54 results about "Active fault" patented technology

The invention discloses a risk zoning method for active fault engineering influence, which relates to the technical field of engineering construction evaluation, and comprises the following steps: I, fusing multi-source data of a detection fault, constructing a three-dimensional geometric model of the fault, and analyzing and correcting a fault distribution rule by utilizing a GIS (Geographic Information System) space; iI, combining fault sliding rate, paleoearthquake recurrence period and deep engineering crustal stress inversion, and evaluating activity characteristics of the hidden fracture in the engineering service period. Through multi-source data fusion, three-dimensional model construction and GIS correction, multi-factor overlay analysis and a dynamic correction mechanism, multivariate characteristics of the active fault and complex geological conditions of an engineering site are comprehensively considered, the problem of limitation of a zoning result is solved, the accuracy of risk assessment is improved, limitation of a single index is broken through, and the risk assessment efficiency is improved. Closed-loop management of data acquisition-risk assessment-engineering response is realized, and scientific and reliable technical support is provided for safe site selection, optimization design and operation and maintenance of major infrastructures.

The invention discloses a multi-wave chromatography and reflection combined detection method and device for a thin-covering-layer urban active fault and a medium. The method comprises the steps that longitudinal wave seismic data and transverse wave seismic data are collected; recording vertical component data based on the longitudinal wave seismic data for first arrival travel time pickup and tomography inversion to obtain a longitudinal wave velocity structure model Vp; extracting Rayleigh surface wave frequency dispersion through the vertical component data and carrying out multichannel surface wave analysis inversion to obtain a transverse wave velocity structure model Vs; calculating a longitudinal and transverse wave velocity ratio parameter structure model Vp / Vs, and calculating to obtain a Poisson's ratio parameter structure model v; obtaining a longitudinal wave (P wave) reflection profile and a transverse wave (S wave) reflection profile; identifying and summarizing into an interpretation fracture set Fc, and recording key elements; and by taking the interpretation fracture set Fc as a structural skeleton, completing unified registration and superposition display on Vp, Vs, Vp / Vs and v, a longitudinal wave reflection profile and a transverse wave reflection profile, and outputting a shallow underground structure comprehensive interpretation map of the thin covering layer region.

The present application relates to the technical field of shale oil and gas field development, and is a test system for simulating fault activation and induced earthquake under the action of horizontal well hydraulic fracturing, which comprises a horizontal well geological model, a distributed optical fiber monitoring system, a perforating system, a fracturing system, a formation temperature simulation system and a stress applying system. The present application has a reasonable and compact structure and is convenient to use. It can realize the application of true triaxial formation pressure, simulate the real formation temperature of the formation where the horizontal well is located, and continuously and real-timely monitor the multi-physical field of the fault-containing geological reservoir under the conditions of formation pressure, temperature, the whole process of horizontal well hydraulic fracturing and multi-step conditions. Therefore, the mechanism of hydraulic fracturing activating faults, the feature difference of multi-stage fracturing fracture network, the deformation of casing and the risk of induced earthquake can be quantitatively characterized and regularly analyzed, so as to study the formation and expansion of rock mass fracturing fracture network, the activation of faults and the deformation and damage process of wellbore casing during the whole process of fracturing at different stages of horizontal well.

The invention discloses a three-dimensional elastic block-fault motion deformation coupling model construction method and system. Comprising the following steps: acquiring geodetic survey data of earth crust movement between earthquakes and an active fault distribution map, and dividing different active blocks; the movable blocks are associated with geodetic measurement data through spatial position attributes, and motion features of different blocks are distinguished; adjacent boundaries are extracted to serve as modeling boundary faults, and discretization processing is carried out; constructing a three-dimensional elastic block-fault motion deformation coupling model including block rotation, internal strain, fault normal velocity discontinuity counteracting, inclined fault positive slippage and negative dislocation response; inverting parameters of the three-dimensional elastic block-fault motion deformation coupling model by adopting a constrained least square method; and according to the coupling coefficient, identifying the potential pregnancy and earthquake concave-convex body on the fault. According to the method, a more complete inter-earthquake three-dimensional elastic model is established, and support is provided for accurate research of active fault coupling characteristics, recognition of gestational earthquake concave-convex bodies and judgment of major earthquake dangerous areas.

The application discloses a kind of active fault borehole stratum comparison methods combined with high-resolution logging data, it is related to stratum comparison technical field, comprising: first respectively obtaining test fault region and test bottom layer region;Real-time data acquisition is carried out based on electrical imaging logging, and differential analysis model is established;The differential analysis model is optimized, and the ground fault comparison model is obtained;Active fault borehole stratum comparison method is obtained based on the data in ground fault comparison model;The application is used to solve the problem of low precision and efficiency in the existing active fault borehole stratum comparison method.

The invention discloses a physical simulation method and device for seismic response certainty of an urban underground rail transit network, and the method comprises the steps: constructing a mixed seismic source model based on the active fault parameters and kinematic parameters of a target region, the seismic source model integrates a low-wavenumber deterministic slip component and a high-wavenumber random slip component on a fault fracture surface to generate a broadband seismic wave field source reflecting the physical process of a seismic source; the constructed seismic source model is used as input, a regional crustal velocity structure model is combined, propagation of seismic waves in a layered geological medium is simulated through a frequency-wavenumber domain method, and a seismic oscillation space-time field is obtained through calculation; and establishing a finite element model of the urban underground rail transit network, applying the seismic oscillation time-space field as non-consistent seismic oscillation input to the finite element model, and solving through dynamic time-history analysis to obtain the dynamic response of the whole underground rail transit network in the earthquake process. According to the invention, a complete physical chain from seismic source fracture to structural response can be reproduced.

The invention discloses a real-time fracture characteristic parameter estimation method based on active fault data, and belongs to the technical field of earthquake early warning. The method comprises the steps of receiving and processing strong vibration data in real time; carrying out identification and binarization processing on a fracture near-field area of the observation seismic oscillation field; constructing a general fault fracture template library; dynamically generating a specific fault fracture template library in real time; virtual stations are introduced into a station network sparse area and an edge area, and an observation blind area is complemented through weighted fusion of an actual observation value and a GMPE predicted value; performing correlation matching on the real-time strong vibration observation data and a fault fracture template, and searching an optimal template; and outputting the current fault fracture characteristic parameters based on the optimal matching template. According to the method, the existing active fault database is adopted to dynamically generate the fracture template to process the known fault fracture caused by the active fault, and the universal template is utilized to process the unknown and hidden fault fractures, so that the accuracy of real-time estimation of the seismic motion field in the great earthquake fracture process is remarkably improved.

The application discloses a kind of based on spatial intelligence's active fault three-dimensional model automatic construction method, belong to geological exploration and earthquake engineering technical field;Method includes: collection data, analysis and extract minimum complete subdirectory;Through adaptive threshold hierarchical clustering combined with improved RANSAC algorithm, the exclusive small earthquake cluster of each fault is automatically identified;Based on local weighted regression, three-dimensional automatic slice is made to small earthquake cluster, and each profile fault interpretation line is fitted by moving least square method;Finally, active fault three-dimensional fine model is constructed;Test model rationality and output model file;The application realizes the automation, quantification of fault modeling whole process, can be fused multi-source data and realize multi-element constraint modeling, adapt complex fault zone modeling, and the fine three-dimensional model constructed can provide key data support for fault present-day deformation inversion, three-dimensional potential source research, earthquake geological disaster assessment, with higher engineering application value.

The application discloses a tunnel co-seismic stick-slip faulting test device and method, which comprises a profile steel outer frame, a model box arranged in the profile steel outer frame, an elastic energy storage device and a trigger-energy release device connecting the upper part of the model box and the profile steel outer frame, a model box base supporting the model box, a vibration table connected with the profile steel outer frame and the bottom of the model box base, and an actuator arranged at the bottom of the model box and supported by the model box base. The model box comprises an upper disc box and a lower disc box, and the upper disc box and the lower disc box are arranged in left-right adhesion, and the adhesion surface is a faulting surface. The elastic energy storage device, the trigger-energy release device and the actuator are arranged on the same side of the faulting surface. The application can simulate the tunnel co-seismic stick-slip faulting test considering the impact effect and a large number of stick-slip rates, restore the whole process of the tunnel earthquake and the stick-slip faulting in the earthquake, and thus reveal the earthquake-stick-slip faulting response damage mechanism, so as to provide support for the anti-fault and shock resistance of the tunnel crossing the active fault.

The present application belongs to geological exploration technical field, disclose a kind of active fault positioning survey device, the rock in the cutting line needs to be removed in existing survey device, but the prior art uses manual mode, need to be chiseled in different positions, and in use process, it is inevitable to produce flying splinter, there is inconvenience in use, the technical scheme of the present application example, including protection box, the bottom surface opening of protection box, the two sides of protection box are fixedly installed with fixed device, four L-shaped inserts are provided in protection box, adjusting device for moving insert is provided in protection box, breaking device is provided in protection box, moving device for moving breaking device is provided in protection box, the protection box of the present application is provided, can avoid splinter in the process of rock breaking, secondly, through insert and fixed device, the positioning and fixing of protection box can be carried out, finally breaking device can be broken by moving device.

The application discloses a kind of near-field active fault influence evaluation method to tunnel surrounding rock, belong to geological technical method field, including the following steps: collecting active fault area data;Determine the region needing to adjust and draw using multi-source satellite remote sensing;Using unmanned aerial vehicle oblique photography forms the geological map of adjustment and drawing;Physical field map is prepared using aerial object;Determine engineering hydrology condition;Determine the time history record of ground motion of earthquake event;Build the intersection model of tunnel and the active fault area, using non-continuous deformation method simulation analysis tunnel surrounding rock state, to evaluate the surrounding rock state.The application provides a kind of near-field active fault influence evaluation method to tunnel surrounding rock, can adapt to the accurate monitoring of large range active fault area, is less influenced by topography, field operation danger coefficient is low, and can possibly reduce artificial exploration, significantly increase work efficiency, realize the accurate evaluation of the influence of active fault to tunnel surrounding rock stability.

The application provides a tunnel anti-faulting lining joint crossing a live fault and a construction method, and the lining joint comprises: a primary lining layer; an elastic pad plate, which is located at a live fault of a tunnel and is correspondingly arranged on the inner side of the primary lining layer, the elastic pad plate comprises an inner pad plate and an outer pad plate, and an elastic piece is arranged between the inner pad plate and the outer pad plate; and a secondary lining layer, which extends from both ends of the live fault of the tunnel to the middle along the inner wall of the tunnel, is spaced and distributed in the middle part of the live fault of the tunnel to form an installation station, and a flexible lining block is arranged at the installation station. The flexible lining block is arranged on the live end face of the tunnel to form a flexible support, so that the internal force of the tunnel when a large distance fault occurs is reduced, the lining structure loss is reduced, automatic resetting can be realized under a small fault condition, the damage to the lining support is reduced under a medium fault condition, and post-earthquake repair can be carried out under a large fault condition. Specifically, the prefabricated joint can be cut off after the earthquake, and a new joint is installed to realize post-earthquake repair.

The invention provides an active fracture outcrop three-dimensional modeling system, and relates to the field of field geological work. The active fracture outcrop three-dimensional modeling system comprises a smart phone and an intelligent marking nail, and the smart phone comprises a sensor module, a data processing module, an interaction module, an RTK high-precision positioning module and a multispectral camera module; the smart phone has the functions that the RTK high-precision positioning module can realize high-precision positioning after being connected through Bluetooth; a multispectral camera module can better restore the trueness of the image; the intelligent marking nails are used for marking faults and various marker layers; the intelligent marking nail and the intelligent mobile phone are used for identifying the marking nail and reconstructing a three-dimensional geologic model. The transportation problem in a field hard environment can be solved through light and easy carrying, and the device is suitable for a field operation environment with a small number of personnel; available data models can be quickly generated on site, and timely correction is facilitated; meanwhile, cost is relatively low, and popularization is convenient.

This invention provides a method, system, and medium for predicting earthquake source locations using TLF-GV signals, belonging to the field of earthquake prediction technology. The method includes: constructing a U-Net++ model, where multiple encoding blocks are used to sequentially generate feature maps of different spatial scales based on the gradient tensors extracted from TLF-GV; multiple decoding blocks are used to decode and output earthquake source probability heatmaps based on the feature maps at different spatial scales; obtaining active fault distribution maps, and constructing a geological prior penalty term based on the distance from each grid cell in the earthquake source probability heatmap to the nearest active fault, and constructing a loss function by combining the cross-entropy loss between the probability heatmap and the actual source mask; constructing a training set, using the concatenated features of the gradient tensors extracted from the gravity gradient grid and the fault binary mask as input to train and obtain the prediction model. This method utilizes the spatial grid features of the TLF-GV gravity gradient, combined with the small-scale feature capture capability of U-Net++, to effectively improve the accuracy of earthquake source location prediction.

The application discloses a kind of based on spatial data mining and geological constraint seismic activity fault model construction method, system, equipment and medium.The method is first arranged and analyzed to seismic data, extracts minimum complete subdirectory;Using improved mean shift algorithm for spatial clustering, identify each active fault corresponding small earthquake cluster;Subsequently, each fault cluster is three-dimensional slice, and least square method fitting is generated fault interpretation line;With interpretation line as foundation, initial seismic activity fault three-dimensional model is constructed, and is optimized by multi-source geological constraint, and active fault three-dimensional fine model is obtained;Finally, the model is integrated with digital earth spatial registration.This application can realize the whole process automation and quantization from seismic data analysis to active fault three-dimensional fine model construction and application, improve the objectivity, efficiency, precision and reliability of model construction, provide important technical support for seismic disaster risk assessment, active fault detection.

The application discloses a method and system for evaluating active fault stability based on ground stress data, and relates to the technical field of geological engineering, comprising the following steps: collecting multi-source heterogeneous stress data and auxiliary data and preprocessing the same to obtain preprocessed multi-source heterogeneous stress data and auxiliary data; performing space-time gridding interpolation processing on the preprocessed multi-source heterogeneous stress data and auxiliary data to obtain initial stress field data of a target active fault region; performing optimization reconstruction of the initial stress field data under the constraint of physical laws to output a high-confidence reconstructed stress field and a stress data abnormal intensity distribution map; constructing an active fault dynamics model based on geological and geophysical data of the target active fault region; and based on the stress data abnormal intensity distribution map. The application solves the prediction deviation problem caused by the physical incompatibility of the initial stress field and the solidification management of the model parameters in the traditional method.

The present invention discloses a vibration table array test device for simulating complex dislocation-vibration coupling, comprising a main frame and a vibration table arranged at the lower part of the main frame, the vibration table comprising a vibration table bracket and a vibration table frame, a movable box and a fixed box arranged in the main frame, the movable box and the fixed box having open top surfaces, the opposite ends of the movable box and the fixed box being open ends, and a model box shear joint being arranged between the open end of the movable box and the open end of the fixed box. The present invention also discloses a vibration table array test method for simulating complex dislocation-vibration coupling. The present invention satisfies the requirements for simulating dislocation and seismic coupling, and provides a reference approach for disaster prevention and mitigation of tunnels across active faults in high-intensity earthquake zones.

The invention relates to the technical field of earthquake monitoring and early warning, in particular to an active fault earthquake risk dynamic assessment early warning method and system, and the method comprises the steps: constructing and optimizing an active fault earthquake detection system according to the historical information of an active fault monitoring region; establishing a three-dimensional equidistant grid model of the active fault, and screening information acquisition points in the active fault seismic detection system according to the acquisition point error analysis model to determine a target monitoring point of the system; performing information monitoring on the active fault through the detection system and the target monitoring point to obtain active fault earthquake monitoring data; and predicting the relative displacement condition of the active fault based on the monitoring data and the three-dimensional equidistant grid model, and realizing the evaluation and early warning of the active fault earthquake by combining the relative displacement condition and the active fault earthquake monitoring data. The active fault can be monitored in real time, the motion condition of the active fault can be analyzed, evaluation and early warning of active fault earthquakes are achieved, and the occurrence possibility and the influence range of the earthquakes are accurately predicted.

This invention relates to the field of engineering earthquake and disaster prevention engineering technology, and particularly to a method and system for predicting the probability of fault deformation in engineering fault resistance. The method includes acquiring basic data of the target active fault, including the fault's geometric characteristics, kinematic characteristics, upper magnitude limit, recurrence period, elapsed time, focal depth, and deformation width; inputting the basic data as input parameters into a computational model; calculating the fault length based on the fault's geometric characteristics; and constructing a two-dimensional computational grid for along and across the fault. This invention provides a novel probabilistic prediction method for assessing the permanent displacement of the shallow crust caused by fault displacement during large earthquakes, as well as the intense deformation of the shallow crust near the fault. It can provide sub-meter level data on fault-alternating dislocation and cross-fault deformation at important engineering sites under a certain exceedance probability.

The invention relates to the technical field of tunnel faults, in particular to a supporting device for targeted control of active fault fracture. A fault fracture zone exists in the rock mass; the innermost side of the rock mass is provided with a tunnel internal space; the first-stage targeted support is connected to the fault fracture zone and comprises a plurality of guide pipes connected to the rock mass and strong grouting spaces formed among the guide pipes, the guide pipes are arranged and installed in a stepped structure, and fan-like arc-shaped guide surfaces are formed at the ends of the guide pipes through the strong grouting spaces; through a deformation channel formed by the arc-shaped guide surfaces formed on the two sides of the fault fracture zone, a target control fault potential fracture path is spread to a preset safety area along the arc lines of the sector-like arc-shaped guide surfaces to complete directional induction, a multi-stage target control support type is designed, multi-stage consumption and directional induction of fault fracture energy are achieved, and the fault fracture energy utilization rate is improved. And step-by-step energy consumption and targeted control of fault fracture path propagation from the stratum end to the tunnel end are realized.

The invention belongs to the technical field of tunnel construction, and particularly relates to a double-arch anti-dislocation system for a tunnel to pass through an active fault. In the double-arch anti-dislocation system for the tunnel to pass through the active fault, a tunnel assembly is limited by a transverse constraint hinge, cannot move transversely in an over-excavation space and only can move up and down in a vertical plane of the over-excavation space, and a double-arch structure at the bottom of the tunnel assembly comprises a semicircular arch frame and a plurality of arc arch frames connected in sequence; the tunnel assembly can be effectively supported through cooperation of the semicircular arch frames and the arc arch frames, a certain buffering effect is achieved, so that part of displacement generated when surrounding rocks on the two sides of the movable fault move relatively is absorbed and dissipated, and the displacement actually borne by the tunnel assembly is obviously lower than the actual displacement of the surrounding rocks on the two sides of the movable fault; therefore, the influence of the displacement of the surrounding rocks on the two sides of the active fault on the tunnel assembly is greatly reduced, and the stability and safety of the tunnel assembly are improved.

The invention belongs to the technical field of geological exploration, discloses an active fault positioning exploration device, and aims to solve the problems that an existing exploration device needs to take down rocks in a cutting line, however, in the prior art, a manual mode is adopted, different positions need to be chiseled, in the using process, broken stone splashing is inevitably generated, use is inconvenient, and potential safety hazards exist. According to the technical scheme, the device comprises a protection box, an opening is formed in the bottom face of the protection box, fixing devices are fixedly installed on the two sides of the protection box correspondingly, four L-shaped inserting plates are arranged in the protection box, an adjusting device for driving the inserting plates to move is arranged in the protection box, and a crushing device is arranged in the protection box; according to the rock breaking device, the protection box is arranged, chippings in the rock breaking process can be prevented from splashing, secondly, the protection box can be positioned and fixed through an insertion plate and a fixing device, and finally, the breaking device can be driven to conduct breaking treatment through the moving device.

The invention relates to the technical field of geological sampling, and discloses an active fault detection sampling device for geological disaster prevention and control, which comprises a support base, the lifting mechanism is arranged on the supporting base; the turnover mechanism is arranged at the lifting end of the lifting mechanism; the first mounting plate is arranged at the rotating end of the turnover mechanism and is fixedly provided with a first motor, an output shaft of the first motor is fixedly connected with a plurality of elastic mechanisms in the circumferential direction, the elastic mechanisms are detachably connected with a sampling barrel and a sealing cover, the sampling barrel is detachably connected with the sealing cover, and the side wall of the sampling barrel is rotatably connected with a magnetic attraction body; the second mounting plate is fixedly connected to the first mounting plate and fixedly connected with a first electric push rod, the output end of the first electric push rod is fixedly connected with an electromagnetic base, and the electromagnetic base is used for being attracted to the magnetic attraction body. According to the invention, efficient layered sampling can be realized, rapid packaging of the sampling barrel is realized, and a soil sample in the sampling barrel is protected from light, so that the accuracy of chronology data analysis and test of a sample sampled by an active fault is improved.

The invention provides a TLF-GV signal correlation seismic source position prediction method and system and a medium, and belongs to the technical field of seismic forecasting, and the method comprises the steps: constructing a U-Net + + model, and enabling a plurality of coding blocks to be used for generating feature maps of different spatial scales according to gradient tensors extracted by TLF-GV in sequence; the plurality of decoding blocks are used for decoding and outputting a seismic source probability thermodynamic diagram according to the feature maps of different spatial scales; obtaining an active fault distribution diagram, constructing a geological priori penalty term according to the distance from each grid unit in the seismic source probability thermodynamic diagram to the nearest active fault, and constructing a loss function in combination with cross entropy loss between the probability thermodynamic diagram and a real source mask; and constructing a training set, taking gradient tensor extracted by the gravity gradient grid and fault binary mask splicing features as input, and training to obtain a prediction model. According to the method, the spatial grid features of the TLF-GV gravity gradient are utilized, and the small-scale feature capture capability of U-Net + + is combined, so that the accuracy of seismic source position prediction is effectively improved.

The invention discloses an excavation supporting method for a nearly parallel active fault tunnel, belongs to the technical field of tunnel construction, and can solve the problem that it is difficult to effectively protect a hidden fault in the prior art. The method comprises the steps that S1, first prediction distribution of the hidden fault in a crossing area is determined according to geological data of the crossing area of a target tunnel; s2, determining a predicted distribution area of the hidden fault in the crossing area according to the first predicted distribution, and correcting the first predicted distribution according to exploration data of the predicted distribution area to obtain current predicted distribution; s3, the distance between each to-be-constructed section of the target tunnel and the hidden fault is determined according to the current predicted distribution, and the to-be-constructed sections with the distances smaller than a preset threshold value are determined as high-risk construction sections; and S4, determining support measures of the high-risk construction section according to the current predicted distribution, performing excavation construction on the high-risk construction section according to the support measures, and trimming a support structure of the high-risk construction section according to the construction effect. The method is used for tunnel construction.

The invention discloses a hidden active fault geometric parameter discrimination method based on multi-track InSAR and stress field constraint, and belongs to the technical field of remote sensing. The method comprises the following steps of: extracting a spatial connecting line with a maximum deformation gradient value as a fault agent trace by acquiring a rising and falling InSAR co-seismic deformation diagram of a target area; constructing a mutual exclusion tendency hypothesis based on the trace, and screening a reasonable tendency by predicting and comparing multi-track deformation symbol distribution; and meanwhile, in combination with a local main pressure stress axis P orientation of field geological inversion, whether the maximum uplift area is located on a P-axis pointing side is judged so as to constrain the sliding type. According to the method, a fault model does not need to be preset, high-confidence-coefficient judgment of the tendency and the mechanism is achieved through the physical self-consistency of the multi-view InSAR and the actually-measured stress field, the problem of geometric multiplicity of solutions of the fault under the condition of no surface fracture is effectively solved, seismic structure interpretation reliability is remarkably improved, and key parameter support is provided for seismic risk assessment.

The invention discloses an anti-seismic toughness evaluation method and device for a tunnel crossing active fracture, and belongs to the technical field of tunnel anti-seismic toughness evaluation.The method comprises the steps that S1, fault activity parameters are determined through geological investigation, and a strong earthquake-dislocation coupling load index is constructed; s2, the tunnel is divided into a core section, a transition section and a conventional section, a finite element model is established, and engineering demand parameters of all the sections are obtained through incremental dynamic analysis; s3, establishing a staged vulnerability curve based on a probabilistic earthquake demand model; s4, on the basis of the vulnerability curve, calculating the function loss ratio and repair time under different damage states, and meanwhile, quantifying the anti-seismic toughness index of the whole process from post-earthquake damage to recovery to design function of the tunnel by adopting a function recovery function; s5, comparing the toughness index change rates under different anti-seismic measures, and optimizing the anti-seismic design; according to the method and the device for evaluating the seismic toughness of the tunnel crossing the active fracture, accurate evaluation of the seismic toughness of the tunnel crossing the active fracture is realized.

The application provides a plain area hidden active fault normal fault creep induced surface deformation prediction method, device, equipment and storage medium, relates to the hidden fault activity technical field. The method comprises the following steps: based on the three-dimensional simplified geological model of the hidden normal fault and its adjacent area; taking the fault creep rate as the displacement boundary condition, simulating the surface vertical deformation induced by the hidden normal fault normal fault creep, obtaining the surface vertical deformation characteristics and dividing the surface deformation zone from the hidden normal fault; according to the action law of fault dip angle, creep time and creep rate on the spatial distribution of surface vertical deformation, fitting and constructing the prediction model of normal fault creep induced surface vertical deformation. The application proposes a multi-parameter prediction model covering fault dip angle, creep rate and creep time, and realizes disaster prediction caused by creep activity of hidden fault in plain area.

The invention, which relates to the monitoring and early warning field, discloses a monitoring and early warning system for deformation of surrounding rock of a highway tunnel passing through an active fault, comprising a monitoring management module, a data acquisition module, an edge analysis module, an overall analysis module and an early warning analysis module. The monitoring management module is used for setting an intelligent sensor network according to highway tunnel information and geological basic information; the data acquisition module acquires corresponding sensing monitoring data according to the intelligent sensor network; the edge analysis module is used for acquiring corresponding edge analysis data; the overall analysis module is used for acquiring corresponding overall analysis data; the early warning analysis module is used for performing comprehensive early warning analysis according to the edge analysis data and the overall analysis data in the intelligent sensor network, and generating monitoring early warning information according to a comprehensive early warning analysis result; according to the method, the accuracy in the deformation monitoring and early warning process of the road tunnel surrounding rock passing through the active fault is improved to a certain extent.