94 results about "Earthquake simulation" patented technology

The invention relates to the technical field of rock mass earthquake dynamic response, and discloses a layered rock mass earthquake dynamic response multi-scale monitoring system and method, and the system comprises a rock mass three-dimensional geological module, a simulation setting module and an earthquake simulation module. The method comprises the following steps: establishing a layered rock mass three-dimensional geologic model; the method comprises the following steps: identifying a dangerous rock mass structural surface, monitoring slope displacement, and installing sound emission monitoring equipment at a key position to form a three-dimensional monitoring network; a layered rock mass and a broken area in the layered rock mass three-dimensional geological model are divided into discrete element areas, and a continuous medium area is divided into finite difference areas; coupling the discrete element region and the finite difference region; inputting the seismic wave as a dynamic boundary condition into the finite difference region, transmitting a response to the discrete element region through a coupling interface, and simulating a rock stratum and rock mass dynamic fracture process; and the crack propagation particle size and the original stress propagation are transmitted to the cloud platform. The geometric morphology and the internal structure of the rock mass can be accurately reflected.

The invention discloses an L-shaped wind wave flow-earthquake simulation system and method suitable for a high gravity field, the simulation system comprises a model box, a wind generation system, an L-shaped wave generation system, a flow generation system and a vibration seabed model, and the model box is used for accommodating and installing each system and is arranged on a rotating arm of a centrifugal machine in an up-and-down swinging manner; the wind generation system is used for forming horizontal airflow circulation, the L-shaped wave generation system is used for generating waves, the flow generation system is used for generating flow, and the vibration seabed model is used for researching interaction between a maritime work structure and seabed soil under various sea conditions. The simulation system can reproduce sea wind, wave, ocean current and earthquake scenes in a high gravity field.

The invention discloses a transmission tower vulnerability analysis method and system based on seismic simulation, and belongs to the technical field of electric power facility disaster prevention, and the method comprises the steps: correcting bedrock seismic oscillation parameters based on equivalent shear wave velocity, and generating a high-precision earth surface PGA distribution diagram; automatically positioning a key node layer through eigenvalue decomposition, reducing the order of the three-dimensional model of the power transmission tower into a two-dimensional series multi-degree-of-freedom model, and outputting a layer mass vector, a condensation stiffness matrix and rod piece bending stiffness; performing time-history analysis by using the corrected PGA-driven reduced-order model to generate an earthquake damage probability; the multi-source remote sensing data and the PGA are fused, the landslide space probability is output through a deep learning model, and the impact strength and the landslide kinetic energy are calculated to judge the landslide damage probability; and based on the dual-threshold condition triggering probability union set, calculating a comprehensive damage probability, and generating a three-dimensional vulnerable curved surface. According to the method, the problems of high missing report rate and low calculation efficiency of single disaster assessment are solved, and minute-level accurate early warning of the composite disaster risk of the power transmission tower is realized.

The invention belongs to the technical field of earthquake simulation tests, and particularly relates to a fault dislocation testing device and method for a three-dimensional earthquake test, and the fault dislocation testing device is composed of two beveling models which are in the same form and are beveled on a cube along diagonal lines of an upper square surface and a lower square surface of the cube. The contact surface of the two beveled models, namely the opposite surface formed by beveling the two beveled models along the diagonal line, is a fault surface, and the fault models are arranged according to different test methods. The experimental device comprises the fault models, a strain observation system, an acoustic emission monitoring system, an active acoustic emission observation system and a laser total reflection fault monitoring system; according to the invention, a laboratory earthquake experiment can be realized, a laser total reflection fault observation system is researched and developed on the basis of a stress-strain observation device and an active and passive acoustic emission device, and synchronous monitoring of fault stress-strain, acoustic emission signals, displacement and fault surface contact conditions can be realized at the same time.

The invention relates to the technical field of co-seismic landslide risk evaluation, in particular to a near-fault single co-seismic landslide motion range mapping method and system. The method comprises the following steps: acquiring fracture structure data of a research area; positioning a main seismic fracture based on the fracture structure data, and performing fracture mechanism analysis to obtain seismic source parameter data; constructing a fault geometric structure and earth crust medium structure model containing a three-dimensional terrain based on the fracture structure data and the seismic source parameter data to obtain three-dimensional structure model data; and setting fault source parameters and stratum velocity medium parameters based on the source parameter data and the three-dimensional structure model data to obtain seismic simulation input parameters. According to the method, the whole process of near-fault co-seismic landslide from seismic triggering to accumulation is accurately reproduced through an integrated physical driving simulation frame, the three-dimensional motion range and the danger partition are evaluated in a high-precision mode, and a reliable basis is provided for risk evaluation and disaster prevention decision making.

This invention provides a root-based slope erosion simulation device, comprising: a slope simulation unit for establishing a slope simulation test environment with different slope gradients, including an adjustable slope, on which a test area with slope-protecting vegetation is formed; a rainfall erosion simulation unit for providing various rainfall conditions to the test area; an earthquake simulation unit for providing various earthquake conditions to the slope simulation unit; an erosion material collection unit for collecting erosion material discharged from the test area during the test and measuring its weight; and a data collection and analysis unit for analyzing the impact of different test conditions on slope erosion and root-based slope protection effects based on the collected response data and measured weight of the test area under different test conditions. These different test conditions include different rainfall, earthquake conditions, and their coupling. This invention can conduct erosion simulation tests on root-based slope protection with different slope gradients under different rainfall and earthquake coupling conditions, accurately evaluating the effectiveness of root-based slope protection.

The present application relates to the field of earthquake site rescue warning, and relates to a real-time early warning method for secondary collapse risk of RC frame semi-rubble structure under aftershock. The core content of the method includes four modules. Module 1: using the method of seismic simulation shaking table, the whole process of RC frame structure from perfect to semi-rubble to secondary collapse is realized by simulating main-aftershock action, and time history data of dynamic response of secondary collapse structure is obtained. Module 2: high-dimensional continuous horizontal moving time window method is used to process the time history data of dynamic response of structure and obtain the dynamic response characteristics of RC frame semi-rubble secondary collapse structure. Module 3: K-Means machine learning algorithm is used to cluster the secondary collapse risk type of RC frame semi-rubble structure. Module 4: Informer machine learning algorithm is used to realize real-time early warning of secondary collapse risk of RC frame semi-rubble structure. The present application can scientifically and accurately distinguish and real-time predict the secondary collapse risk of RC frame semi-rubble structure under aftershock.

The utility model relates to an interactive device for Qin bricks and Han tiles, which belongs to the technical field of Qin brick and Han tile display and comprises a solid wood platform, a solid wood stand column and a wood bracket are arranged on the solid wood platform, a straight purlin for displaying the Qin bricks and the Han tiles is arranged on the solid wood stand column and the wood bracket, and an earthquake simulation base is arranged at the bottom of the solid wood platform. According to the interaction device for the Qin brick and the Han tile, the earthquake simulation base is arranged, the feeding component is used for controlling the supporting frame to move left and right, so that the wood framework at the top of the solid wood platform and the Qin brick and the Han tile are driven to move left and right, and the lifting component is used for controlling the wood framework at the top of the solid wood platform and the Qin brick and the Han tile to move up and down; therefore, the vibration process of the wood framework and the laid Qin brick and Han tile in the earthquake is simulated, vibration is simulated through the up-down and left-right movement height, the earthquake simulation level can be adjusted through the control panel, the stability of the wood framework can be fully reflected, and therefore the interactivity of the Qin brick and Han tile on the wood framework is improved.

The application relates to the field of earthquake simulation and detection, and discloses a test model for simulating seismic soil evolution of a large-span bridge and a testing method, the test model comprising a vibration table, a large-span bridge model, a damping control device, a vibration mechanism and a cooperative control system, the large-span bridge model comprising a plurality of pier bases, the damping control device being fixedly connected between the pier bases and the vibration table; the vibration mechanism cooperatively drives the vibration table to vibrate in space; the cooperative control system comprises a processor, an acceleration sensor and a displacement sensor; the testing method comprises the steps of simulating an earthquake process by the vibration table, simulating soil evolution or different site geology by the damping control device, collecting acceleration and displacement data information of the damping control device in real time by the cooperative control system, and analyzing the structural response of the large-span bridge. The test model can simulate the seismic site effect and the bridge seismic response under non-uniform excitation, has high authenticity and accuracy, is widely applicable, and has low test cost.

The utility model discloses an operating table for simulating earthquake disasters, which comprises an earthquake simulation vibration table, a house model is arranged at the top of the earthquake simulation vibration table, a support column is fixedly mounted at the bottom of the earthquake simulation vibration table, the bottom of the support column is connected with a bottom support plate, the house model is composed of a plurality of floors, and the floors are connected with the house model. A bridging plate is fixedly mounted at the bottom of the floor, and the earthquake disaster simulation device relates to the technical field of earthquake disaster simulation, a house model is arranged on an earthquake simulation vibration table, and earthquake waves are simulated and emitted through a simulation earthquake signal generator in the earthquake simulation vibration table, so that the disaster condition of the house model under an earthquake can be simulated; a plurality of dampers are jointly hinged between the floors, so that the different floors have corresponding swing amplitudes and directions during earthquake simulation, and the disaster conditions of the floors with different heights can be simulated.

The utility model discloses a roadbed design model based on highway design, which is applied to the technical field of highway design auxiliary equipment, and is characterized in that an earthquake simulation mechanism comprises a placing plate, a driving motor, a rotating shaft and a belt, and a plurality of springs are fixedly connected between the bottom of the placing plate and the top of a bottom plate; the device has the technical effects that the placement plate moves upwards under the action of the spring in the process that the longer parts of the convex blocks are far away from the lower part, so that the state of a longitudinal seismic wave is simulated for the model body in the process that the placement plate moves up and down, and the rotating shaft on the back surface of the model body rotates; the model body is driven by the rotating shaft to rotate, then the two protruding blocks on the rotating shaft are driven to rotate, the model body is pushed back and forth in the rotating process of the protruding blocks on the two rotating shafts, and seismic transverse waves can be simulated, so that researchers can simulate the state of a roadbed under the seismic condition, and then relevant personnel can fully know a design system of the roadbed conveniently.

The present application relates to a kind of mine earthquake internal seismic source power similarity simulation test system and method based on metal wire electric explosion, pre-embedded metal wire electric explosion is used to form transient volume expansion seismic source in similar material model inside, it is realized by the conversion of the accurate release energy source from the external monotone extensive mechanical disturbance to model inside;Through the division of labour design of charging branch, main discharge branch, discharge branch and detection branch, make circuit organization relationship clear, protection chain is complete, it is convenient to stable implementation high voltage pulse discharge test;Through the current limiting inductance to the discharge current front and pulse width are adjusted, so that mine earthquake simulation is no longer only pay attention to total energy similarity, also consider time process similarity;The corresponding relationship between the energy of field mine earthquake event and the input electric energy of similar material model is established, the scientificity of test parameter setting is improved;Through cabinet type layered assembly, host computer software control and standardization experimental process organization, the repeatability, traceability and safety of device operation are improved.

This invention relates to the field of seismic imaging technology and discloses a method, apparatus, equipment, and medium for forward modeling of seismic acoustic waves in a viscoelastic-acoustic (VTI) medium. The method includes: obtaining a desired Q value; calculating the viscoelastic velocity of the seismic acoustic wave based on the desired Q value; fitting parameters of a generalized standard linear body model; constructing a wave equation for the seismic acoustic wave in the VTI medium based on the generalized standard linear body model; and solving the wave equation for the seismic acoustic wave in the VTI medium using the finite difference method and the viscoelastic velocity. This invention solves the problem that traditional seismic simulations cannot simultaneously consider seismic anisotropy and seismic attenuation, significantly improving the accuracy and applicability of seismic simulations, as well as the accuracy of seismic simulations in complex terrain, geology, and oil and gas reservoir areas. It provides a foundation for subsequent high-precision seismic velocity modeling and seismic migration imaging.

The invention provides a modular assembly type reaction wall capable of intelligently regulating and controlling electromagnetic adsorption, and belongs to the field of civil engineering test facilities, a reaction wall main body is formed by combining a plurality of standardized modules, multi-degree-of-freedom reconstruction between the standardized force bearing modules is realized through electromagnetic chucks, and a built-in load sensor feeds back a connection state in real time; and in cooperation with the matrix distribution design of the loading holes, a multi-form reaction wall structure can be quickly built according to test requirements. Each module unit comprises a concrete block, an embedded steel plate, an electromagnetic chuck, a loading hole and a load sensor. The device is characterized by comprising an electromagnetic adsorption interface with adjustable magnetic flux; a modular assembly error self-compensation mechanism is adopted; the invention discloses a distributed sensor network and an intelligent control system based on a PID algorithm. Compared with a traditional cast-in-place structure, the construction efficiency can be effectively improved, repeated disassembly and assembly of the modules are supported, the space adaptability is high, and the multi-scene test requirements of earthquake simulation, structure loading and the like are met.

A tailing pond simulation device provided by the present invention comprises a mounting bottom plate, an earthquake simulation assembly, a simulation model mounting rack and a water seepage simulation assembly, the earthquake simulation assembly is arranged on the mounting bottom plate, the earthquake simulation assembly comprises a horizontal vibration simulation assembly and a vertical vibration simulation assembly, the horizontal vibration simulation assembly is arranged on the upper surface of the mounting bottom plate, and the vertical vibration simulation assembly is arranged on the lower surface of the mounting bottom plate. The horizontal vibration simulation assembly comprises a vibration platform, a horizontal vibration generator used for driving the vibration platform to horizontally move left and right is arranged on the horizontal vibration simulation assembly, and the vertical vibration simulation assembly is fixedly installed at the top of the horizontal vibration simulation assembly; the vertical vibration simulation assembly comprises a plurality of vertical vibration generators and a flexible connection surface layer, the tailing pond simulation device carries out seismic wave position simulation through the vibration phase difference of the plurality of vertical vibration generators, and simulates the relative position of a fault section through the plurality of flexibly connected hard plates, thereby simulating the seismic nonuniformity.

The invention discloses an ARM (Advanced RISC Machines) architecture-oriented CGFDM (China General Microbiological Fused Deposition Modeling) seismic wave solver for hybrid precision and vectorization collaborative optimization and a simulation method, and aims to break through the bottleneck of memory bandwidth and calculation efficiency of ARM platform seismic simulation. According to the method, firstly, an elastic wave equation is reconstructed in a dimensionless mode, key physical quantities are made to adapt to the FP16 range, the mixed precision strategy of FP16 storage and FP32 calculation is adopted, and on the premise that precision is guaranteed, about 50% of memory consumption is reduced. And secondly, for ARM scalable vector expansion (SVE), the CGFDM differential template is mapped to a vector register, SIMD parallel computing is realized, and the throughput is remarkably improved. Finally, the FP16-SVE solver realizes data rearrangement and conversion between the FP16 and the FP32, the problems of alignment and efficiency in mixed precision operation are solved, and synchronous improvement of storage and calculation efficiency is realized. Tests show that the method has the advantages that while the precision is maintained, the memory is halved, nearly three times of speed-up ratio is obtained, and an efficient scheme is provided for large-scale earthquake simulation and real-time disaster assessment of an ARM platform.

The embodiment of the present application provides a simulation experimental device for the instability mechanism of slopes under the coupling action of earthquakes and rainfall, which relates to the technical field of earthquake simulation equipment. The simulation experimental device for the instability mechanism of slopes under the coupling action of earthquakes and rainfall includes: a model storage mechanism, a driving transmission mechanism, the transmission mechanism is located at the lower end of the model storage mechanism, and the transmission mechanism vibrates the model in the model storage mechanism, an adjustment mechanism, the adjustment mechanism is located at the lower end of the model storage mechanism, the adjustment mechanism is located in the middle of the transmission mechanism, and the transmission mechanism moves upward and drives the adjustment mechanism to rotate. The cooperation position and state of the cam and the vibration convex plate can be precisely changed, so as to realize the precise adjustment of the vibration amplitudes of the toe, the top and both sides of the slope of the experimental model, meet the requirements for simulating the vibration amplitude of slopes under different experimental conditions, and help to deeply study the influence of the vibration amplitude on the instability mechanism of slopes.

The invention discloses a steep dip inner stratified rock slope stability assessment method used under the earthquake action, and relates to the technical field of geological safety assessment, geological parameters of a target geological area are acquired, and corresponding slope body building blocks are established according to the acquired geological parameters of the target geological area; fitting the slope body building blocks to obtain a steep dip inner stratified rock model corresponding to the target geological area; arranging corresponding sensors and DIC speckles for the steep dip inner stratified rock model to obtain a corresponding steep dip inner stratified rock slope physical model; placing the steep dip inner stratified rock slope physical model on a vibration table, applying a horizontal seismic load, and obtaining seismic simulation state parameters of the steep dip inner stratified rock slope physical model under the horizontal seismic load; analyzing the stability of each slope body building block in the steep dip inner stratified rock slope physical model according to the obtained seismic simulation state parameters, and judging the slope stability of the target geological area according to the analysis result.

The present application relates to a kind of multi-scenario simulation micro pile reinforcement model test device. Including model box, it further includes the sliding baffle that can slide along left and right direction, the front and rear sides of bottom plate are symmetrically provided with two guide rails extending along left and right direction;Slope forming press plate includes horizontal press plate and forming inclined plate by hinged shaft mutually hinged, horizontal press plate, forming inclined plate and hinged shaft can be telescopic along left and right direction;The sliding crossbeam of loading device is slidably assembled on slide rail by the sliding portion of both ends to be freely slid along slide rail, servo jack is provided below sliding crossbeam to be used for the slope loading after forming;Rainfall simulation device includes water pump, water pipe, spray pipe and multiple spray heads arranged on spray pipe;Seismic simulation device includes upper and lower platforms and multiple springs connected between the two, and the longitudinal exciter and transverse exciter for simulating seismic waves are further provided on the upper platform, and the model box and loading device are fixed on the upper platform;Pouring tooling.

The present application relates to a kind of shale gas exploitation induced earthquake simulation test device for simulating the influence of building, belong to shale gas exploitation field.It includes: simulation container, multiple hydraulic machines, fault pad, simulated fault, rock-soil layer, simulated borehole pipe, simulated shale gas layer, surface soil and control mechanism;The hydraulic machine is arranged below the simulation container, the fault pad is arranged above the hydraulic machine, the simulated fault is arranged above the fault pad, the rock-soil layer and the simulated shale gas layer are arranged above the simulated fault, the simulated shale gas layer is arranged in the middle of the rock-soil layer, the surface soil is arranged above the rock-soil layer, the simulated borehole pipe passes through the lateral wall of the simulation container, and is connected with the simulated shale gas layer.The present application is beneficial to the physical model test of shale gas exploitation process, simulates the influence of fault sliding on the earthquake caused by shale gas exploitation and the influence of building on the earthquake induced by shale gas exploitation.

A system is provided.SOLUTION: Means for collecting, tagging, and classifying scenic images, means for training an image recognition model using the scenic images, means for generating a prototype of a virtual city using the trained image recognition model, and means for receiving a requirement of a user and reflecting the requirement in the prototype of the virtual city, A system comprising: means for generating a detailed 3D model; means for setting up an earthquake scenario and performing an earthquake simulation in a virtual city to provide escape routes and support points; means for generating a post-earthquake recovery support plan to calculate required resources and present a recovery plan; means for collecting and integrating real city information into a virtual city database; and means for updating real city planning and earthquake countermeasures based on the integrated data.SELECTED DRAWING: Figure 1

The invention relates to the technical field of anti-seismic testing, and discloses an anti-seismic testing device for building components, which comprises a shell, a servo motor is arranged on one side of the shell, a mounting shell is arranged in the shell, a plurality of mounting base blocks are arranged on the surface of the top of the mounting shell in an array, and an earthquake simulation mechanism is arranged in the mounting shell. Two transverse sloshing mechanisms are symmetrically arranged at the bottom of the earthquake simulation mechanism in a staggered mode, the earthquake simulation mechanism comprises a clamping cylinder installed at the output end of a servo motor, and a clamping rod is slidably connected into the clamping cylinder. The seismic wave simulation blocks are rotated and switched, so that different seismic waves are formed, a continuous and non-repeated dynamic loading mode is realized, compared with single waveform loading, the complexity and uncertainty of the seismic action can be simulated more truly, the structure can undergo multi-frequency-band and variable-amplitude continuous detection, and the detection accuracy is improved. Therefore, the accumulated damage process, the potential resonance effect and the hidden weak link in the dynamic response can be disclosed more effectively.

The invention discloses an earthquake simulation method for an energy storage container. The method comprises the following steps: acquiring an initial three-dimensional model of the energy storage container; constructing a corresponding multi-rigid body system; carrying out modal analysis on the multi-rigid-body system by adopting an SRSS method to obtain the sum of rigid modals so as to generate a corresponding time domain-multi-rigid-body system seismic response spectrum; and converting the time domain-multi-rigid-body system seismic response spectrum into a corresponding frequency domain-multi-rigid-body system seismic response spectrum, and solving an equation under the action of seismic acceleration based on the frequency domain-multi-rigid-body system seismic response spectrum to obtain an acceleration response curve of each rigid body. The invention further provides an energy storage container earthquake simulation system. According to the method provided by the invention, the response of the energy storage container under the earthquake action can be quickly and accurately simulated, so that a scientific basis is provided for design, installation and operation of the energy storage container.

The invention provides a simulation method, device and equipment for sliding impact type near-fault seismic oscillation and a storage medium. Relates to the technical field of seismic simulation. The method comprises the following steps: selecting a slip actual measurement seismic oscillation record; determining an actually measured earthquake impulse period and an average point number; decomposing the actually measured seismic oscillation record through a moving average filtering decomposition method; the data obtained by smoothing the original seismic oscillation record is the quasi-low-frequency component; obtaining a high-frequency component by calculating a difference value between the original seismic oscillation and the quasi-low-frequency component; fitting the pseudo-low-frequency component obtained by decomposition by using an equivalent velocity pulse model through a least square method to obtain a corresponding low-frequency component of the pseudo-low-frequency component; performing derivation on the speed time histories of the high-frequency component and the low-frequency component respectively; and carrying out time domain superposition on the high-frequency component acceleration time history and the low-frequency component pulse acceleration time history to generate final sliding impulse type near-fault seismic oscillation. According to the invention, the limitation that the obtained high-frequency component contains the sub-pulse component in the prior art is solved.

The invention relates to the technical field of geological earthquake simulation ruins, and discloses a ruin simulation method for earthquake rescue, and the method comprises the steps: firstly building a main structure and a scene simulation engine, then building an environment simulation device, transmitting the data collected in the environment simulation device to an intelligent sensing network, and transmitting the data to the intelligent sensing network; the intelligent sensing network transmits the real-time data of the personnel to the scene simulation engine, and finally transmits all the data to the data management platform. According to the ruin simulation method for earthquake rescue, simulation parameters are adjusted in real time through behaviors of rescue workers, risks and challenges facing by participants in training are close to a real disaster site, psychological adaptability and emergency response ability are improved, an AI system adjusts scene complexity or triggers events according to actions, decisions and speeds of each rescue worker, and the simulation accuracy is improved. The difficulty can be set individually for persons with different skill levels, and the training efficiency and effect are improved.

The invention relates to the technical field of simulated earthquake vibration tests, in particular to a high-precision tilting device for an earthquake simulation test bed and an adjusting method. The device comprises a bearing plate, a base plate, a transverse groove, a longitudinal groove, a lifting driving device and three industrial-grade laser range finders, wherein the transverse groove and the longitudinal groove are arranged in a # shape; the lifting driving device is used for adjusting the inclination angle and the azimuth angle of the bearing plate; each driving device is connected with a double-acting servo hydraulic cylinder through a spherical hinge, a laser range finder on the base plate measures the posture in real time based on the three-point plane determining principle, micron-order adjustment of the telescopic amount of a piston rod is achieved through a PLC control hydraulic system, and finally the control precision of the inclination angle and the azimuth angle of the bearing plate reaches 0.02 degree. Through closed-loop control and high-rigidity structural design, the problems that a traditional device is low in adjusting efficiency and insufficient in precision are solved, and the device is suitable for a high-precision earthquake simulation test.

The utility model discloses a backrest for earthquake simulation device, including installation device, supporting device, protection device. Installation device bottom is fixed on the platform of earthquake simulation device, and supporting device sets up in installation device side, and protection device sets up at the junction of installation device and supporting device, and protection device both ends pass through supporting device and set up in the outside of supporting device, and the inboard of supporting device is fixed with installation device through the mode of welding, and protection device sets up at the junction of installation device and supporting device through bolt. Through the utility model, can guarantee the safety of experience personnel when demonstrating simulation earthquake. Supporting device is provided with the backrest that can accommodate three people, and the backrest position is provided with a certain amount of sponge pad, can protect the safety of experience personnel.

This application relates to a three-dimensional experimental device and method for simulating the dynamic response of seismic slopes. The device includes a frame with a model mounting box containing a slope model. The bottom of the model is connected to front-back, left-right, and up-down movable components. A drive mechanism on the side wall of the frame causes the components to vibrate synchronously. The application also includes a corresponding three-dimensional experimental method, covering steps such as pre-experiment preparation and model preparation, adjustment of three-dimensional vibration amplitude parameters, no-load debugging of the three-dimensional experimental device, three-dimensional seismic dynamic response simulation test, shutdown and reset, and data processing. This application achieves a realistic simulation of the multi-dimensional dynamic response process of a slope under seismic loads. The experimental results are closer to actual engineering conditions, significantly improving the reliability and accuracy of the experimental data. The three-dimensional vibration parameters can be independently adjusted to adapt to different simulation needs, greatly improving the efficiency and accuracy of indoor slope seismic simulation tests.

The application discloses a pore filling type natural gas hydrate reservoir artificial core and a preparation method and application thereof. The raw material of the artificial core of the application comprises quartz sand and kaolin, a cementing agent and water, and optionally a single crystal material. The pore filling type natural gas hydrate reservoir artificial core of the application has certain similarity with an actual pore filling type hydrate reservoir, and can be used for hydrate reservoir petrophysical testing and seismic simulation experiments at normal temperature and pressure.

The invention relates to an earthquake simulation detection device, and relates to the technical field of vibration detection, the earthquake simulation detection device comprises a vibration table and a to-be-detected piece, the vibration table comprises a base, a sliding piece, a first elastic piece and a driving assembly, the sliding piece is movably arranged on the base, and the first elastic piece is arranged on the base; the first elastic piece is connected between the sliding piece and the base, and the first elastic piece is used for enabling the sliding piece to generate free attenuation vibration after initial displacement is applied to the sliding piece; the driving assembly is used for applying initial displacement to the sliding part, the driving assembly comprises a moving part and an abutting part, and the moving part is used for moving in the preset horizontal direction; the abutting piece is arranged on the moving piece. The earthquake simulation detection device is used for solving the problem that an existing earthquake simulation detection device is difficult to simulate real earthquake conditions.