37 results about "Karst water" patented technology

The invention discloses a deep resource fluidized mining disturbance effect evaluation model under a multi-field coupling effect, and the method specifically comprises the following steps: constructing a multi-field coupling parameter system: collecting geologic body basic parameters, covering rock mass mechanical parameters, thermal physical parameters, fluid parameters and chemical parameters in deep three-high, high ground stress, high ground temperature and high karst water pressure environments, and establishing a multi-field coupling parameter system; the method comprises the following steps: establishing a dynamic parameter database, realizing real-time updating of parameters along with a mining process, establishing a heat-flow-force-chemical full-coupling mathematical model, introducing the influence of a rock plastic damage correction term quantification temperature on heat conduction efficiency, associating a dynamic mapping relation between mineral reaction and rock physical property parameters, and establishing a dynamic parameter database. Simplification errors of a traditional model on multi-field effects are thoroughly eliminated, chained interaction of temperature, fluid, stress and chemical processes in a deep three-high environment is accurately described, a model prediction result better fits an actual mining working condition, and prediction deviation is greatly reduced.

The invention relates to the technical field of tunnel engineering safety monitoring, in particular to a karst rock stratum tunnel health diagnosis method, device and equipment and a storage medium. Comprising the steps that whether catastrophe nodes matched with tunnel multi-source sensing data obtained in real time exist or not is judged by searching a karst-lining-surrounding rock coupling knowledge graph; if yes, diagnosis is carried out according to a node embedded karst water-rock coupling mechanism; and if not, calling a preset karst catastrophe fusion model to carry out online learning and dynamic diagnosis, and adding catastrophe nodes in the knowledge graph. According to the fusion model, characteristics such as karst water chemical ion concentration change rate, surrounding rock effective porosity mutation gradient and lining back cavity volume growth rate are extracted, karst water inrush and mud inrush risk probability distribution is output based on multiple neural network model parallel coupling architectures, and high-risk perception data are automatically screened out or marked according to a threshold value. The karst water inrush and mud inrush risk of the karst stratum tunnel can be accurately identified, and real-time early warning can be carried out.

The invention belongs to the technical field of tunnels, and particularly relates to a treatment method for a building door tunnel penetrating a karst underground river reach, which comprises the following steps: step 1, multi-source geophysical prospecting fusion investigation: aiming at the tunnel karst underground river reach and the range of 500m around the tunnel karst underground river reach; the method comprises the following steps of: delineating a karst abnormal area by adopting semi-aviation transient electromagnetism; screening a strong corrosion area by adopting a depression analysis method; verifying parameters of the abnormal area through surface drilling and coring; identifying surface hydrology, lithology and seepage data characteristics through unmanned aerial vehicle-mounted high-resolution multispectral and thermal infrared cooperative remote sensing; karst water dynamic conditions including underground water flow velocity, flow direction and permeability coefficient, corrosion evolution characteristics including cavern forming time and expansion rate, and key physical and mechanical parameters including cavern filler porosity, permeability coefficient, surrounding rock integrity coefficient, uniaxial compressive strength, elastic modulus and Poisson's ratio are obtained. According to the treatment method for the building door tunnel to penetrate through the karst underground river section, the karst space characteristics are clearly presented through the arrangement of the treatment method for the building door tunnel to penetrate through the karst underground river section.

The utility model discloses a karst water-rich tunnel comprehensive prevention and control drainage device which comprises a bottom frame, reinforcing ribs are arranged on the surface of the bottom frame, and one side of the top of the bottom frame is fixedly connected with power supply equipment. The bottom of the mounting moving assembly is fixedly connected with the top of the bottom frame, and the mounting moving assembly is used for quickly mounting and integrally moving the drainage water pump; one end of the filtering assembly is fixedly connected with one side where the moving assembly is installed, the filtering assembly is used for filtering and maintaining dirt sucked in the water pumping process, and the utility model relates to the technical field of drainage devices. According to the comprehensive prevention and drainage device for the karst water-rich tunnel, the movable assembly is arranged, the universal brake wheels and the handle are adopted, the whole water pump body can move rapidly and stably, and the movable pump station is ingeniously arranged at the position of a tunnel face in the tunnel and has the capacity of flexibly moving in the tunneling direction of the tunnel face.

The application provides a karst water flow direction analysis system based on weathered fracture properties, comprising a single well weathered fracture identification module, a fracture property analysis module, and a dynamic and static data verification module for paleo-water flow direction; the single well weathered fracture identification module is to identify the developed fractures by identifying the core and core slice of the coring well, and mainly aims at the weathered fractures in the non-tectonic fractures; the fracture property analysis module is to classify and count the length, occurrence and filling condition of the weathered fractures after identifying the weathered fractures; and the dynamic and static data verification module for paleo-water flow direction comprises static data verification and result verification through single well productivity data. The application can effectively support the restoration of the Ma 5 member karst paleo-geomorphology in the research area by only collecting three types of weathered fracture parameters which are easy to identify.

The invention is applicable to the technical field of tunnel drainage, and provides a drainage device for preventing crystallization of karst water, which comprises a neutralization box arranged in a tunnel and used for adjusting the pH value of the karst water and performing scale inhibition treatment on the karst water, the liquid storage tank is arranged on one side of the neutralization tank and is used for providing a medicament into the neutralization tank; and the water pump is arranged between the neutralization box and the liquid storage box and is used for conveying the medicament into the neutralization box. According to the drainage device for preventing crystallization of the karst water, heavy metal substances in the karst water are adsorbed through the magnet strips, the pH value of the water is adjusted through the neutralization box, the scale inhibitor is added, the karst water is treated from multiple aspects, impurities and heavy metal in the water are effectively removed, water crystallization is delayed, and the drainage water quality is guaranteed; meanwhile, by means of a pH monitoring sensor and a water level sensor, the water quality and water level conditions can be monitored in real time, the agent feeding amount is intelligently adjusted according to the monitoring result, the effectiveness and pertinence of agent use are guaranteed, agent waste is avoided, and meanwhile the treatment effect is guaranteed.

The utility model discloses a high-pressure karst water-rich large section highway tunnel drainage and pressure reduction device, which comprises pressure reduction assemblies arranged along the axis of the tunnel in a mirroring manner and a drainage unit communicated with the two pressure reduction assemblies, the drainage unit is used for draining flowing water generated by the two pressure reduction assemblies, and each pressure reduction assembly comprises a pressure control unit, a pressure control unit and a pressure control unit, the pressure control unit comprises a gravel blind ditch arranged at the position of a tunnel wall foot and extending in the direction away from the axis of the tunnel and a water gathering pipe arranged in the gravel blind ditch. The end, close to the tunnel, of the water gathering pipe is connected with a water pressure valve. The stabilizing unit comprises a plurality of positioning ribs evenly distributed on the peripheral side of the water pressure valve and a plurality of obliquely-arranged locking anchor rods, and the ends, away from the water pressure valve, of the positioning ribs and the ends, away from the water pressure valve, of the locking anchor rods are deeply buried in the rock stratum through concrete; water pressure can be released intelligently according to the water pressure condition, drainage is started automatically when the water pressure reaches a certain degree, the threat of the water pressure in a rock stratum to a tunnel lining structure is effectively reduced, and the lining structure is prevented from being broken down and damaged due to too high water pressure.

The utility model discloses a karst ground subsidence comprehensive monitoring system belongs to ground subsidence monitoring early warning technical field. The comprehensive monitoring system includes underground water pressure monitoring system, soil mass deformation monitoring system and data acquisition system, wherein: underground water pressure monitoring system includes karst water monitoring hole and the first water pressure sensor of setting among them, fourth series water monitoring hole and the second water pressure sensor of setting among them, soil mass deformation monitoring system includes vertical optical fiber monitoring hole and the optical fiber sensor of setting among them, and data acquisition system with first water pressure sensor, second water pressure sensor and optical fiber sensor all electric connection. The utility model selects underground water as the inducing factor of ground subsidence, and simultaneously takes the underground soil mass as the monitoring object, builds the karst ground subsidence comprehensive monitoring system, and multiple monitoring means verifies each other, and is complementary to each other, can provide strong support for the early warning forecast work of karst ground subsidence disaster.

The application discloses a kind of open cut tunnel main body structure suitable for water-rich stratum and construction method thereof, relate to tunnel construction technical field, the main body structure includes prefabricated box structure, the side wall outer surface of prefabricated box structure, bottom plate outer surface reserved recess, recess is filled with foam concrete to form drainage passage by reserved grouting pipe;Two side walls of prefabricated box structure reserved operation hole, and water diversion pipe is reserved to drilling pile through wall reserved operation hole and drilling pile and is punched to spin jet water stop pile and drains karst water;Two sides of the passage bottom of prefabricated box structure are provided with support column, prefabricated pressure plate is laid on support column, prefabricated road surface plate, drainage ditch and cable trench are laid on prefabricated pressure plate, form sandwich with bottom plate, bottom plate reserved drainage pipe intercommunication sandwich and install triple pressure relief system, the right side wall bottom of prefabricated box structure is equipped with one-way drain valve.Utilize the present application, can simultaneously solve karst water runoff protection, structure safety under high water pressure, anti-permeation leakproof, construction efficient, operation and maintenance convenient and so on.

The invention relates to the technical field of water resource scheduling management, and discloses an intelligent water resource dynamic simulation, regulation and control system and method based on karst hydrogeological investigation, and the method carries out the precise measurement of the total water storage capacity of a non-water-storage space structure in karst geology based on the three-dimensional model information of a karst geology space in combination with geologic structure analysis software. The water storage capacity of the karst geographic area is reliably evaluated according to the geological space characteristics of the karst geographic area, and the karst geological water resource scheduling precision is improved; according to the karst geological space three-dimensional model information, an intelligent search algorithm and different water storage rate standard karst geological space structure three-dimensional model information based on big data storage are combined to carry out karst geology water storage scheduling rate scientific analysis, and the water storage rate of a karst geological area is intelligently matched based on karst geological area space characteristics. Intelligent and environment-friendly karst geology water resource dispatching operation is achieved, and the efficiency and accuracy of karst geology water resource dispatching are improved.

The invention relates to the technical field of wireless communication networks, in particular to a karst water dynamic monitoring and management method and system based on the Internet of Things. The method comprises the steps that structural data and environmental parameters of a karst pipeline are collected, a propagation loss model is established, and an initial signal attenuation distribution diagram is generated; recognizing a dynamic change influence area representing geological instability; relay nodes are optimally arranged based on structural data of the area, and communication parameters such as transmitting frequency bands, power and angles of the relay nodes are adjusted, so that the transmission efficiency reaches a target threshold value; the matching degree of the communication parameters and the geological structure is evaluated, and an optimized signal attenuation distribution diagram is generated through simulation; and evaluating stability indexes such as signal loss rate and delay time according to the distribution diagram, and confirming a final layout scheme. The technical problems of large wireless signal transmission attenuation and poor stability in a complex karst environment are effectively solved, and the transmission reliability and real-time performance of monitoring data are remarkably improved.

The application discloses a method for calculating epikarst water storage of karst underground river basin. The method comprises the following steps: S1, collecting epikarst water EW, saturated zone fissure water FW and surface water PW samples, analyzing and determining the representative components, and establishing the representative component relationship of the three samples; S2, selecting a rainstorm period, and continuously monitoring the indexes of the underground river outlet; S3, determining the mixing ratio to calculate the final component; S4, using MIX iteration to recalculate the component value of the final component; S5, calculating the mixing ratio of the three end members in each sample at the underground river outlet; S6, obtaining the flow process curve of each end member; and S7, obtaining the epikarst water storage by integrating the flow process curve of EW. The method is guided by the karst water system theory, and the epikarst water flow process curve is separated from the flow process curve after the rainstorm of the underground river by means of water chemistry and isotopes and the like, so that the epikarst water storage is calculated, and the method is low in cost, convenient and high in precision.

The application discloses a kind of abandoned coal mine well drilling hole cement slurry and mud anti-seepage construction method, comprising the following steps: drilling into the depth of quaternary floor at wellhead, and drilling hole cement slurry at the position 4m-5m below quaternary floor, drilling hole mud at the position 1m-4m below quaternary floor;Continue to drill into 1 / 2 depth of well depth, and drilling hole cement slurry at the position 0m-1m above 1 / 2 depth of well depth, drilling hole mud at the position 1m-4m above 1 / 2;Continue to drill into the depth of well bottom, and drilling hole cement slurry at the position 0m-1m above well bottom, drilling hole mud at the position 1m-4m above well bottom;In the foregoing steps, each time drilling, open downhole television hole, detect in downhole television hole and after the last detection is completed, downhole television hole is lowered into air pipe.The abandoned coal mine well drilling hole cement slurry and mud anti-seepage construction method can block the hydraulic connection of surface pollutants and groundwater, control goaf water pollution problem to karst water layer.

The invention provides a double karst water-containing medium physical model construction method and device, and relates to the technical field of karst geology, and the method comprises the steps: obtaining a real rock core structure; performing three-dimensional scanning on the real rock core structure, inputting a three-dimensional scanning image into a preset three-dimensional image analysis model for three-dimensional reconstruction, extracting a network, and constructing a pore network model; extracting pore structure features based on the pore network model, and constructing a pore network three-dimensional model by inputting the pore network model into a preset multi-physics field coupling model for seepage simulation; according to pore size distribution and permeability difference in the pore network three-dimensional model, determining a space division boundary of the porous matrix block and the karst pipeline to obtain a porous medium structure; and performing integrated forming treatment and physical verification on the porous medium structure to obtain the double karst water-containing medium physical model. According to the method, the problem that a physical model cannot truly reflect capability and engineering applicability is solved.

The application discloses a kind of karst hydrology time series extraction, analysis and semi-automatic method of functional characterization, which comprises: obtaining karst hydrology time series, and pretreatment;Extract flood sample time series from the karst hydrology time series after pretreatment;From flood sample time series, determine flood peak position, extract attenuation process according to flood peak position;Extract functional characterization from flood sample time series, including: Gaussian fitting is carried out to attenuation process, and attenuation coefficient is extracted in segments to extract effective functional characterization information.The application obtains the flood peak process of long time series of karst spring groundwater in the same region quickly by semi-automatic method, and then can carry out other frequency or time domain statistical analysis work on the basis, and obtain more dynamic characteristics of karst groundwater.

The invention discloses a hierarchical design and emergency management method for a deep-buried highway tunnel in a strong karst development area, and aims to solve the problem of high water pressure faced by tunnel construction and operation periods in a karst water-rich area. The maximum bearable water pressure of the lining is determined by combining the fluid mechanics principle and finite element numerical simulation, and grading response measures are made according to the water pressure grade. Meanwhile, the specification of the drainage pipe is calculated based on the Bernoulli equation, a real-time monitoring and emergency management system is established, and tunnel structure safety and ecological environment protection are ensured. According to the method, through combination of prevention and drainage and hierarchical management, accurate control over the tunnel water pressure is achieved, ecological damage caused by excessive loss of underground water is avoided, and engineering economy and safety are remarkably improved. The method is suitable for the deep-buried highway tunnel in the strong karst development area, has wide popularization value, and provides scientific basis and technical support for tunnel design and operation under complex geological conditions.

This invention discloses a detection system and method for urban karst water-conducting channels based on seismic Krauklis waves, comprising a piezoelectric controllable source, an array-type seismic receiving system, and a multi-wave seismograph. The piezoelectric controllable source is used to generate seismic waves; the multi-wave seismograph is used to acquire seismic data collected by various seismic acceleration sensors in the array-type seismic receiving system. This structure ensures the accuracy of data acquisition for each seismic wave. The acquired seismic wave data is first separated and extracted using an energy-frequency dual-selection method. Then, based on the dispersion characteristics of Krauklis waves, a mapping model between crack aperture and wavefield response is established. Finally, according to the mapping model, the aperture of the urban karst water-conducting channel is determined, and the dynamic flow rate of the urban karst water-conducting channel is obtained through inversion. This method enables the monitoring of the aperture and dynamic flow rate of urban karst water-conducting channels, ultimately effectively improving the prevention and control of hidden geological hazards.

The application discloses a karst water disaster prediction method and device based on cloud processing, and relates to the technical field of intelligent detection. The method comprises the following steps: deploying a karst water disaster monitoring Internet of Things in a monitoring area, collecting real-time multi-source heterogeneous monitoring data of the monitoring area based on the karst water disaster monitoring Internet of Things, and transmitting the real-time multi-source heterogeneous monitoring data to a cloud server; cleaning the real-time multi-source heterogeneous monitoring data on the cloud server, and performing dynamic time window alignment based on mutual information analysis to obtain preprocessed real-time standard monitoring data; inputting the preprocessed real-time standard monitoring data into a karst water disaster prediction model constructed based on a deep learning algorithm and a multi-objective optimization algorithm, performing karst water disaster prediction, and obtaining real-time karst water disaster prediction results; and performing graded early warning release according to the real-time karst water disaster prediction results. The application solves the problems of poor multi-source data fusion, difficult time lag alignment, difficult model training under a small sample, and difficult balance between cloud real-time performance and accuracy in the prior art.

The invention discloses a karst tunnel water disaster comprehensive treatment structure and a construction method thereof. The treatment structure comprises a karst cave inner water elimination area, a tunnel lining outer waterproof diversion layer, an emergency diversion drainage system and a remote monitoring system which are sequentially constructed. The construction method comprises the steps that a construction channel is formed, slag removal and shaping are conducted, and the natural water elimination capacity of the karst cave is recovered; a concrete waterproof leveling layer with the high outer portion and the low inner portion is poured, and karst water is guided to be directionally collected; construction vertical pressure relief holes are formed in sewage ditches on the two sides of the route to release water pressure; transverse drainage ditches are built below the road surface, water diversion transverse holes are built between the left and right holes to communicate with central drainage systems of the left and right holes, and an integral emergency drainage network is formed; and finally, the lining is recovered, and video monitoring is installed. The problems of lining water seepage, pavement upheaval and the like caused by blockage of a karst tunnel drainage system and water pressure accumulation under the rainstorm condition are solved through comprehensive treatment means of clearing, guiding, drainage, drainage and monitoring, and the structural safety and disaster resistance of the karst tunnel in the operation period are improved.

The application discloses a deep resource flow state mining disturbance effect evaluation model under multi-field coupling, and specifically comprises the following steps: multi-field coupling parameter system construction: collecting geological body basic parameters under deep "three high" environment, i.e. high ground stress, high ground temperature and high karst water pressure, covering rock mass mechanical parameters, thermophysical parameters, fluid parameters and chemical parameters, establishing a dynamic parameter database, realizing real-time updating of parameters along with the mining process, constructing a thermal-flow-force-chemical full-coupling mathematical model, introducing a rock mass plastic damage correction term to quantize the influence of temperature on thermal conduction efficiency, correlating mineral reaction and rock physical property parameter dynamic mapping relationship, completely eliminating the simplification error of traditional models on multi-field action, accurately depicting the chain interaction of temperature, fluid, stress and chemical process under the deep "three high" environment, making the model prediction result more in line with the actual mining working condition, and greatly reducing the prediction deviation.

The application relates to the technical field of water conservancy and hydropower engineering and discloses a dam shoulder karst underground river drainage and horizontal pressure relief system and a construction method, the dam shoulder karst underground river drainage and horizontal pressure relief system comprises an underground river pipeline blocking module used for filling the underground river pipeline and forming a water retaining structure; an underground river water drainage and removal module used for connecting the water bodies inside and outside the mountain and realizing flow transfer of the water bodies; a karst gas passage module used for connecting the gases inside and outside the mountain and realizing flow transfer of the gases; the underground river water drainage and removal module and the karst gas passage module form a gas passage and horizontal pressure relief structure, and the gas passage and horizontal pressure relief structure keeps the water balance between the inside and outside of the mountain based on the principle of a communicating vessel. The construction method is based on the dam shoulder karst underground river drainage and horizontal pressure relief system. Through cooperation of the three modules, multiple functions such as drainage, gas passage and horizontal pressure relief are realized, the gas passage and horizontal pressure relief structure based on the principle of a communicating vessel is formed, is used for drainage during the construction period and water and gas balance during the operation period, and is used for processing the dam shoulder karst underground river passage, so that the influence of karst water and gas on the dam is effectively solved.

This invention discloses a construction method for a large semi-filled karst cave in a karst tunnel. The method includes the following steps: first, applying wire mesh and shotcrete to the cavity area of ​​the karst cave wall for protection; then, installing grouting pipes on the tunnel face, surrounding rock, and non-cavity areas of the karst cave wall, and injecting cement-water glass double-liquid grout into the surrounding soil for reinforcement, ensuring the stability of the karst cave during construction, avoiding the formation of a large plastic zone during tunnel excavation, and simultaneously blocking water; filling the karst cave below the tunnel with slag, preserving the original karst pipes, and installing C20 concrete backfill and C35 reinforced concrete slabs across the karst cave to prevent uneven settlement of the tunnel; draining karst water in the karst cave section in two parts, relying on the original karst pipes and the tunnel drainage system respectively, to avoid excessive load on the tunnel support system due to excessive water pressure inside the karst cave; and adding a steel-framed concrete arch on the outside of the tunnel's initial support to prevent unstable falling rocks inside the karst cave from causing impact loads on the main tunnel support structure.

This invention relates to a method and device for intelligent identification of mine water based on multispectral fusion, belonging to the field of coal mine hydrogeology and safety monitoring. This method aims to solve the problems of poor timeliness, low accuracy, and weak anti-interference ability in existing mine water source identification methods. The technical solution involves simultaneously acquiring near-infrared and Raman spectra of the water source and extracting features. Then, based on the physical and environmental characteristics of the water body, the matching degree of each spectral feature is evaluated. Furthermore, the features are weighted and fused based on the credibility of this matching degree. Finally, the fused features are input into a trained identification model to output the water source type and risk level. This invention can effectively reduce environmental interference and achieve rapid and accurate identification and early warning of various water sources such as old workings water, karst water, and polluted water bodies, thereby improving the mine water hazard prevention and control capabilities.

The utility model relates to a kind of experimental device of the influence of surface water pollutant on karst groundwater quality, belong to groundwater simulation experimental device technical field, including river main body, water supply circulation driving device, groundwater fixed head device and groundwater pressure measuring device.The utility model can simulate the influence of surface water pollutant on karst groundwater quality under the different recharge-discharge relationship of surface water and multilayer groundwater, and the water level relationship corresponding to different recharge-discharge relationship includes: surface water>porous water>karst water, surface water>karst water>porous water, porous water>surface water>karst water, porous water>karst water>surface water, karst water>porous water>surface water, karst water>surface water>porous water.It can simulate the influence of surface water pollutant on groundwater under different surface river property conditions, and can simulate the influence of surface water pollutant on groundwater under different aquifer property conditions.

This invention relates to the field of wireless communication network technology, specifically to a method and system for dynamic monitoring and management of karst water based on the Internet of Things (IoT). The method includes: collecting structural data and environmental parameters of karst pipelines; establishing a propagation loss model and generating an initial signal attenuation distribution map; identifying areas affected by dynamic changes characterizing geological instability; optimizing the deployment of relay nodes based on the structural data of these areas, and adjusting their transmission frequency band, power, angle, and other communication parameters to achieve a target transmission efficiency threshold; evaluating the matching degree between communication parameters and geological structure, and generating an optimized signal attenuation distribution map through simulation; evaluating stability indicators such as signal loss rate and delay time based on this distribution map, and confirming the final deployment scheme. This invention effectively solves the technical problems of large attenuation and poor stability of wireless signal transmission in complex karst environments, significantly improving the reliability and real-time performance of monitoring data transmission.

The invention relates to the technical field of karst geological engineering, and particularly provides a karst reservoir leakage prediction method and system, and the method comprises the steps: obtaining a plurality of pieces of geological feature evaluation information of a target region; for each piece of geologic feature evaluation information, grading the geologic feature evaluation information based on the influence degree of the corresponding engineering geologic feature on the leakage risk, and generating a feature risk grade; constructing a feature vector of the target area based on the feature risk levels of the plurality of engineering geologic features; constructing a sample data set, and performing training and parameter tuning on the constructed prediction model based on the sample data set to obtain a trained final prediction model; and inputting the feature vector of the target area into the final training model to obtain the predicted leakage amount of the karst reservoir in the target area. According to the karst reservoir leakage prediction method and the karst reservoir leakage prediction system, accurate and rapid prediction of the karst reservoir leakage is realized by means of the machine learning algorithm through structured and refined representation of complex causes of the karst reservoir leakage system, and reliable support is provided for engineering decision making.

The present application provides a kind of pore fissure karst water source place three water threshold early warning method based on multi-source data, combines machine learning time series prediction model to excavate groundwater dynamic change trend, realize early warning threshold dynamic self-adaptive correction, effectively solve the problem that fixed threshold cannot adapt to groundwater system dynamic evolution.Finally, according to real-time monitoring data and dynamic threshold, real-time comparison and discrimination is carried out, multi-element grading precision early warning is realized, sufficient emergency disposal window period can be reserved, groundwater level anomaly, water pollution, water resources depletion and related irreversible geological environment problems are effectively prevented, and all-round, fine and dynamic safety warning of pore fissure karst composite water source place is realized, which ensures the rational development of groundwater resources and ecological environment safety.

The invention provides a complex karst tunnel hydrogeological survey method and system, and relates to the technical field of geological survey, and the method comprises the steps: dividing vertical zones of a karst tunnel, and obtaining karst water system hydrogeological parameters; according to the vertical zoning of the karst tunnel, the deep karst development characteristics are positioned; on the basis of the positioned deep karst development characteristics, the permeability coefficient of the fracture zone of the karst area is obtained; analyzing underground water flow field characteristics in combination with hydrogeological parameters; dividing the boundary of a karst water system according to the characteristics of the underground water flow field and the development characteristics of the positioned deep karst, and circling a water catchment range; based on the catchment range and the permeability coefficient, the water inflow is calculated, and karst tunnel water inrush risk sections are divided; and constructing a karst water system three-dimensional geologic model of the full life cycle of the karst tunnel, carrying out groundwater flow field three-dimensional simulation, and evaluating the dynamic water gushing risk of the karst tunnel. According to the invention, fine detection of the hydrogeological conditions of the ultra-long deeply-buried complex karst tunnel can be carried out.

The present application relates to the technical field of tunnel karst defect detection, and discloses a tunnel karst defect fine detection and scale matching construction method, comprising the following steps: step S1, before the construction of a karst tunnel, adopting a semi-airborne transient electromagnetic exploration method and a depression analysis method to conduct geological investigation on the mountain of the proposed tunnel, regional karst water power conditions and dissolution evolution; step S2, during the construction of a karst tunnel, adopting a combination of TSP method and geological radar method to increase the prediction content of vault cave, surrounding cave and floor cave; step S3, before the exposure of a solution cavity, regulating the karst drainage channel, and taking reinforcement measures to block and control the migration of the solution cave filling; step S4, after the exposure of a solution cavity, adopting a tunnel three-dimensional space measurement technology to accurately determine the solution cavity, and establishing a solution cave-tunnel combined structure scale matching effect stress analysis model; step S5, after the treatment of a tunnel karst, establishing an automatic monitoring and measurement system, and making a safety early warning.

This invention relates to a method and system for evaluating mining safety based on karst water level monitoring of the coal seam floor. The method includes: collecting surface water level monitoring data and underground water pressure monitoring data; converting the surface water level monitoring data into surface water pressure data, correcting the underground water pressure monitoring data, and calculating the thickness of the aquitard from the coal seam floor to the roof of the carbonate-bearing aquifer; calculating the water inrush coefficient at each water level monitoring hole and each water pressure monitoring hole; drawing contour lines of the water inrush coefficient using the pan-kriging spatial data interpolation method; and delineating safe mining areas and water inrush hazard zones according to established evaluation principles. This invention takes the working face or mining area as the object, calculates the water inrush coefficient by establishing corrected water level and water pressure calculation formulas, and draws contour lines of the water inrush coefficient using the pan-kriging interpolation method, delineating the water inrush hazard zone and non-water inrush zone, which can provide a more reliable basis for evaluating the mining safety of coal seams affected by karst water hazards.