57 results about "Geohazard" patented technology

The invention discloses a test bed device for a tunnel excavating and grouting model and an application method of the device. The test bed device comprises a lateral wall, a head cover for providing and loading a crustal stress platform, and a bottom plate arranged at the top of a reinforced concrete support rack, wherein the lateral wall vertically stands on the bottom plate and is connected with the bottom plate; the head cover is arranged at the top of the lateral wall and connected with the lateral wall; the lateral wall is formed by a plurality of model ring units which are stacked together in the vertical direction and sequentially connected; two round holes are formed in tunnel design positions in the diameter directions corresponding to the model ring units; the round holes are plugged by using arc sealing steel plates which are the same as the lateral wall in radian before tunnel excavation; holes are formed in the positions at four corners of the arc sealing steel plates; the arc sealing steel plates are connected with the lateral wall. By adopting the device, the geological disaster generation process and the later grouting reinforcing process in the tunnel excavation process can be continuously and systematically simulated, and the device has the advantages of being high in strength, and convenient to assemble and dismantle by adopting a modular assembling mode.

The invention discloses a predicting method, device and equipment of a geological hazard. The predicting method comprises the steps of: acquiring monitoring data, which comprises the direct impact factor and the indirect impact factor, of a monitored area, extracting features of the direct impact factor and the indirect impact factor so as to acquire a direct feature matrix and an indirect featurematrix, and, encoding and decoding the direct feature matrix and the indirect feature matrix based on a deep learning network model containing an attention mechanism, so as to predict the geologicalhazard of the monitored area according to the output of the deep learning network model. The method provided by the technical scheme of the embodiment of the invention divides the monitoring data intotwo groups and combines the deep learning network model containing the attention mechanism to process the data, so as to predict the geological hazard; and thus, the short-term prediction of the geological hazard is realized, and the prediction precision is high.

The invention discloses a simulation test platform for a high-altitude landslide debris flow anti-impact blocking structure, and relates to the technical field of geological experiments and geologicaldisaster prevention and control. The platformcomprises hoisting equipment (1), a sliding block (2), a first-stage sliding groove support (3), an inclined hydraulic lifting platform (7), an automatichydraulic lifting platform (8), a protective wall (9), a ground anchor trench (11), a drag reduction recycling pool (12) and a multi-stage sliding groove. The multi-stage sliding grooves comprise thefirst-stage sliding groove (4), the second-stage sliding groove (5) and the third-stage sliding groove (6) from top to bottom. The platformcan be built in a nearby place, and pile forest dams, pile beam dams and other test models can be installed in ground anchor ditches; large-scale and even full-scale impact tests of various anti-impact blocking structures can be achieved on the same platform, the test site is not limited by the site environment, anti-impact blocking tests and data acquisition can be conveniently and repeatedly conducted, and the cost can be controlled. According to the invention, various automatic hydraulic lifting platforms are additionally arranged, so that the movement of debris flow under various angle combination working conditions can be simulated.

The invention relates to a submarine landslide evolution process simulating system and experimental method based on transparent soil and a rotating water tank, and belongs to the technical fields of marine geological disasters and geotechnical engineering experiments. The simulating system comprises a rotating water tank system, a transparent soil simulating system and a control and data collection system. The rotating water tank system sets different speeds for a sample by means of a control motor, and a closed circular ring structure of a U-shaped section rotary drum groove satisfies that the sliding distance is not limited; the transparent soil simulating system prepares a transparent sample, with a tracer coloring agent, and fluid environment whose physical mechanical property is the same with that of a real submarine soil layer, so that the internal, external and water-soil interface is visualized in a 3D way in the whole sample evolution process; and the control and data collection system realizes quantitative monitoring and data extraction of the evolution process by means of 3D laser slicing and digital image collection. The provided system is controllable in the scale, visualized in the evolution process, capable of measuring image data, and can solve the problems that a long-distance evolution experiment is hard to carry out, data acquisition is difficult, and a monitoring picture is not clear.

An urban slope geologic disaster risk evaluation visual display method includes following steps: step 1, picking out all slopes probably causing geologic disasters in a target area, wherein the geologic disasters refer to serious damage caused to disaster-stricken objects by geologic motion; step 2, evaluating slope danger grade of each slope, and evaluating grade of damage caused to disaster-stricken objects probably existing around each slope when the slope is in geologic motion; step 3, determining risk grade in a danger and damage matrix according to the sum of the danger grade and the damage grade which are acquired by evaluation; step 4, marking and showing each slope with the risk grade determined on a geologic information map. Through a carrier of a geologic disaster risk evaluation visual product, risk of slopes in front and rear of own houses can be known clearly and visually; multiple risk factors are taken into consideration for comprehensive evaluation, so that risk and possible damage of landslide within jurisdiction are known comprehensively and accurately.

The invention discloses a method for explaining active fault moving strength and growing directions through an artificial earthquake. The method comprises the steps that firstly, active fault growing tendencies are determined; secondly, active fault moving strength is determined. According to the method, characteristics and laws of an active fault can be found, changes of the characteristics and laws of the active fault can be predicted, and the method has importance significance in reducing geological disasters caused by the active fault and guaranteeing long-term living and development of human beings; in terms of research on moving relationships between earthquakes and modern constructions, the method can promote development of seismology and improve earthquake prediction scientificity; because the active fault has close relationships with coal mine safety production, the method can be adopted to explore extension and distribution characteristics of the active fault, prevent shafts and roadways from being built on an active fault zone and provide reliable geological evidence to coal mine construction.

The invention discloses expansive soil improved by waste straw ash and marble ash and a preparation method and an application thereof in construction and belongs to the technical field of geological disaster treatment and geotechnical engineering. The preparation method includes the following steps: 1 weighing straw ash, marble ash and dry soil of a soil body needing improving according by mass percent and evenly mixing; 2 determining the optimum moisture content of mixed soil; 3 adding water into the mixed soil obtained in step 1, evenly stirring the mixture and covering the soil in a wet mode to obtain the improved soil. The application of the improved soil in the construction includes laying the obtained improved soil on a construction face to form a surface improved layer, statically pressing the surface improved layer through a light packer, covering a plastic film to conduct enclosed maintenance, conducting vibrating grinding, conducting plastic film covering maintenance, conducting static pressing through a heavy packer and conducting fine flattening to achieve the strength required by a project. By means of the expansive soil, the preparation method and the application, the damage problem caused by expansion and contraction of the expansive soil and the environment pollution problem caused by wastes can be effectively solved.

The invention relates to the technical field of geological disaster model experiments, in particular to a device for acquiring test data of a landslide retaining structure and a method thereof, the device comprises a slide body material, a support structure, a slide bed material, an anti-slide pile and a data acquisition mechanism, the slide body material is used for simulating a side slope; the support structure is used for supporting the slide body material; the slide bed material is used for simulating bedrock, the slide bed material is arranged on one side of the bottom of the slide body material, and the slide bed material can move towards the other side of the slide body material; the bottom of the anti-slide pile is fixedly arranged in the slide bed material, and the top of the anti-slide pile is arranged in the slide body material in a penetrating manner; and the data acquisition mechanism is used for acquiring test data of the landslide retaining structure. According to the method, an anti-slide pile model reversely extrudes the slide body material, the cost and the construction difficulty are reduced, and the accuracy of the data is guaranteed by processing the test data.

The invention mainly relates to the technical field of landslide monitoring. The invention discloses a projection type landslide monitoring device. The device mainly comprises a nose cone, a reducingcoupling cavity, a load cabin and empennages, wherein the top end of the nose cone is of a conical structure, the bottom end is coupled with a reducing port of the reducing coupling cavity, the inneris hollow, the load cabin is arranged at the other end of the reducing coupling cavity, the empennages are arranged on the left and right sides of the load cabin respectively, an infrasound sensor, adata acquisition module, a communication module and a lithium battery are arranged in the load cabin, the lithium battery is used for supplying power, the infrasound sensor monitors the sound wave, the data acquisition module acquires infrasonic wave signals, the acquired infrasonic wave signals are transmitted to the central server through the communication module. The unmanned aerial vehicle isused for carrying the projection type landslide monitoring device, so that an operator can work far away from a geological disaster site, the safety problem of the operator is solved, meanwhile, the projection type landslide monitoring device can be deployed in a short time, and the timeliness of geological disaster monitoring is improved.

The invention discloses a pipeline geological disaster protection device and an installing and using method thereof. The device comprises a supporting base, a lateral buffering wall, pipeline fixing clamps and a buffering layer. The supporting base comprises a sliding rail structure, a first base, a plurality of pressure springs, a plurality of stable pull rods I, a plurality of stable pull rods II and a second base. The lateral buffering wall comprises an L-shaped steel plate and a plurality of pressure springs. Through the arrangement of the compressible supporting base and the sliding railstructure, the lateral buffering wall and the pipeline fixing clamps on the supporting base, when a pipeline is mostly subjected to inclined impact force from landslide and falling stone, sliding in the horizontal and vertical direction can be achieved within the pipeline deformation extreme range, the supporting base and the lateral buffering wall are used for bearing component force in the horizontal direction and the vertical direction and absorbing energy, good pipeline landslide and falling stone impact preventing effects are achieved, meanwhile, cost is low, arrangement is flexible, andconstruction is convenient.

The invention discloses a physical model for longitudinal-penetration landslide geological disasters of oil and gas pipelines and an experimental method. The physical model comprises five parts including an experimental model main body structure, a rainfall mechanism, an observation mechanism, a pipeline mechanism and a bearing mechanism. By virtue of the efficient cooperation among the experimental model main body structure, the rainfall mechanism, the observation mechanism and the pipeline mechanism, the landslide state of a landslide mass is influenced by changing the rainfall degree, and then the damage condition of the landslide mass on pipelines at different states is simulated, so that the damage law of the oil and gas pipelines which are distributed in a longitudinal penetration manner is obtained, and the powerful support is provided for the selection of field protection measures of the oil and gas pipelines.

The invention relates to a method for jointly treating an open pit through waste rocks and dry tailings, and belongs to the field of mine open pit backfilling treatment. The method comprises the steps that the bottom of the open pit is backfilled with a waste rock layer 2, dry tailings obtained after dehydration and filter pressing are conveyed to the waste rock layer 2 and are compacted to form a dry tailings layer 3, and the waste rock layer 2 and the dry tailings layer 3 are stacked alternately; an initial dam 4 is laid on the stacking layer of the waste rock layer 2 and the dry tailing layer 3, and dry tailing piles 3'are stacked on the upstream of the initial dam 4 in a layered mode in an inverted mode; a waste rock heap 10 is stacked on the periphery of the dry tailing heap 3'stacked in the middle layer in an inverted mode till the top face of the waste rock heap 10 is bordered with the top face of the dry tailing heap 3 '; a drainage prism 5 is laid on the periphery of the waste rock pile 10; and an inverted filter layer 6 is constructed between the waste rock heap 10 and the drainage prism body 5. The risk of landslide, debris flow and other secondary geological disasters caused by instability of the open-air side slope can be reduced, safety accidents caused by tailing leakage and dam break can be avoided, and safe stockpiling of the waste rocks and the tailings is achieved.

The invention discloses an anchoring device for preventing landslide geological disasters, and relates to the technical field of landslide treatment. The anchoring device comprises an anchoring pipe;a bottom pipe is fixedly connected to the lower end of the anchoring pipe; the anchoring pipe is internally provided with a fixing rod; a slope side anchoring head is fixedly connected to the upper end of the fixing rod through a connecting member; a plurality of clamping block notches are formed in the peripheral side surface of the anchoring pipe; clamping blocks are rotatably connected into theclamping block notches through fixing pins; a plurality of sliding block notches are formed in the lower end surface of the bottom pipe in a circular array mode; and sliding blocks are slidably matched in the sliding block notches. The anchoring device is provided with the anchoring pipe and the bottom pipe, and the sliding blocks and an ejection column are arranged on the bottom pipe; the clamping blocks are rotatably connected to the anchoring tube, and the fixing rod is arranged in the anchoring pipe; and the problem that an anchoring effect fails due to the fact that an existing anchor rod is prone to moving or being pulled out when being subjected to stress due to the fact that the anchoring rod is not prone to being fixed is solved.

The invention discloses a landslide geological disaster remote sensing interpretation method and device, equipment and a storage medium, and is used for solving the technical problem that an existing landslide geological disaster remote sensing interpretation method is poor in recognition and extraction effect. The method comprises the following steps: acquiring a plurality of original remote sensing images of a target area; preprocessing the original remote sensing image to obtain a preprocessed image; extracting landslide geological disaster marks from the preprocessed image, and generating an initial interpretation map by using the landslide geological disaster marks; and correcting the initial interpretation map to generate a landslide geological disaster remote sensing interpretation map.

The invention discloses expansive soil improved by waste straw ash and marble ash and a preparation method and an application thereof in construction and belongs to the technical field of geological disaster treatment and geotechnical engineering. The preparation method includes the following steps: 1 weighing straw ash, marble ash and dry soil of a soil body needing improving according by mass percent and evenly mixing; 2 determining the optimum moisture content of mixed soil; 3 adding water into the mixed soil obtained in step 1, evenly stirring the mixture and covering the soil in a wet mode to obtain the improved soil. The application of the improved soil in the construction includes laying the obtained improved soil on a construction face to form a surface improved layer, statically pressing the surface improved layer through a light packer, covering a plastic film to conduct enclosed maintenance, conducting vibrating grinding, conducting plastic film covering maintenance, conducting static pressing through a heavy packer and conducting fine flattening to achieve the strength required by a project. By means of the expansive soil, the preparation method and the application, the damage problem caused by expansion and contraction of the expansive soil and the environment pollution problem caused by wastes can be effectively solved.

The invention discloses a landslide disaster emergency monitoring method based on a ground-based radar. The landslide disaster emergency monitoring method comprises the following steps: surveying andselecting points and arranging on site; performing data acquisition: setting observation parameters of a ground-based radar, and determining observation time and an observation range of landslide dataacquisition; performing data transmission: establishing a data transmission network; interference processing: utilizing GAMMA software to carry out interference processing on two adjacent scene imagedata to obtain an interference pattern; phase unwrapping: filtering the interferogram, selecting a starting point of phase unwrapping, and unwrapping to obtain a phase unwrapping graph under a rectangular coordinate system; generating a single deformation graph: converting the phase unwrapping graph under the rectangular coordinate system into a polar coordinate system to generate the single deformation graph; and generating a total deformation graph: generating a total deformation graph and a rate graph of each time period, and analyzing the region of interest. The landslide can be monitoredin real time for a long time, the two-dimensional deformation graph of the landslide area is obtained, and data support is provided for early warning and treatment of landslide geological disasters.

The invention relates to a novel retaining wall for inhibiting the development of a landslide and a construction method, and belongs to the field of landslide geological disaster prevention and control. A composite foundation is designed, the lower end surface of the composite foundation is in a stepped shape, and the composite foundation is paved under the water seepage retaining wall; a wall body of the water seepage retaining wall is hollow, and one side of the wall body is provided with a water seepage gap; anchoring is reinforced, anchors are connected with the water seepage retaining wall, wherein each automatic anchor is provided with an automatic installation system consisting of a PID controller, a frequency converter, an electric control valve and the like, and a threaded anchorpile pulling device can provide strong overturning resistance torque for the retaining wall; a rock-soil collision prevention device is provided with a two-stage buffer structure and is arranged on the top of the water seepage retaining wall; a high-load slide-resistant pile is provided with a load plate and a bottom block and is fixed on one side of the composite foundation; and a drainage systemis provided with a rainwater intercepting and discharging device and a water collecting pipeline so as to reduce the water content of a landslide body and slow down the development of the landslide body. The retaining wall has a plurality of functions of overturning prevention, subsidence prevention, rock-soil collision prevention, rainwater interception and drainage, landslide development inhibition and the like.

The invention discloses a gypsum mine collapse monitoring system and a building method. The gypsum mine collapse monitoring system comprises drill holes, monitoring sensors, demodulation equipment, amonitoring platform and a buzzer; a plurality of drill holes are independently distributed in each monitoring position of a goaf; the monitoring sensors are arranged in the drill holes; the demodulation equipment is arranged in a safe area; the demodulation equipment is connected with the monitoring sensors and upload monitoring data to monitoring software of the monitoring platform so as to sendout a pre-judgment alarm; the buzzer is arranged at the ground surface position of a monitoring point and is connected with the demodulation equipment; the monitoring sensors comprise a fiber bragg grating displacement meter, a fiber bragg grating osmometer, a geological disaster alarm and a geophone; the buzzer gives an on-site alarm according to a geological disaster alarm signal; the monitoringsensors are used for monitoring multiple parameters of the geology of the goaf, so that collected data are comprehensive, all-around monitoring, pre-judgment alarming and field alarming are achievedat the same time, and an operator can be helped to rapidly take timely response measures according to dangerous geological conditions.

The embodiment of the invention discloses a natural gas hydrate mining method. The method comprises the steps that free gas in a natural gas hydrate mineral deposit is mined in a pressure reduction mining mode till the pressure of the natural gas hydrate mineral deposit is reduced to the preset percentage above the equilibrium pressure corresponding to the temperature of the hydrate mineral deposit, and the value range of the preset percentage is 5% to 10%; the temperature of the hydrate mineral deposit is reduced and kept below the freezing point, and thus free water in the mineral deposit is frozen; after the pressure and the temperature of the mineral deposit are stable, natural gas hydrate is mined; after mining of the natural gas hydrate is finished, CO2 is injected into the mineral deposit; and when CO2 injection is stopped, the temperature of the mineral deposit is increased to the freezing point or above. By utilizing the natural gas hydrate mining method, energy needed by mining can be reduced, the natural gas hydrate is mined safely in an environment-friendly mode, the stratum stability can be enhanced, and geological disasters such as stratum collapse and seabed landslide which possibly occur in the conventional mining process are effectively avoided.

The invention provides a simulation experiment device and method for submarine landslide induced by natural gas hydrate decomposition, relates to the technical field of marine geological disasters and natural gas hydrate exploitation, and realizes dynamic observation of the submarine landslide process. The device comprises a model box body, a gas injection system, a landslide system, an observation system and a data acquisition and analysis system, the model box body provides a test platform and facilitates observation, the gas injection system simulates the process that natural gas hydrate is decomposed to release a large amount of methane gas through gas injection, and the landslide system is connected with the gas injection system. The landslide system comprises a permeation box, a clay layer and a simulated hydrate layer and is used for simulating a submarine landslide process, and the observation system records the simulated landslide process and monitors strain and stress changes in the landslide process; and the data acquisition and analysis system collects monitoring information of the pressure sensor and the high-speed camera. The device can be used for observing the dynamic process of hydrate-induced submarine landslide, and has the advantages of simplicity and convenience in operation, low cost and the like.

The invention relates to the field of karst region soil cave collapse geological disasters, in particular to a karst soil cave exploring and positioning method. The method comprises the following steps that firstly, a working area required to be subjected to collapse exploring is selected; a spraying route is delimited for the selected area, and foaming agents are evenly sprayed till the content of the foaming agents in the earth surface covering layer soil body reaches the designed concentration; then whether bubbles are continuously generated on the earth surface or not are observed after raining, bubble generation points are marked, namely possible development positions of the karst soil cave, and finally the bubble generation points and adjacent areas are detected in detail by adoptinga conventional drilling or geophysical prospecting method to determine detailed characteristics of the soil cave. According to the technical scheme, the karst soil cave exploring and positioning method can achieve large-area, low-cost, easy-to-operate and accurate detection of the specific development position of the underground karst soil cave, can remarkably reduce the detection target area ofthe karst soil cave, and effectively solves the bottleneck problem of restricting the position of the soil cave in karst collapse monitoring and prevention at present.

The invention discloses a test device for simulating three-dimensional bedrock and a test method thereof. The device comprises an outer frame, a hoisting mechanism and a molding mechanism, the hoisting mechanism is mounted at the top of the outer frame; the molding mechanism is mounted below the outer frame in a sliding manner; the hoisting mechanism is detachably connected with an embedded part on the molding mechanism; the test device can be used for preparing high-precision simulated three-dimensional bedrock, and provides powerful prerequisite and basic conditions for the application and research of the problems of the relationship between an overlying structure and bedrock, the influence of the form of bedrock on geological disasters and the like in the research fields of geotechnicalengineering, hydrogeology, landslide, debris flow and the like.

The invention relates to a power communication utility tunnel in an easy-to-slide area and a construction method thereof. Cable-stayed ground piles are arranged on the upper parts of the inner ends ofhorizontal ground piles, the included angle between the cable-stayed ground piles and the horizontal ground piles is 60 degrees, bottom reinforcing connecting rods for connecting the cable-stayed ground piles and the horizontal ground piles are arranged on the inner sides of the bottoms of the cable-stayed ground piles and the tops of the inner ends of the horizontal ground piles, the included angle between the bottom reinforcing connecting rods and the cable-stayed ground piles is 60 degrees, the included angle between the bottom reinforcing connecting rods and the horizontal ground piles is60 degrees, and a reinforcing risk-avoiding comprehensive assembly device is arranged in an outer frame of a utility tunnel body. A triangular structure is constructed in the easy-to-slide area, theouter frame of the utility tunnel body is clamped at the inner corner of the triangular structure, the easy-to-slide area is protected and supported by utilizing the stroke of the triangular structure, and the triangular structure and a landslide surface on the outer side form a triangular support surface in an integrated mode, so that the utility tunnel body in the area is not damaged by landslide geological disasters.

The invention discloses a Bagging landslide forecasting method which is specifically implemented according to the following steps: step 1, selecting landslide disaster-forming factors by adopting a kernel principal component analysis method; step 2, constructing a landslide geological disaster forecasting model based on Bagging by utilizing the data obtained in the step 1; and step 3, adopting anXGBoost optimization Bagging algorithm to complete landslide prediction. The problem of low accuracy in the prior art is solved.

The invention discloses a distributed medium and small watershed geological disaster and flood early warning method based on critical rainfall, an information acquisition terminal, an urban area datadivision part, an image information acquisition center and a receiving terminal are arranged internally, and the output terminal of the information acquisition terminal is connected with the input terminal of the urban area data division part. According to the distributed medium and small watershed geological disaster and flood early warning method based on the critical rainfall, the river water flow can be accurately located on a geographic area and a river branch, positioning accuracy during early warning is facilitated; meanwhile, when river flood information is collected, three terminal detection devices are utilized. A rain collector, a water level height sensor and a monitor are arranged; on one hand, the rain collector can accurately measure the rainfall within the timing duration,and on the other hand, the water level height sensor can clearly measure the water line in the river.

The invention relates to a reverse production method for a seafloor gas hydrate stable layer. The reverse production method comprises the following steps of S1, pressure-drop gas production: firstly, sucking out liquid in a production well, dropping the pressure at the bottom of the well, producing free gas under the hydrate stable layer, and decomposing the lower surface of the hydrate stable layer; S2, heat-injection decomposing: injecting hot water or steam into the upper part of a production layer, decomposing the gas hydrate stable layer from bottom to top, and producing from the production well after decomposing; S3, cementing of carbon dioxide: injecting the carbon dioxide into the lower part of the production layer, and gradually cementing at the bottom part of the production layer from bottom to top; S4, after the cementing is completed, repeating the steps S1, S2 and S3, cycling to produce, and stopping production until the natural gas hydrate stable layer is thinned to the proper thickness. The reverse production method has the advantage that the problems of easy leakage of natural gas, easy pollution to sea environment, and easy occurrence of geological disasters in the production process of seafloor natural gas hydrates are solved.

The invention discloses a strip mine distributed water resource storage and utilization system and an implementation method thereof. The implementation method comprises the following steps: S10, a contour map and a stratigraphic histogram of a mining area and surrounding terrain are obtained; S20, water storage area parameters of the distributed water resource storage and utilization system are planned, and a geomorphic contour line is remodeled; S30, a part of storage and utilization systems are built in the internal drainage operation period of the strip mine, so that resource utilization of part of mine gushing water and rainfall is achieved; and S40, construction of the distributed water resource storage and utilization system is completed during the pit closing period of the strip mine. According to the method, mine gushing water in the open-pit mine production period in the water-deficient area is effectively stored and converted into production water and greening water in time; after a pit is closed, rainwater is stored and called through the height difference between distributed water storage areas and the height difference between the water storage areas and a reclamation area. The volume of a water storage area is used for counteracting the volume of produced resources, so that the elevation of an area reconstructed by internal drainage operation is close to that of an original landform, and geological disasters such as landslide and debris flow are avoided.

The invention discloses a method for safe exploitation of natural gas hydrate, and its technical scheme includes the following steps: geological survey of pre-development block; deployment of well positions in pre-development block; optimization of well trajectory; interval drilling of the first batch of wells and descending After the end of production, the well is abandoned, and cement is injected into the bottom of the well to fill the cavity; the second batch of wells is drilled between the first batch of wells and the depressurization is carried out; the production ends. According to the geological characteristics of the submarine slope and the distribution characteristics of natural gas hydrate reservoirs, by optimizing the deployment of well locations, drilling production in batches and filling the mining cavities, the phenomenon of plastic zone penetration in the submarine slope can be effectively prevented, and blowouts, submarine landslides, methane leakage, etc. can be avoided. Engineering disasters, geological disasters and environmental problems, to ensure the stable exploitation of gas hydrate reservoirs under submarine slopes.

The present invention relates to the technical field of geological disaster model experiments, in particular, to a device and method for obtaining test data of landslide retaining structures. mechanism, the slide body material is used to simulate a slope; the support structure is used to support the slide body material; the slide bed material is used to simulate bedrock, and the slide bed material is arranged at the bottom of the slide body material One side of the sliding bed material, and the sliding bed material can move to the other side of the sliding body material; the bottom of the anti-sliding pile is fixedly arranged in the sliding bed material, and the top of the anti-sliding pile is arranged through the Inside the sliding body material; the data collection mechanism is used to collect the test data of the landslide retaining structure. The invention reduces the cost and construction difficulty by reversely extruding the sliding body material with the anti-sliding pile model, and ensures the accuracy of the data by processing the test data.

The invention discloses an engineering mud and slag interlayer backfill mine pit foundation structure and a method for rebuilding the foundation. Including the vacuum filter pipe network, sand cushion and mud slag structure unit laid in the abandoned mine pit; there is a layer of vacuum filter pipe network on the bottom of the abandoned mine pit, which consists of multiple parallel horizontal vacuum filter tubes and multiple parallel vertical vacuum filter tubes. The filter tubes are laid vertically and intersectingly; a sand cushion layer is laid on the vacuum filter pipe network, and multiple layers of mud and slag structural units are laid in sequence on the sand cushion layer. Cloth layer, consolidated mud layer, geotechnical composite drainage network, engineering muck layer. The invention utilizes the engineering mud and slag produced in the urban construction process to backfill the abandoned mine pit, which can effectively relieve the disposal pressure of the huge amount of engineering slag and engineering mud in the city, and solve the problems of geological disasters and ecological environment damage caused by irregular disposal and exposed abandoned mine pits , and can regenerate the foundation to realize the regeneration of land resources.