43 results about "Ground fissure" patented technology

The invention discloses an unmanned aerial vehicle and robot dog cooperative inspection system, and relates to the technical field of unmanned aerial vehicles, the unmanned aerial vehicle and robot dog cooperative inspection system comprises an unmanned aerial vehicle inspection module, a robot dog inspection module and a cooperative control module, the unmanned aerial vehicle inspection module is used for aerial aerial view of large-scale crowds, and real-time calculation of crowd density, velocity field and congestion hotspots; the robot dog inspection module is used for carrying out close inspection in a ground crack corridor, detecting gait stability and falling individuals in real time, forming a soft boundary to carry out differential diversion guidance and carrying out physical intervention on dangerous situations, and carrying out real-time inspection on the ground crack corridor. The cooperative control module is used for integrating the aerial view angle of the unmanned aerial vehicle and the ground detection information of the robot dog, dynamically updating a routing inspection path and triggering sound-light alarm and linkage guidance when a risk is identified, so that air-ground integrated risk prevention and control are realized, the unmanned aerial vehicle routing inspection module comprises a visual perception unit, and the unmanned aerial vehicle routing inspection system has the characteristic of near execution.

The invention discloses a ground surface settlement and ground fracture monitoring device and method based on distributed fiber sensing (DSS) and fiber bragg grating (FBG). The device comprises a GFRP composite material substrate which stretches across a ground fracture and is fixed on a stable stratum through an anchoring structure, a distributed sensing and temperature measuring optical cable which is pre-embedded in a groove of the substrate, an FBG displacement meter which is connected through a plug-and-play interface, a static force level gauge, an osmometer and other point type sensors, and the data processing unit has the functions of multi-source data acquisition, temperature compensation, data fusion and multistage early warning. According to the method, multi-parameter, distributed and high-precision monitoring of the ground fracture development state is achieved through the steps of field investigation, substrate installation, sensor deployment, system calibration, real-time monitoring and the like. The method has the advantages of high measurement precision, strong anti-interference capability, convenient installation, low cost, capability of predicting the crack propagation trend and the like, and is suitable for long-period safety monitoring of geological disaster frequent areas such as mining areas and landslide areas.

The invention discloses a mining area ground fissure comprehensive measuring device which comprises a calibration frame, a ToF distance measuring sensor, a GPS positioner, an image taking probe and a host, and the sensor and the positioner are detachable parts; two fixing rods of the calibration frame are used for assembling and disassembling the components, and the surfaces of the fixing rods are provided with central points; end blocks are arranged at the two ends of the calibration frame, and supports are arranged at the bottoms of the end blocks; the image acquisition probe can automatically read the width of the crack, and the angle measuring instrument can directly read the reading of the included angle between the horizontal plane where the ground crack is located and the vertical direction; and the ToF distance measuring sensor and the image capturing probe are electrically connected with the crack comprehensive detector host respectively. According to the method, the depth, the opening distance, the dislocation height, the positioning and other information of the ground fracture can be obtained, and the method is of great significance to development of related research work of the fracture.

The invention relates to the technical field of image segmentation, in particular to a coal mine area ground fracture identification method and device. The method comprises the following steps: acquiring a visible light remote sensing image and a thermal infrared remote sensing image of a target coal mine area; constructing a ground fracture data set based on the visible light remote sensing image and the thermal infrared remote sensing image; a ground fracture recognition model is constructed based on the neural network, the ground fracture recognition model comprises a double-branch encoder, a feature extraction module and a decoder, and the double-branch encoder comprises a feature fusion module; iteratively training the ground fracture recognition model according to the ground fracture data set; and performing ground fracture identification on the visible light remote sensing image to be detected and the thermal infrared remote sensing image to be detected of the target coal mine area by using the trained ground fracture identification model to obtain a ground fracture identification result map. According to the method and the device, the visible light and thermal infrared bimodal data are fused, so that accurate identification of the ground fissures is realized in a complex scene of a coal mine area.

The invention discloses a working face staggered layout method, product and equipment for coal mining ground fissures, and belongs to the technical field of mining subsidence and ecological restoration. The method comprises the steps that S1, the overall layout mode of upper and lower coal seam working faces is determined; s2, determining core mining parameters of the working face; s3, determining an external error distance or an internal error distance through numerical simulation; s4, acquiring surface subsidence data and verifying the surface subsidence data; and S5, determining the mining sequence of the upper coal seam working face and the lower coal seam working face according to the layout mode, and designing a whole-process production system to realize the landing of a production scheme. According to the method, the goal of weakening coal mining ground fissure development from the source is achieved by reasonably arranging the working faces of the upper and lower coal seams and adjusting the staggered distance of the working faces of the upper and lower coal seams without abandoning coal pillar resources and increasing the roadway tunneling cost, the ground fissure development degree can be weakened from the source, and the coal mining efficiency is improved. The problems of multiple procedures, long period, poor effect and the like of a traditional method are solved.

The application discloses a model experiment house foundation deformation loading method based on ground fissure morphological change, collects information related to the model experiment, calculates the geometric similarity ratio and the kinematic similarity ratio of the model experiment, investigates the ground fissure at the house position in the field, determines the spatial overlapping relationship and the fissure morphological change stage, determines the initial position of the platform support column and the moving loading mode in combination with the fissure morphological change and the spatial overlapping relationship, and calculates the loading time and the loading rate of the model house foundation deformation. The spatial overlapping relationship between the fissure and the house is comprehensively considered, the simulation experiment result precision of the house deformation damage under the ground fissure is higher, the platform support column moving loading mode is scientifically and comprehensively reflected, and a solid foundation is laid for the subsequent development of the house foundation deformation loading experiment.

The application relates to the technical field of image segmentation, in particular to a coal mine area ground fissure identification method and device.The method comprises the following steps: acquiring a visible light remote sensing image and a thermal infrared remote sensing image of a target coal mine area; constructing a ground fissure data set based on the visible light remote sensing image and the thermal infrared remote sensing image; constructing a ground fissure identification model based on a neural network, wherein the ground fissure identification model comprises a double-branch encoder, a feature extraction module and a decoder, and the double-branch encoder comprises a feature fusion module; iteratively training the ground fissure identification model according to the ground fissure data set; and identifying ground fissures in the to-be-detected visible light remote sensing image and the to-be-detected thermal infrared remote sensing image of the target coal mine area by using the trained ground fissure identification model to obtain a ground fissure identification result map.The application realizes accurate identification of ground fissures in a complex scene of a coal mine area by fusing visible light and thermal infrared dual-mode data.

The invention discloses a ground subsidence and ground fracture optical fiber sensor and an installation method, and the method comprises the following steps: S1, drilling and optical fiber position determination: determining the position of an optical fiber grating in the optical fiber sensor according to a drilled rock core, and determining the proportion of pouring cement according to the components of the rock core; s2, processing the sensing optical fiber: roughening the surface of the sensing optical fiber, and arranging annular cards with openings on the sensing optical fiber at certain intervals; s3, mounting rods and balancing weights, wherein the balancing weights are arranged at the top ends of the mounting rods; s4, an unlocking device is adopted, specifically, in the cement pouring process, the balancing weight is unlocked through the unlocking device; and S5, lowering the sensing optical fiber and pouring cement: according to the mounting condition of the sensing optical fiber, fixing the top end of the sensing optical fiber on a balancing weight or performing arc bending, lowering the sensing optical fiber through a mounting rod, then connecting the mounting rod step by step, injecting cement with different parameters according to the acquired parameters of the rock core, and lifting the mounting rod upwards in the injection process.

The application discloses a kind of coal mining ecological diving protection methods using nano bubble, comprising the following steps: step one: using water-conducting fracture zone prediction method, the development height H of water-conducting fracture zone is predicted;Step two: calculate the development depth h of surface ground fissure;Step three: determine the influence type of coal mining on groundwater, including groundwater rising type, groundwater descending type, groundwater disappearance type;Step four: according to the judgment result of step three, corresponding nano bubble technology is taken for different influence types;Step five: after coal mining adjacent working face, repeat step one to step four, until groundwater aquifer artificial or natural repair stops above steps, realize coal mining ecological environment protection.The application has wider application range, can make full use of atmospheric precipitation, reduce artificial irrigation, environment is relatively friendly, and can also reduce the additional labor intensity of underground special mining operation.

The invention provides an automatic ground crack monitoring method and electronic equipment, and the method comprises the steps: controlling an unmanned plane to execute aerial photography according to a surrounding flight path of a to-be-confirmed region, obtaining a plurality of aerial photography images, determining a plurality of initial recognition frames, initial confidence, a plurality of crack feature blocks and a plurality of convolution feature vectors based on a target detection model, and obtaining a plurality of initial recognition frames, initial confidence, crack feature blocks and convolution feature vectors; determining the weight information of each initial recognition frame according to the plurality of initial recognition frames, the initial confidence, the plurality of crack feature blocks and the plurality of convolution feature vectors, determining the target confidence of each initial recognition frame in the to-be-confirmed area according to the initial confidence and the weight information of each initial recognition frame corresponding to each aerial image, and determining the target confidence of each initial recognition frame in the to-be-confirmed area according to the target confidence. And according to the target confidence of each initial identification frame in each to-be-confirmed area and a preset confidence threshold, generating a ground fracture monitoring result of the to-be-confirmed area. According to the invention, through the unmanned aerial vehicle surrounding aerial photography and the combination of the initial confidence and the weight information, an accurate ground fracture monitoring result is obtained.

The utility model relates to the technical field of geological exploration, in particular to a mining area ground fracture measuring device which comprises a bottom plate. The device further comprises a sliding strip and a depth measuring assembly, the outer portion of the bottom plate is fixedly connected with a fixing nail used for fixing, and the top of the bottom plate is fixedly connected with the sliding strip. After a pressing block is pressed, the pressing block drives a sliding rod to slide in a baffle and pushes a pushing plate to move, a connecting plate is driven by an inclined groove of a limiting block to compress a second spring, and the limiting block is made to be separated from an infinite limiting wheel to relieve limitation; when a straight bar is pushed, a gear II in a mounting box II moves along a toothed plate I to drive the toothed plate II to slide in the mounting box I, so that a test plate on the toothed plate II is close to or far away from each other, and light irradiated to the test plate by a laser ranging device is changed; and after the pressing block is loosened, the spring I pushes the sliding rod to reset, and the spring II pushes the limiting block to relimit the movement distance of the stepless limiting wheel and the fixed test plate, so that the crack width measurement is quickly completed.

This utility model discloses a ground fissure monitoring device, belonging to the technical field of geological exploration equipment. The device includes a first anchor rod, a second anchor rod, a measuring instrument, and a measuring rope. The measuring instrument has a measuring slide, a length measuring scale, a first opening, and a second opening extending into the measuring slide on its outer wall. A measuring slider slides within the measuring slide, and the measuring slider contains a damping element. A measuring pointer is mounted on the measuring slider, extending from the first opening and pointing towards the length measuring scale. The measuring instrument can be fixed to the second anchor rod. One end of the measuring rope connects to the first anchor rod, and the other end passes through the second opening into the measuring slide and connects to the measuring slider. The second anchor rod has a first guide wheel and a second guide wheel, and the measuring instrument has a third guide wheel and a fourth guide wheel. According to this design, geological surveyors only need to periodically read the sliding distance of the measuring slider to directly obtain data on ground fissure changes.

This invention provides a numerical simulation method for surface deformation evolution based on near-field dynamics, comprising: discretizing the geological body model and virtual boundary layer to be calculated into multiple material points to obtain an initial geological body model; obtaining the neighborhood of each material point in the initial geological body model; obtaining the internal force experienced by the material point at the current time step based on the pore water pressure change at the current time step, as the stress on the material point at the current time step; obtaining the displacement of the material point at the current time step using an adaptive dynamic relaxation method based on the stress on the material point at the current time step; obtaining the stress on the material point at the current time step based on the displacement on the material point at the current time step; and determining the fracture status of the virtual bond using the Mohr-Coulomb failure criterion based on the stress on the material point at the current time step, thereby obtaining the local damage value of the material point at the current time step. This invention also provides another scheme capable of revealing the physical mechanism of ground subsidence disasters transforming into ground fissures.

The application discloses a tunnel lining load determination method, system, equipment and medium, and comprises the following steps: acquiring basic design parameters of a subway tunnel; the basic design parameters of the subway tunnel comprise a tunnel outer diameter, a tunnel buried depth, a specific weight of surrounding rock soil, a friction angle of the surrounding rock soil and a cohesion of the surrounding rock soil; determining a design included angle between a tunnel strike line and a ground fissure strike line; calculating an equivalent coefficient of a surrounding rock soil rupture angle on both sides of the tunnel and the surrounding rock soil rupture angle on both sides of the tunnel according to the basic design parameters of the subway tunnel; calculating external force exerted by the surrounding rock on both sides of the tunnel on the subway tunnel lining when the ground fissure is active according to the surrounding rock soil rupture angle on both sides of the tunnel; and obtaining the maximum load of the subway tunnel lining according to the external force exerted by the surrounding rock on both sides of the tunnel on the subway tunnel lining. The application fully considers the influence of the ground fissure activity on the subway tunnel, determines the maximum lining load required in the subway engineering design crossing the ground fissure, and ensures the structural safety of the subway tunnel.

The invention relates to the technical field of pipeline engineering construction, and particularly discloses a pressure pipeline and ground fissure crossing method based on a special well and multi-stage compensation, which comprises the following steps: arranging a reinforced concrete well body in a ground fissure area, and integrating a maintenance channel, a sump and a remote liquid level monitoring device in the well body, a well body is connected with a pipeline through a flexible wall bushing, sealing rings are arranged at the two ends of the flexible wall bushing, the relative displacement compatibility of the well body and the pipeline is ensured, a core section in the well is provided with a large-deflection loose compensation connector, and vertical displacement of ground fissures and axial displacement of the pipeline are compensated. According to the technical scheme, disengaging deformation of the pipeline is effectively avoided, long-term operation stability of the pipeline is guaranteed, and maintenance convenience is further improved.

The invention relates to the technical field of underground water sampling, in particular to an underground water sampling device for hydrogeology, which comprises a case and further comprises a water inlet sampling structure connected with the case, the water inlet sampling structure comprises a cable laying mechanism connected with the case, the cable laying mechanism is connected with a diving moving mechanism, the diving moving mechanism comprises a steering moving part, and the steering moving part is connected with the case. The steering moving part is connected with a water taking shell, and the water taking shell is connected with a camera part; and the gap moving structure is connected with the water taking shell and comprises a frame body, the frame body is connected with a plurality of sets of crawler belt moving parts, the frame body is connected with a clamping guide part connected with the water taking shell, and the frame body is connected with a carrying part. According to the invention, through mutual cooperation of the water inlet sampling structure and the gap moving structure, the device enters underground water through ground cracks and carries out sampling operation, so that the device can conveniently carry out water sampling operation by using the cracks, so that the device can carry out water sampling operation without punching, and the application range of the device is widened.

The utility model provides a sand collecting and seam filling device. The sand collecting and seam filling device comprises a first supporting pipe; the arc-shaped frame is arranged on the first supporting pipe, a filter screen is arranged on the arc-shaped frame, and the arc-shaped frame is used for capturing dust in the environment and ventilating; the air guide empennage is arranged on the first supporting pipe, is arranged opposite to the arc-shaped frame and is used for adjusting the orientation of the arc-shaped frame; the second supporting pipe is rotationally connected with the first supporting pipe, the bottom of the second supporting pipe is used for being inserted into the ground, and the second supporting pipe and the first supporting pipe are coaxially arranged; the sand collecting tank is arranged on the second supporting pipe in a sleeving mode, a tank opening of the sand collecting tank is opposite to the arc-shaped frame and used for collecting sand and dust collected by the filter screen, and the orthographic projection of the arc-shaped frame on the ground is located in the orthographic projection of the sand collecting tank on the ground; one end of the sand guide pipe is communicated with the bottom of the sand collecting groove, and the other end of the sand guide pipe is opposite to a crack on the ground and used for transferring sand and dust in the sand collecting groove into the crack for filling. The sand collecting and crack filling device is simple in structure, convenient to manufacture, capable of effectively filling ground cracks, low in cost and environmentally friendly.

The invention discloses a method for storing and releasing energy and obtaining geothermal energy through artificial stratum cracks. The method comprises the steps that an energy storage geothermal layer containing geothermal resources and not containing oil gas is recognized; high-pressure fluid is injected into a target shaft, so that a target artificial stratum fracture is generated, or a target original stratum fracture in a closed state in the target shaft in the energy storage geothermal layer is opened; normal-temperature high-pressure fluid is injected into the target wellbore, so that the width of the stratum fracture is increased, stratum rock is elastically deformed to store energy, and the fluid in the stratum fracture exchanges heat with the energy storage geothermal layer; when the width of the ground layer crack reaches the target width, the reverse exhaust pipeline is closed to enable the fluid to continuously exchange heat with the energy storage geothermal layer so that the fluid can store heat; and high-temperature and high-pressure fluid reversely discharged in the stratum fracture closing process is used for driving hydroelectric power generation equipment and geothermal power generation equipment to generate power, so that the obtained geothermal energy and the stratum rock elastic deformation energy are converted into electric energy to be released.

The invention discloses a remote sensing image ground fracture recognition method and device, equipment, a medium and a product, and relates to the field of computer vision and remote sensing image processing.The method comprises the steps that an actual satellite remote sensing image of a to-be-recognized area is obtained; identifying the actual satellite remote sensing image by using the ground fracture identification network model to obtain a ground fracture identification result; the ground fracture identification network model is a trained improved U-Net network; the improved U-Net network uses ResNet50 as a skeleton network to extract deep features of data in a coding stage, and introduces an attention mechanism in a decoding stage to improve the extraction effect of earth surface cracks. According to the invention, the ground fracture identification efficiency and accuracy are improved.

The invention discloses a mining area ground fracture measurement system based on improved RetinaNet, and belongs to the field of mining area ground fracture measurement. The system is composed of a data acquisition module, a data processing module, a data calculation module, a data storage module and a data visualization module. An unmanned aerial vehicle is adopted to carry a high-resolution camera to collect ground fracture data, an improved RetinaNet model is used for accurately identifying boundary, form, position and other information of a ground fracture according to a preprocessed image, and the identified ground fracture is measured, calculated and imported into a data storage module; meanwhile, a model generated through deep learning training is stored, and model fine adjustment and optimization are carried out subsequently; and finally, the recognition and measurement results are displayed to the user in the forms of a three-dimensional model, a chart and a data report through a graphical user interface. And a user comprehensively masters the ground fracture detection and analysis process. Through cooperative work of the five modules, automatic identification and accurate measurement of the ground fissures of the mining area are realized, and the method is excellent in processing complex terrains and multi-scale fissure characteristics.

This invention discloses a method and system for simulating ground fissures under pre-existing fracture geological conditions using a coupled FEM-PD model, relating to the field of numerical simulation technology for ground subsidence and ground fissures. The method includes the following steps: constructing a finite element-peripheral dynamics model and initializing its parameters; statically dividing the geological computational domain into a finite element region, a periphery dynamics region, and a coupling transition region; applying pore water pressure changes as an external load to the finite element region; obtaining the global displacement field and stress field by solving the finite element governing equations; applying the global displacement field as a displacement boundary condition unidirectionally to the boundary of the periphery dynamics region; simulating the motion process of material points using an adaptive dynamic relaxation method; and calculating local damage by using the Mohr-Coulomb failure criterion to determine the bond fracture between two material points. This invention innovatively couples the finite element model with the periphery dynamics model, accurately simulating both regional continuity and local discontinuity deformation targets.

The utility model discloses an ultrasonic detector for ground surface crack detection, which relates to the technical field of ultrasonic detectors and comprises a host and a detection probe, a treading mechanism is arranged on the detection probe, the detection probe comprises a transducer and a data line, and the transducer is in data transmission with the host through the data line. The treading mechanism comprises a sliding sleeve, a pedal clamping plate and an elastic band, the sliding sleeve sleeves the outer end of the transducer and is slidably connected with the transducer, a first rotating shaft is arranged at the bottom of the side end face of the pedal, and the pedal is rotatably connected with the sliding sleeve through the first rotating shaft; the upper ends of the elastic bands are fixed to the ends, away from the second rotating shaft, of the clamping plates. The handheld ultrasonic detector has the advantages of being convenient to operate, efficient, stable and convenient to carry, and solves the problems that a traditional handheld ultrasonic detector is inconvenient to operate and low in efficiency and causes burden to the body of an operator.

This invention belongs to the field of geological disaster monitoring technology, specifically disclosing a method and system for quantitative inversion of ground fissures based on optical fiber and independent component analysis. The method includes: acquiring distributed optical fiber time-series strain monitoring data to construct an observation matrix; determining the number of components through principal component analysis; using spatial location as the observation dimension, employing independent component analysis to separate blind sources, extracting spatial independent components and corresponding time score matrices, thus decoupling the ground fissure signal from the background deformation signal; selecting components exhibiting continuous high amplitude as ground fissure strain anomaly components, and setting a threshold based on these components and the background noise level, defining intervals where the amplitude continuously exceeds the threshold as anomaly intervals; within these intervals, numerically integrating the anomaly components along the spatial direction to obtain the quantitative change in ground fissure width. This invention achieves automatic and accurate positioning of ground fissures and highly reliable quantitative inversion of their width under complex geological conditions.

The utility model belongs to the technical field of concrete crack detection, and particularly relates to a concrete crack detection device which comprises a rack, a horizontal adjusting assembly arranged on one side of the bottom of the rack, moving wheels arranged at the bottom end of the horizontal adjusting assembly, a detector host arranged on one side of the top of the rack, and a detection head arranged in the middle of the bottom of the detector host. Through mutual cooperation of the dust removal box, the filter screen, the collection box, the fan, the dust suction pipe, the dust suction cover, the motor, the electric telescopic rod and the cleaning brush disc, the device has a dust removal function, the problem that dust around ground cracks needs to be cleaned manually before the ground cracks are detected by the device is solved, and the device is convenient to use. Through mutual cooperation of the mounting plate, the bolt, the adjusting cylinder, the screw rod, the adjusting seat and the anti-skid particles, the device has a horizontal adjusting function, and the problem that the device is not in a horizontal state during detection, so that the detection result of the device has errors is solved.

The invention provides a non-contact ground fracture monitoring method, device and system fusing multi-source data, and a storage medium. The method comprises the steps of obtaining a two-dimensional visible light image sequence and a three-dimensional depth image sequence of a to-be-monitored ground fracture region; obtaining a two-dimensional plane time sequence deformation vector and a three-dimensional deformation feature sequence of the edge key points of the ground fracture; obtaining a ranging data sequence of ground fracture edge key points; dynamically determining weights of the two-dimensional plane time sequence deformation vector, the three-dimensional deformation feature sequence and the ranging data sequence; establishing a transfer function between the fusion data matrix and a ground fracture target deformation result; and forming an observation data conditional probability based on the sensor measurement error and the corresponding weights of the two-dimensional plane time sequence deformation vector, the three-dimensional deformation feature sequence and the ranging data sequence, and performing maximum likelihood estimation on the observation data conditional probability to obtain a ground fracture target deformation result. By adopting the monitoring method provided by the invention, the ground fracture deformation can be monitored more accurately.

The application discloses an active mountainous coal mining ground fissure reduction method based on isolation trenches, and comprises the following steps: firstly, an initial numerical model is established, an initial ground subsidence curve is obtained, and a ground fissure intensive development position is determined; then, a numerical model under the condition of the ground fissure is established, a ground subsidence curve under the condition of the ground fissure is obtained, and the influence of the ground fissure on the initial ground subsidence curve is studied; then, a plurality of numerical models under the condition of the isolation trenches are established, the influence of the isolation trenches with different parameters on the ground subsidence curve under the condition of the ground fissure is studied, and parameters of the isolation trenches achieving a satisfactory isolation effect are obtained; finally, field construction is carried out according to the parameters of the isolation trenches achieving the satisfactory isolation effect. The application can predict the ground fissure intensive development position in advance through numerical calculation, and the isolation trench is actively set in advance to block the transmission path of the surface deformation and damage caused by the underground coal seam mining in advance.

The application discloses a kind of ground fissure and ground subsidence test device and method simulating multilayer groundwater level change, including box, fixed platform and liftable platform are arranged in the box, the fixed platform and the liftable platform are together with the box is divided into two parts space, space for laying test soil layer is located on the upper surface of the fixed platform and the liftable platform;Several water pipe groups are buried in the test soil layer along the height direction, a main opening and several water holes are formed on each water pipe group, a water supply pipe is connected to the main opening of each water pipe group, each water supply pipe is connected to water supply assembly, each water supply pipe is branched and connected with drain pipe, each drain pipe is connected to pumping equipment, first valve is arranged between water supply assembly and drain pipe on each water supply pipe, second valve is arranged on each drain pipe.

The application discloses a kind of ground fissure zone tunnel lining earthquake response and damage evolution simulation method and equipment, it is related to the field of earthquake engineering.The present application is based on the constructed shaking table model, and a numerical simulation model is established by using the modified lattice spring-discrete crack network coupling numerical method, then, MLSM-DFN model of the ground fissure zone tunnel structure profile is constructed based on the numerical simulation model, and the earthquake response and damage simulation of the ground fissure zone tunnel lining are completed based on this model, the expansion and propagation law of the ground fissure can be completely and truly simulated, the activity development trend of the ground fissure can be accurately predicted and quantitatively characterized, meanwhile, the influencing factors and action mechanism of the coupled dynamics response induced tunnel structure failure can be accurately judged, to better, targetedly carry out tunnel structure seismic design provide more explicit theoretical basis and technical support.

The application discloses a working face staggered layout method, product and equipment for coal mining ground fissures, and belongs to the technical field of mine exploitation subsidence and ecological restoration. The method comprises the following steps: S1, determining the overall layout mode of the upper and lower coal seam working faces; S2, determining the core mining and excavation parameters of the working faces; S3, determining the outer staggered distance or the inner staggered distance through numerical simulation; S4, obtaining the ground subsidence data and verifying; S5, determining the mining sequence of the upper and lower coal seam working faces according to the layout mode, and designing a full-process production system to realize the landing of the production scheme. The application does not discard the coal pillar resources and increase the roadway excavation cost, and through the reasonable layout of the upper and lower coal seam working faces and the adjustment of the staggered distance of the upper and lower coal seam working faces, the development of the coal mining ground fissures can be weakened from the root, the development degree of the ground fissures can be weakened from the root, and the problems of the traditional method, such as many processes, long cycle, poor effect and the like, are solved.