According to the scheme, a static water level field is converted into a dynamic space-time change rate field, the form change trend of the water level field of the whole area can be obtained, and the problem that only single-point water level change can be obtained in a traditional monitoring method is solved; graded early warning based on different development modes of the dynamic descending area is realized; the method does not depend on geological parameters difficult to obtain, and is simple and easy to implement and low in cost.
Owner:CHONGQING UNIV +1

Underground water level change prediction method and system based on machine learning

The invention discloses an underground water level change prediction method and system based on machine learning, and relates to the technical field of hydrogeology, and the method comprises the steps: carrying out the standardization processing of multi-source time series data, obtaining a standardized multivariable time series data matrix, and constructing a supervised learning sample set; inputting the underground water level sequence in the supervised learning sample set into a physical information guided variational mode decomposition network; decomposing the underground water level sequence into K intrinsic mode component sequences and residual term sequences through a loss function of physical driving consistency constraint; and for each of the K intrinsic mode component sequences, dynamically assembling a differentiable simulator from the differentiable simplified physical simulator basic library, and carrying out cooperative training by taking approximation to each intrinsic mode component sequence and overall reconstruction of the original water level sequence as targets to obtain K completely trained assembled differentiable simulators. According to the method, a reliable visual prediction result is generated through multi-simulator collaborative deduction and uncertainty quantization.
Owner:INST OF KARST GEOLOGY CAGS

Fractured stratum groundwater pollution source positioning method based on deep learning enhanced inversion

The invention discloses a fractured stratum groundwater pollution source positioning method based on deep learning enhanced inversion, and relates to the field of pollution source positioning, and the method comprises the steps: constructing a space-time concentration response data set containing complex physical field characteristics based on hydrogeology and pollution source parameters, and training a deep learning substitution model according to the space-time concentration response data set; the complex groundwater solute transport process is efficiently approximated, so that the problem that traditional numerical simulation consumes too long time is solved. On the basis, an integrated inversion framework is constructed, time sequence concentration data observed on site is combined with a substitution model, and global optimization is carried out by utilizing a genetic algorithm. Not only can a nonlinear high-dimensional parameter space be processed, but also a space-time evolution rule in observation data can be fully excavated, finally, synchronous accurate inversion of pollution source three-dimensional coordinates, dynamic release history and key hydrogeological parameters is achieved, and the defects that a traditional method is low in recognition rate and poor in timeliness under complex geological conditions are effectively overcome.
Owner:ZHEJIANG UNIV

Portable flow velocity measuring instrument for hydrogeology and measuring method

A portable flow velocity tester for hydrogeology comprises a lower half floating ball, an upper half floating ball is arranged above the lower half floating ball, transverse mounting grooves and longitudinal mounting grooves are formed in the faces, close to each other, of the upper half floating ball and the lower half floating ball, a driving plate is arranged in the transverse mounting grooves, a plurality of tooth grooves are formed in the top face of the driving plate, and the tooth grooves are communicated with the longitudinal mounting grooves. The tooth groove is connected with the speed measuring mechanism, a first connecting rope is arranged on the left side of the driving plate, and the first connecting rope is fixedly connected with the driving plate. The full-mechanical flow velocity tester is designed and thrown into water, the water velocity can be obtained by observing the extending length of the velocity measuring rod, and the full-mechanical flow velocity tester does not contain any electronic component such as a sensor, and is low in manufacturing cost and convenient to operate. The problems that an existing flow meter is mostly integrated with electronic components such as a sensor, the manufacturing cost is high, and damage is easily caused by water inflow are effectively solved.
Owner:SICHUAN MINERAL RESOURCES EXPLORATION GROUP CO LTD

Coal mine underground water flow-water quality coupling simulation method under mining disturbance condition

The invention relates to the technical field of coal mine hydrogeology and environmental engineering, and discloses a coal mine groundwater flow-water quality coupling simulation method under mining disturbance condition, which comprises the following steps: step 1, mining disturbance area hydrogeology basic data acquisition: field investigation, drilling sampling, field test and long-term monitoring are carried out to obtain mining disturbance area hydrogeology basic data; the method comprises the following steps: acquiring landform, stratum lithology, geological structure, initial hydraulic gradient, porosity, initial permeability, initial pollutant concentration and hydrogeochemical parameters of a research area, and collecting a coal mining scheme, rock stratum movement observation data and fracture development characteristic parameters; according to the method, the dynamic hydrogeological parameter model is constructed, the water flow-water quality coupling control equation is established, numerical solution and accurate calibration are combined, and accurate simulation of the underground water flow field and the water quality migration process under the mining disturbance condition can be achieved.
Owner:XINJIANG UYGUR AUTONOMOUS REGION GEOLOGY RESEARCH INSTITUTE

Soil environment quality assessment method based on big data

The invention relates to the technical field of environment monitoring and big data analysis, and discloses a soil environment quality evaluation method based on big data. The method comprises the following steps: fusing measured data of soil heavy metals with multi-source heterogeneous data such as remote sensing, terrain, land utilization, hydrogeology and the like; a space-attribute joint constraint depth generation network is constructed, an encoder of the space-attribute joint constraint depth generation network extracts multi-scale features, an attribute physical constraint module is embedded into a convection-dispersion equation to model a heavy metal migration mechanism, and a decoder outputs a high-fidelity concentration field; and dividing four pollution risk grades according to national standards, and generating an evaluation diagram. Through data driving and physical mechanism collaborative modeling, the pollution boundary depicting precision is improved, the prediction error under the low sampling density is reduced compared with a traditional method, the recall rate of a high-risk area is increased, and reliable support is provided for precise soil treatment.
Owner:SHENYANG AGRI UNIV

A coal mining face water inflow prediction method, system, electronic device and medium

The present application relates to a kind of coal face water inflow prediction method, system, electronic equipment and medium, specifically related to the field of mine hydrogeology and mining engineering.The method includes determining the water level difference of aquifer and adjacent aquifer and the mining simulation model of mining area according to the drilling column chart of mining area;According to the mining simulation model, the fracture height and the horizontal distance of the fracture distance of pumping test aquifer are obtained by coal seam mining simulation;According to the fracture height and horizontal distance, the drilling position and rock sample of pumping test are obtained;The vertical permeation speed is obtained by using triaxial servo instrument to operate the rock sample with surrounding pressure;According to the vertical permeation speed, the constant flow of pumping test is obtained;According to the drilling position, constant flow and water level difference, the drawdown of stable aquifer is obtained by non-complete well pumping test;According to the drawdown of stable aquifer, the water inflow is obtained.The present application makes the prediction result of water inflow of mining area more accurate, and reduces cost.
Owner:SHAANXI YISANJIU COALFIELD GEOLOGY & HYDROGEOLOGY CO LTD +2

Geologic surveying and mapping underground water filtering and sampling method

The invention relates to the technical field of hydrogeology, and particularly discloses a geologic surveying and mapping underground water filtering and sampling method, which comprises the following steps of: establishing a time-space consistent characteristic data set by acquiring optical characteristic parameters, electrochemical response signals, suspended matter distribution characteristics and pressure pulsation data of an underground water body in real time; through multi-scale fluctuation feature extraction and synchronism analysis, hydrogeological feature indexes and change rules thereof are identified; constructing an underground hydrogeological characteristic profile taking the sampling depth as a reference, performing matching analysis in combination with a typical hydrogeological mode pedigree, determining representativeness and reliability levels of sampling points, and finally generating a sampling optimization scheme and a quality control report; according to the method, closed-loop control from data acquisition to quality evaluation is realized, the problem of insufficient data representativeness and reliability caused by chemical disturbance and lack of systematic quality control in a traditional sampling method is solved, and the accuracy of underground water sampling data and the reliability of geological interpretation are improved.
Owner:BEIJING ZHONGDI ENG SURVEY & DESIGN RES INST CO LTD

A hydrogeological layered sampling device

ActiveCN224681842UImprove adaptabilityAvoid misalignment and jammingVehicle frameDrive shaft
A hydrogeology layered sampling device, including equipment frame, wheel, tooth pressure plate, internal thread cylinder hand wheel, internal thread cylinder, guide wheel shaft, guide wheel, motor frame, drive shaft, the lower part of the equipment frame is fixedly connected with the wheel, the rear part of the equipment frame is fixedly connected with the push rod, the front part of the equipment frame is fixedly connected with the angle frame, the inside of the angle frame has an angle shaft slot, the side part of the frame is fixedly connected with the angle shaft, the angle shaft slot is adapted to the angle shaft, the angle shaft slot is connected with the angle shaft, the angle shaft rotates in the angle shaft slot, the front part of the angle shaft is fixedly connected with the hand wheel, the rear part of the angle shaft is fixedly connected with the pointer, the rear part of the angle frame has a scale, the pointer corresponds to the scale position, the side part of the angle frame has a sliding slot, and the side part of the angle shaft is fixedly connected with the screw rod seat.
Owner:HEILONGJIANG PENGXIANG GEOLOGICAL SURVEYING & MAPPING CO LTD

Underground water level observation device for hydrogeological exploration

The utility model relates to the technical field of underground water level observation, and discloses a hydrogeological exploration underground water level observation device which comprises a water level gauge body and a mounting frame connected to the outer wall of the water level gauge body. According to the water level gauge, the protective cover is arranged on the water level gauge body, the water level gauge body which is not used can be protected by the protective cover, the elastic cushion layer is arranged on the inner side of the protective cover, impact force generated when the protective cover is collided can be effectively absorbed, damage is effectively avoided, and the water level gauge body cannot be accidentally collided and damaged when being carried outdoors; the protective cover is rotationally connected, when the water level gauge body is used, opening and closing can be achieved only in a rotating mode, and operation is easy and practical.
Owner:THE EIGHTH GEOLOGICAL BRIGADE OF SHANDONG PROVINCIAL BUREAU OF GEOLOGICAL & MINERAL EXPLORATION & DEV (SHANDONG PROVINCIAL EIGHTH GEOLOGICAL & MINERAL EXPLORATION INST)

A groundwater sampling device for hydrogeology

This invention relates to the field of hydrogeology, specifically to a groundwater sampling device for hydrogeology. The device comprises multiple vertically arranged splicing rods, each with a threaded hole at its top and a screw head fixedly connected to its bottom. The screw head engages with the adjacent threaded hole. A circular hole is formed on the top surface of a sleeve plate, which slidably engages with the outer wall of the splicing rod. A motor box is located on one side of the sleeve plate. In this invention, the splicing rods are sequentially spliced ​​and inserted into a well. A welded metal bracket secures the splicing rods to the wellhead. The sleeve plate is lowered to the aquifer using an automatic winch. An electric push rod moves the sampling mechanism, allowing it to drill into the aquifer through the well pipe's filter holes. The sampling mechanism then samples the water flow within the aquifer, improving the accuracy of sampling a single aquifer. After sampling, a filling mechanism can backfill the aquifer with soil, facilitating sampling operations for users.
Owner:HENAN RESOURCES & ENVIRONMENT SURVEY INST CO LTD

A recyclable pressure relief type hydrogeological test device and method

The application provides a recyclable pressure relief type hydrogeological test device and method, and relates to the technical field of hydrogeology. The device comprises a sealing mechanism, a negative pressure main body, a negative pressure execution mechanism, a valve mechanism and a detection mechanism. The sealing mechanism is used for separating and forming a to-be-measured section in a borehole. The negative pressure main body is located between the sealing mechanisms, is internally provided with a working cavity and is in communication with the to-be-measured section through the valve mechanism. The negative pressure execution mechanism is used for adjusting the volume of the working cavity to form negative pressure or drainage reset. The detection mechanism is used for collecting water pressure data in the to-be-measured section. Through hydraulic control, continuous operation of downhole vacuumizing, instantaneous pressure relief, reset and recycling is realized, the device does not need to be taken out of the ground, the test efficiency and data accuracy of deep holes and multilayer aquifers are significantly improved, and the device has compact structure and simple operation.
Owner:CHINA WATER RESOURCES PEARL RIVER PLANNING SURVERYING & DESIGNING

A groundwater level reasonable health value evaluation method based on multi-source data fusion and dynamic threshold

This invention relates to the fields of hydrogeology and water resources management, specifically to a method for evaluating the reasonable health value of groundwater levels based on multi-source data fusion and dynamic thresholds. The method includes the following steps: acquiring monitoring well water levels and multi-source data; dividing water level change periods; identifying trend response relationships and labeling their types; extracting key water levels to generate dynamic thresholds; determining the state and direction of water level shifts; locating abnormal periods and spatial locations; and obtaining a set of groundwater level health value evaluation results. In this invention, change stages are divided by water level inflection points; trend response relationships are constructed by combining multi-source data on rainfall, water intake, recharge, and surface water levels; water level change types are dynamically labeled; key water level values ​​are extracted to form elastic threshold intervals with time-series characteristics; and water level state changes are continuously judged based on these intervals to identify the shift direction and duration. This completes the trend identification and range positioning of groundwater status in both time and space, enhancing the data-driven anomaly identification capability.
Owner:HEBEI WATER CONSERVANCY RES INST

An automatic control system for groundwater sampling and microbial sample pretreatment

The application discloses an automatic control system for groundwater sampling and microbial sample pretreatment, and belongs to the technical field of groundwater environment monitoring. The system comprises a sample collection unit, a microbial pretreatment unit, a sample detection unit, a sample storage unit, a wastewater storage unit and an intelligent control system. The sample collection unit comprises a sampling head, a sampling tube, an air bag pump and a first flow sensor. The microbial pretreatment unit comprises a multi-stage filtration system and a filter membrane storage system. The intelligent control system is used for receiving flow signals and feeding back to adjust the opening and closing of each valve and control pump water parameters. The application provides an automatic control system for groundwater sampling and microbial sample pretreatment based on hydrogeology and monitoring well parameters, Internet of Things sensing technology, self-control valve groups and model algorithm coupling. The system can realize adaptive control and optimization of sampling and pretreatment parameters through multi-source data fusion.
Owner:ZHEJIANG UNIV +1

Karst basin underground water vertical layered resource quantity evaluation method

The invention provides a karst basin underground water vertical layering resource quantity evaluation method, and relates to the technical field of hydrogeology, and the method comprises the following steps: S1, dividing a karst underground water vertical zone, and sequentially dividing a research area into four areas from top to bottom according to stratum lithology, karst development degree and drainage point elevation; s2, calculating the distribution area of each region on the elevation by using the spatial analysis function of arcgis software; s3, according to field survey unified measurement data, spring points with different flows in different areas are selected, and then the spring domain range of each area is delineated, so that the average runoff modulus of each area is determined; s4, recalculating the underground water resource quantity of each region according to the area of each region and the corresponding average runoff modulus; and S5, generating a vertical distribution evaluation result according to the underground water resource quantity of each region. The method can make up the defects of the technology at the present stage by vertically obtaining the water resource quantity, and is suitable for popularization.
Owner:CHINA GEOLOGICAL SURVEY XINING NATURAL RESOURCES COMPREHENSIVE SURVEY CENT

A method, system, device and medium for digitalization of lake water resources

The application provides a kind of lake water resource digitalization method, system, equipment and medium, related to the technical field of hydrogeology monitoring, the method comprises: obtaining the Landsat series image and high-resolution series image of the specified geographical area in the historical time period, carrying out ground-based, ship-based dynamic scanning on each lake in the specified geographical area, and collecting three-dimensional point cloud data and image data of each blank area to realize the linkage and cooperation architecture of "star sky ground ship" full element for the all-round measurement and evaluation of the lake water resources in the region. All related data of each lake are fused to construct a multidimensional database for each lake. Based on the multidimensional database, each lake is visualized to generate a digital lake comprehensive display map for each lake. Since the digital lake comprehensive display map covers the multidimensional data of the lake, it can solve the technical problem of insufficient lake hydrogeological structure survey data in the prior art.
Owner:LANGFANG INTEGRATED NATURAL RESOURCES SURVEY CENTER CHINA GEOLOGICAL SURVEY

Hydrogeological water pumping test device

The invention discloses a hydrogeology water pumping test device, and relates to the field of hydrogeology, the hydrogeology water pumping test device comprises a submersible pump, a water pumping pipe, a flow control water taking component and a water sample receiving device, the flow control water taking component comprises an L-shaped frame, a lifting component arranged at the top of the L-shaped frame and having an execution end penetrating through the L-shaped frame, and a swing pipe hinged to an execution section of the lifting component; the input end of the flow control component is communicated with the outer wall of the water pumping pipe, one end of the flow dividing pipe is communicated with the output end of the flow control component, and the other end of the flow dividing pipe penetrates through the swing pipe; the water sample receiving device comprises a positioning cover, a power turntable arranged in the positioning cover, a bottle moistening and overturning part arranged on the power turntable, and a plurality of sample bottles arranged at the execution end of the bottle moistening and overturning part. According to the device, the functions of sampling, flow control, water quality monitoring, sample pretreatment, packaging and the like are integrated on the ground base, full-process automatic operation is realized by means of programmed control, and the standardization level and the working efficiency of sampling are remarkably improved.
Owner:河南省平顶山水文水资源测报分中心 +1

Hydrogeological monitoring device

The utility model provides a hydrogeological monitoring device which comprises a supporting frame, a group of guide rods are fixed on the outer wall of the top of the supporting frame, the outer walls of the guide rods are connected with sliding blocks in a sliding mode, connecting blocks are fixed on the outer walls of the bottoms of the sliding blocks, a mounting plate is fixed on the outer walls of the bottoms of the connecting blocks, and a shielding cover is fixed on the outer wall of the bottom of the mounting plate. A fixing ring is fixed to the outer wall of the bottom of the shielding cover, a motor is fixed to the outer wall of the bottom of the mounting plate, a winding roller is fixed to an output shaft of the motor, and a signal line is wound around the outer wall of the winding roller. According to the utility model, the limiting cylinder can guide the signal line which is unwound outwards, so that the signal line can pull the monitoring probe to integrally and vertically move towards the inside of the observation well, and meanwhile, the shielding cover is used for shielding the wellhead of the observation well, so that the problem that the signal line shakes due to the fact that airflow is blown into the observation well is avoided; and the monitoring probe can fall to the top of the water surface in the observation well or below the water surface in a vertical and stable state to monitor corresponding data of underground water.
Owner:云南省核工业地质调查院

A groundwater level dynamic regulation method and system based on digital twinning

The present application belongs to the field of hydrogeology and intelligent control technology, and specifically relates to a groundwater level dynamic regulation method and system based on digital twinning, aiming to solve the problems of one-sidedness of traditional regulation and control perception, static model, extensive decision-making and single feedback. The method of the present application comprises: collecting multi-source monitoring data and constructing a data set through cross-scale calibration; constructing a multi-field dynamic coupling digital twinning model, introducing a dynamic coupling coefficient to deduce a risk evolution field; calculating the variation coefficient of the risk value of each physical field based on the risk evolution field to generate a comprehensive risk value; and matching the risk threshold to generate deep and shallow layer regulation instructions. The multi-field dynamic coupling of the present application breaks the static limitation of the model, and the dynamic weight based on the variation coefficient ensures that the regulation and control decision can preferentially respond to the key physical field with high absolute risk level and large spatial fluctuation, realizing the full-area visualization tracking and precise control of groundwater level and geological risk.
Owner:北京市地质调查研究所

Rapid prediction method for DNAPL pollutant migration in underground water based on RRDB-UNet neural network

The invention discloses a rapid prediction method for DNAPL pollutant migration in underground water based on an RRDB-UNet neural network, and belongs to the technical field of polluted hydrogeology. In order to solve the problems of high cost and low efficiency of numerical simulation calculation of two-phase flow in a low-permeability heterogeneous medium, the invention provides a U-Net deep learning structure combining a residual dense module and a space attention mechanism so as to realize efficient prediction of spatio-temporal evolution of a saturation field. The method comprises the following steps: generating a random permeability field through Karhunen-Lolive expansion, and embedding a low-permeability lenticular body structure; carrying out simulation by using COMSOL Multiphysics to generate saturation field time sequence data in batches; an RRDB-UNet neural network model is constructed, and training is carried out; the permeability field and the initial saturation field are used as input, and output of two modes of single-step prediction and autoregression prediction is achieved. Experimental results show that the method can significantly improve calculation efficiency and prediction precision in low-permeability medium two-phase flow simulation, and has wide application prospects in the fields of groundwater pollution remediation, oil exploitation optimization and the like.
Owner:NANJING UNIV

Large-diameter steel casing for complex hydrogeology and construction method thereof

The invention discloses a large-diameter steel casing for complex hydrogeology and a construction method thereof. The construction method comprises the following steps: step 1, construction preparation; secondly, a center steel casing is installed; thirdly, a steel casing guide frame is installed; step 4, constructing a first group of annular steel casings; 5, converting the state of the guide frame; step 6, constructing a second group of annular steel casings; and step 7, circulating construction and acceptance. Through the modular guide frame design, the batch avoidance mechanism and the dynamic fine adjustment function, the positioning precision and construction efficiency of the steel casing are remarkably improved, and the construction cost and the safety risk in the complex environment are reduced.
Owner:HANGZHOU JIANGRUN TECH LIMITED

Underground water and surface water fixed-depth quantitative sampler for hydrogeology

ActiveCN224189602UEasy to sampleAvoid inconvenient problems during collectionThermometer detailsWithdrawing sample devicesSurface waterGroundwater sampling
The utility model provides a depth-keeping and quantitative sampler for underground water and surface water for hydrogeology. The depth-keeping and quantitative sampler for the underground water and the surface water for the hydrogeology comprises a collecting barrel, the top of the collecting barrel is movably sleeved with a positioning frame, and the top of the positioning frame is fixedly connected with a positioning ring. According to the fixed-depth and quantitative sampler for the underground water and the surface water for the hydrogeology, provided by the utility model, by arranging the positioning frame, when deep well water flow sampling needs to be carried out, one end of the pull rope is fixed in the positioning ring, and at the moment, the sampling barrel is started to be put into a deep well, so that water flow enters the sampling barrel through the water inlet; and when the water flow collection is finished, the pull rope is lifted to drive the collection barrel to lift, and the water inlet is sealed by the sealing plate, so that the water flow can be taken out from the interior of the deep well, the problem that the water flow is relatively inconvenient to convey and collect through a pipeline is avoided, and the underground water is conveniently sampled.
Owner:CENT FOR HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CGS

Machine Learning-Based Groundwater Level Change Prediction Method and System

This invention discloses a machine learning-based method and system for predicting groundwater level changes, relating to the field of hydrogeology. The method includes: standardizing multi-source time-series data to obtain a standardized multivariate time-series data matrix; constructing a supervised learning sample set; inputting the groundwater level sequence from the supervised learning sample set into a physically-guided variational mode decomposition network; decomposing the groundwater level sequence into K intrinsic mode component sequences and a residual term sequence using a loss function with physical-driven consistency constraints; for each of the K intrinsic mode component sequences, dynamically assembling a differentiable simulator from a library of differentiable simplified physical simulators, and co-training these simulators with the goal of approximating each intrinsic mode component sequence and reconstructing the original water level sequence as a whole, resulting in K fully trained assembled differentiable simulators. This invention generates reliable, visualized prediction results through multi-simulator collaborative extrapolation and uncertainty quantification.
Owner:INST OF KARST GEOLOGY CAGS

Mine underground water pollution multi-element sensing and intelligent early warning method and system

The application discloses a mine underground water pollution multi-element sensing and intelligent early warning method and system, and the method comprises the following steps: constructing a mine underground water pollution full-element sensing network, collecting pollution source, hydrogeology, underground water dynamic monitoring and environmental correlation data, and storing the standardized data into a unified database. The pollution source, monitoring well and hydrogeology zoning data vector layers are superimposed to generate a pollution risk distribution base containing the correlation of "pollution source-aquifer-monitoring point". A migration model coupling pollution dissolution and seepage is established to quantize the influence weight of elements on pollution diffusion. The pollution concentration time sequence is extracted, and the real-time data sliding window is combined to output the pollution diffusion path, concentration peak value and sensitive target time to arrival by using LSTM. Based on the risk base and the prediction result, the sensitive target grading is combined to form a research conclusion, and the key prevention and control areas and key nodes are determined. The application provides a scientific basis for mine pollution prevention and control.
Owner:HUBEI PROVINCIAL ACADEMY OF ECO-ENVIRONMENTAL SCIENCES(PROVINCIAL ECOLOGICAL ENVIRONMENT ENGINEERING ASSESSMENT CENTER)

Large-diameter steel casing for complex hydrogeology and construction method thereof

The application discloses a complex hydrogeological large-diameter steel casing and a construction method thereof, and comprises the following steps: step one, construction preparation; step two, center steel casing installation; step three, steel casing guide frame installation; step four, first group of annular steel casing construction; step five, guide frame state conversion; step six, second group of annular steel casing construction; and step seven, cycle construction and acceptance. Through modular guide frame design, batch avoidance mechanism and dynamic fine adjustment function, the application significantly improves the positioning accuracy and construction efficiency of the steel casing, and reduces the construction cost and safety risk under the complex environment.
Owner:HANGZHOU JIANGRUN TECH LIMITED

Method and device for determining ecological threshold value of underground water level in arid region and electronic equipment

The invention provides an arid region underground water level ecological threshold value determination method and device and electronic equipment, and relates to the field of ecological hydrogeology, in the method, a first ordered Logit model related to the vegetation coverage level and a second ordered Logit model related to the soil salinization level are synchronously considered, and the first ordered Logit model and the second ordered Logit model are compared with the first ordered Logit model and the second ordered Logit model; the obtained underground water level ecological threshold interval depends on the vegetation coverage grade and the soil salinization grade at the same time, the synergistic effect of the vegetation coverage grade and the soil salinization grade is considered, the soil salinization grade depends on remote sensing image data, the space coverage degree is high, the method is more objective, the ordered Logit model is adopted to process the orderliness of graded data, the method is more scientific, and the method is suitable for popularization and application. And the obtained underground water level ecological threshold interval is good in accuracy and high in precision.
Owner:CENT FOR HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CGS

A method for dynamic prediction of tunnel water inflow

This invention discloses a dynamic prediction method for tunnel water inflow, belonging to the fields of tunnel engineering and hydrogeology. The method first constructs an initial hydrogeological conceptual model; then establishes a dynamic database integrating geological, geophysical, monitoring, and meteorological data; furthermore, it establishes a dynamically coupled prediction model that combines a physical numerical model and a machine learning proxy model; utilizing newly revealed data during construction, it dynamically inverts and updates model parameters through a data assimilation algorithm; the updated model is then used for probabilistic water inflow prediction and risk level classification; finally, the results are visualized and a feedback loop is formed. This invention, through a dynamic update mechanism, enables the prediction model to continuously approximate real geological conditions, solving the problems of low accuracy and poor adaptability of traditional static prediction methods, and significantly improving the ability of tunnel construction to cope with water inflow risks.
Owner:CHONGQING ZHONGHUAN CONSTR

Exploration device for hydrogeology

ActiveCN224120908URealization of dumping phenomenonreduce dumpingMachine framesStands/trestlesGeological explorationMechanical engineering
The utility model relates to the technical field of exploration devices, and provides an exploration device for hydrogeology, which comprises a bottom support and an exploration device main body arranged on the upper side of the bottom support, and further comprises a first electric push rod, a movable disc, a mounting sleeve, a supporting arm, a mounting frame, an auxiliary supporting mechanism and a positioning assembly, the first electric push rod is arranged on the inner top wall of a supporting column in the exploration device body, the telescopic end of the first electric push rod is connected with a moving disc, the moving disc synchronously moves along with the telescopic end of the first electric push rod, and the mounting sleeve is mounted on the outer side of the moving disc through a connecting block and synchronously moves along with the moving disc. By means of the technical scheme, the problems that in the prior art, hydrogeological exploration equipment is difficult to adapt to areas with uneven ground, consequently, the exploration device is difficult to keep stable, the toppling phenomenon is likely to happen, the exploration device often needs to be manually supported, and consequently the exploration device is troublesome to use are solved.
Owner:HEBEI BEIWU GEOLOGICAL EXPLORATION TECHNOLOGY SERVICE CO LTD