82 results about "Seismic safety" patented technology

The invention belongs to the technical field of underground engineering and computer-aided engineering analysis, and particularly relates to an anti-seismic safety collaborative analysis method for multi-modal data of proximity tunnel engineering. By integrating engineering geology, structural design, construction monitoring and multi-level seismic oscillation data, a three-dimensional numerical model fusing geology and structural information is constructed. Firstly, refined simulation of the whole construction process and the operation static load is carried out, and a reference mechanical state is obtained; carrying out multi-task condition earthquake dynamic time history analysis on the basis, dynamically capturing dynamic response of surrounding rock and a structure, carrying out collaborative interpretation on static and dynamic analysis results, emphatically analyzing spatio-temporal evolution and connectivity risks of a tunnel anchor and an adjacent highway tunnel surrounding rock plastic zone, and extracting a plurality of quantitative collaborative indexes; and an interactive analysis report integrating a three-dimensional visual scene, a multi-dimensional comparison chart and a rule base-based safety interpretation conclusion is automatically generated, and systematic decision support is provided for seismic design, construction control and safety evaluation of proximity projects.

The invention provides a method for analyzing anti-seismic performance of a steel reinforced concrete frame structure in a construction process, which comprises the following steps: S1, establishing a time-varying calculation model of the steel reinforced concrete frame structure in the construction process, the time-varying calculation model being used for simulating structural incompleteness and boundary condition change in a construction stage; s2, analyzing the anti-seismic performance of the steel reinforced concrete frame structure in the construction process by adopting a time-history analysis method, wherein the time-history analysis is based on a seismic wave acceleration time-history curve; s3, according to the time history analysis result, determining an earthquake response change rule of the steel reinforced concrete frame structure in the construction process; and S4, according to the earthquake response change rule, a measure for improving the anti-seismic safety of the steel reinforced concrete frame structure in the construction process is determined.

The invention relates to the technical field of railway earthquake safety, in particular to a rail-bridge system earthquake resistance evaluation method, a medium and equipment. The method comprises the following steps: establishing a finite element model of a track-bridge system; carrying out nonlinear time-history analysis on the track-bridge system under different working conditions; analyzing control factors of earthquake response of the track-bridge system; establishing a mapping relation between the seismic response of the track structure and the seismic response of the main beam; calculating the earthquake response of the main beam, and evaluating the earthquake displacement response of the track structure; and the anti-seismic evaluation of the track-bridge system is realized. Through the method, the method can be used for all high-speed railway bridge types and rails at present, the anti-seismic evaluation of the rail-bridge system based on the driving performance can be indirectly and quickly realized based on the mapping relation, a large amount of time-consuming and labor-consuming train-rail-bridge system finite element simulation calculation does not need to be carried out, and the calculation efficiency is improved. The efficiency is effectively improved, the cost is reduced, the calculation is simple and convenient, and the calculation result is accurate.

The invention relates to the technical field of building anti-seismic risk assessment, and discloses a building anti-seismic potential safety hazard assessment method and system based on multi-factor coupling, and the method comprises the following steps: collecting key factors of potential safety hazards of a to-be-assessed building, and endowing each piece of key factor information with a discrete value; constructing a nonlinear coupling model through key factor construction and an interaction effect between key factors; building state information is monitored in real time through a sensor, a damage or collapse possibility index is corrected according to monitoring data to obtain a correction value, and a second comprehensive risk value is obtained through recalculation; and according to the second comprehensive risk value obtained through calculation, building anti-seismic safety risk grades are divided. According to the method, the damage possibility index and the accident consequence severity index are constructed, the comprehensive risk value is calculated according to the damage possibility index and the accident consequence severity index, quantitative modeling evaluation from static attributes to the risk value is achieved, and the method is more scientific and objective compared with a traditional single-factor evaluation method with high empirical and subjective performance.

An article of manufacture for an earthquake safety protection device (ESPD) according to the present invention is disclosed. The ESPD consists of an earthquake support pole and mating support members to create survivable space around the support pole should a room be damaged in an earthquake. The ESPD may also comprise a reinforced frame within an interior door of a building. The reinforced frame resists damage from an earthquake that may prevent the interior door from opening. Opening or removal of the inner door protected by the reinforced frame creates a means of safely exiting a room in spite of damage to the interior door and its corresponding door frame. The ESPD may also include a mechanism to prevent a mobile hospital bed from moving about a room during an earthquake.

The invention provides a multi-friction damping anti-falling shock-absorbing spherical support, and relates to the technical field of bridge buildings. The multi-friction damping anti-falling shock-absorbing spherical support comprises an upper support plate, a plane sliding plate, a spherical crown lining plate, a spherical sliding plate, a pressure-bearing assembly, a high-friction sliding part, a wedge-shaped damping device, a lower support plate, a sleeve, an anchor rod and an anchor bolt, and the plane stainless steel sliding plate is arranged on the surface of an inner cavity of the upper support plate; the plane sliding plate is arranged above the spherical crown lining plate and makes contact with the plane stainless steel sliding plate, the spherical crown lining plate is placed on the spherical sliding plate, and the spherical sliding plate is installed at the upper end of the pressure bearing assembly. In the invention, the high-friction sliding piece is matched with the high-friction contact plate to realize primary friction energy consumption, the trapezoidal structure of the pressure-bearing assembly and the wedge-shaped damping device are used for extruding to realize secondary damping superposition energy consumption, and the limiting stop block is used for realizing rigid limiting, so that the problems of rigid collision and beam falling of a beam body are effectively solved; and the anti-seismic safety performance of the bridge is obviously improved.

The application discloses a transformer prefabricated base and a U-shaped energy consumption component selection method thereof. The transformer prefabricated base comprises a base body which is assembled based on a prefabricated component and is installed in a main body structure and separated from the main body structure; and a damping module which is connected between the base body and the main body structure and is used for energy consumption and anti-collision damping through the damping effect of the U-shaped energy consumption component. The U-shaped energy consumption component selection method is used for the transformer prefabricated base. The separation design is adopted to replace the rigid connection, the path of the seismic force transmitted from the main body structure to the base body is cut off, the decoupling of the seismic effect between the base body and the main body structure is realized, the seismic response amplitude and displacement offset of the transformer are significantly reduced, and the seismic redundancy of the foundation is greatly improved. The damping module is arranged between the base body and the main body structure, direct collision damage between the base body and the main body structure under the action of the earthquake or deformation is prevented, the damping effect is achieved, and the seismic safety and structural redundancy are improved.

The invention discloses a design method of an integral swing self-resetting structure for mounting a tension-compression energy-dissipation support, and relates to the technical field of civil engineering earthquake resistance, and the integral swing self-resetting structure comprises a tensile limiting device and a compression limiting device; the method specifically comprises the steps that a structural mechanical model is established, and the lateral stiffness of a traditional fixed foundation is calculated; setting a rigid body displacement ratio to determine the vertical and horizontal rigidity and strength of the support; carrying out finite element push-and-cover analysis to verify a rigid body displacement ratio; setting an additional damping ratio; carrying out seismic response spectrum analysis on the vertical seismic isolation structure; calculating the vertical natural vibration period of the structure and adjusting the rigidity according to the response spectrum; carrying out elastic-plastic time-history analysis to detect an interlayer displacement angle, acceleration and structural damage; checking the consistency of the additional damping ratio and the actual energy consumption; and finally, anti-overturning checking calculation under extremely rare earthquake is carried out to ensure that the support and the limiting device are in an elastic state. The energy dissipation capacity and anti-seismic safety of the structure can be effectively improved, and the structure is suitable for various building structures needing vertical and horizontal seismic isolation.

The invention discloses a method for generating a stress nephogram of a fault area tunnel anti-seismic structure, and belongs to the technical field of tunnel engineering anti-seismic design and analysis, and the method comprises the steps: dividing a tunnel structure into a plurality of units, and obtaining structural parameters, surrounding rock parameters and seismic parameters of the tunnel structure; then, generating a strength capability index according to the concrete strength, the steel bar strength and seismic parameters, generating a ductility capability index according to the seismic joint spacing, and generating an energy consumption index according to the surrounding rock modulus, the lining thickness and the steel bar density; the three are fused to obtain a comprehensive anti-seismic capacity index; and finally, calculating a color adjustment coefficient according to the index and generating a final stress nephogram. According to the method, the problem that a traditional method cannot visually reflect the anti-seismic safety level of the structure is effectively solved, multi-dimensional anti-seismic indexes are effectively integrated, the overall anti-seismic safety level of the structure is visually reflected, and the high-risk section of the fault area tunnel anti-seismic structure can be conveniently and rapidly identified.

The invention provides an anti-seismic early warning method and equipment for a wood structure node based on biomass modification in a green building, and is applied to the technical field of data processing. The method comprises the following steps: carrying out earthquake-proof early warning on biomass modified wood structure nodes in a green building, firstly obtaining node earthquake-proof related data, carrying out processing to capture stress, deformation and damage rules of the nodes in an earthquake, and generating real-time performance data and preliminary evaluation information; setting multi-level early warning thresholds in combination with scene characteristics, and generating early warning information and a detailed report; executing response measures according to the early warning level and optimizing a strategy to form an automatic response scheme; analyzing historical data through machine learning to identify a failure mode, and predicting future demands and planning suggestions; and finally, multi-link information is integrated, early warning effect comprehensive evaluation information is generated, and a whole-process technical support is provided for anti-seismic safety of green buildings.

The utility model discloses a kind of cantilever assembly type support hanger structures of rail transit vehicle depot, belong to rail transit technical field, the cantilever assembly type support hanger structure of this rail transit vehicle depot, comprising: two single-pitching channel steel beams, multiple double-pitching channel steel beams are fixedly connected between the outer wall of two single-pitching channel steel beams;And assembly component, assembly component includes: fixed base, support single-pitching channel steel, steel beam support base body and mounting fixed plate, fixed base is detachably connected to the top surface of one single-pitching channel steel beam.The cantilever assembly type support hanger structure of this rail transit vehicle depot is connected by single-pitching channel steel beam and main structure beam, forms stable stress transmission path, while double-pitching channel steel beam carries multiple levels of mechanical and electrical pipeline support cross arm, reliably connected by overhanging support arm and main structure, forms stable bearing system, both meet pipeline comprehensive arrangement demand, also consider construction convenient and anti-seismic safety, beneficial to construction operation.

The invention discloses a method for arranging a dam crest formwork increasing area on a core-wall rockfill dam to control water storage cracking and an earthquake response whip effect, a formwork increasing rockfill area is arranged at the position 1 / 3-1 / 5 of the dam height below the dam crest, the filling standard is controlled by adopting double indexes of porosity and relative density, it is guaranteed that the formwork increasing rockfill area reaches the full compaction degree, and the dam crest formwork increasing area is arranged at the position 1 / 3-1 / 5 of the dam height. The crack of the core-wall rock-fill dam is controlled, the whip effect of earthquake response of the rock-fill dam is effectively reduced, and the method for controlling the crack of the dam and improving the anti-seismic safety performance is expected to be achieved.

The utility model belongs to civil engineering technical field discloses a kind of vertical tensile isolation bearing, including lower connecting plate and upper connecting plate, lower connecting plate and upper connecting plate are provided with support between, the outer surface of support is provided with limiting unit, the limiting unit includes lower vertical limiting plate and upper vertical limiting plate, the upper vertical limiting plate is fixedly connected with upper connecting plate, the upper end of lower vertical limiting plate is abutted with upper vertical limiting plate, and lower end is fixedly connected with lower connecting plate, when vertical tensile force appears, lower vertical limiting plate and upper vertical limiting plate can effectively limit the vertical deformation of support, prevent support tensile damage, when facing complex earthquake situation, it is more stable and reliable, can continuously play the role of isolation, significantly improve the seismic safety of building, bridge and important facility.

The invention relates to the technical field of anti-seismic safety of power systems and structures, and provides a multi-source data intelligent-driven power transmission line earthquake risk prediction method and system in order to solve the problems that in the prior art, a model is single in applicable object, cannot be dynamically updated and lacks risk closed-loop management. The multi-source data intelligent driving power transmission line earthquake risk prediction method comprises the steps of processing an actual earthquake wave time history by using a continuously updated mixed deep learning model, and predicting a top displacement time history of a power transmission line to serve as a power transmission line dynamic response index; comparing the predicted top displacement time history of the power transmission line with a known structural performance limit value of the power transmission line, judging a structural performance state of the power transmission line and a corresponding risk level of the structural performance state, and converting the predicted top displacement time history into occurrence probabilities of different structural performance states by using a vulnerability curve method; the method has the characteristics of high prediction precision and strong adaptability, and can realize real-time risk early warning.

This invention discloses a probabilistic analysis-based method for assessing the risk of liquefaction damage to dam foundations. The method includes establishing seismic motion parameter hazard curves for the dam foundation surface under different working conditions, based on on-site seismic safety assessment reports and considering the compaction effect of crushed stone piles on the dam foundation and the amplification effect of overlying stress on ground stress; plotting spatial distribution maps of soil parameters in the dam foundation soil under different working conditions; selecting a suitable simplified calculation model for liquefaction damage; and performing dam foundation liquefaction damage analysis based on the seismic motion parameter hazard curves and the spatial distribution maps of soil parameters, combined with the simplified calculation model, to obtain seismic liquefaction probability distribution maps of each soil layer under different working conditions. The seismic liquefaction risk of the soil is then assessed based on these probability distribution maps. This invention can effectively guide the seismic design and risk management of dam foundations, comprehensively consider the uncertainties of earthquake, geological, and soil parameters, and contribute to improving the safety and reliability of water conservancy projects.

The application discloses a bridge earthquake vulnerability prediction method and system based on machine learning, comprising: obtaining a set of earthquake parameters, constructing a nonlinear mapping model using a deep neural network, predicting vulnerability probability based on the nonlinear mapping model to obtain preliminary vulnerability probability data; obtaining bridge structure data to construct a bridge geometric model, analyzing the segmented material heterogeneity of the bridge geometric model, and if the heterogeneity exceeds a preset threshold, calculating segmented response data under seismic action; based on the segmented response data, analyzing the spatial difference vulnerability probability distribution of the bridge as a whole to obtain fine prediction results; if the deviation between the fine prediction results and the preliminary vulnerability probability exceeds a preset threshold, adjusting the nonlinear mapping model, outputting the updated vulnerability probability distribution, and obtaining the final vulnerability prediction results. The application significantly improves the accuracy and reliability of bridge earthquake vulnerability prediction, and has important significance for improving the seismic safety of bridge structures.

The application provides a dam-reservoir hydrodynamic fluid-solid coupling simplified efficient calculation method and application, the reservoir is discretized by SBFEM or FEM, and the hydrodynamic pressure additional mass matrix is calculated; according to the physical meaning and characteristics of the additional mass matrix, the hydrodynamic pressure additional mass matrix is simplified, the calculation time consumption is greatly reduced, and the calculation efficiency is improved under the premise of ensuring good precision, the simplified efficient calculation and analysis of the dam-reservoir hydrodynamic fluid-solid coupling under the condition of earthquake can be realized, the numerical calculation result has higher precision, the coupling calculation time consumption is greatly reduced, an accurate and efficient method is provided for the dam-reservoir hydrodynamic fluid-solid coupling analysis and anti-seismic safety evaluation, and technical support is provided for the application of the dam fluid-solid coupling analysis method in practical engineering or large-scale dam dynamic fine analysis.

The utility model relates to the technical field of earthquake safety, in particular to a self-resetting type earthquake safety controller which comprises a base, an arc-shaped curved plate, a sliding block, a top plate and a buffer structure, the top of the base is fixedly connected with the arc-shaped curved plate, the top of the arc-shaped curved plate is slidably connected with the sliding block, and the top of the sliding block is fixedly connected with the top plate. The bottoms of the first fixing seats are fixedly connected to the top of the base, the tops of the first fixing seats are fixedly connected with first spherical hinges, the tops of the second fixing seats are fixedly connected to the bottom of the top plate, the bottoms of the second fixing seats are fixedly connected with second spherical hinges, and cylinder bodies of the viscous dampers are fixedly connected to ball pins of the first spherical hinges. A piston rod of the viscous damper is fixedly connected to a ball pin of the second spherical hinge. Due to the arrangement of the buffer structure, vibration generated by an earthquake can be absorbed, the sliding block and the top plate can be automatically reset, and use is more convenient and faster.

The application discloses a seismic regional safety evaluation system based on data warehousing and three-dimensional visualization, which comprises a data acquisition module, a data preprocessing module, a three-dimensional visualization establishing module, a seismic safety evaluation module and a result output module, and relates to the technical field of data processing. The seismic regional safety evaluation system based on data warehousing and three-dimensional visualization extracts image data and parameter data, establishes a geological three-dimensional model by using drilling parameters, image data and geological feature data, establishes a ground three-dimensional model by using building parameters and geological feature data, and fuses the geological three-dimensional model and the ground three-dimensional model to form a grade evaluation model for evaluating the safety of a seismic region. By means of advanced three-dimensional modeling technology, the system can intuitively display the spatial distribution characteristics of underground rock layers and simultaneously establish an intelligent correlation mechanism among multidimensional data, so that a more scientific and efficient solution strategy is provided for seismic risk evaluation work.

The invention belongs to the field of bridge structure aseismic design and safety evaluation, and relates to a mechanism enhanced physical information neural network-based bridge random vibration analysis method, which comprises the following steps of: establishing a bridge structure motion equation configured with a nonlinear tuning inerter damper; a mechanism enhanced physical information neural network model comprising a three-head prediction module and a three-state gating mechanism is constructed, and the three-head prediction module predicts and decouples nonlinear restoring force into three independent subtasks of acceleration, speed and symbol. The three-state gating mechanism divides time steps into a security domain, a crossing domain and a singular point zero point domain according to the speed and adopts a differential supervision strategy; generating a sample based on a random near-fault seismic motion model to train the network; the trained mechanism enhanced physical information neural network is deeply fused with a direct probability integral method, and the random vibration response and the dynamic reliability of the bridge structure are efficiently and accurately calculated. The invention provides an efficient and reliable analysis tool for anti-seismic safety assessment of a bridge structure.

The invention provides a river sluice dam optimization method and system based on anti-seismic simulation, and the method comprises the steps: obtaining design parameters, geological conditions and actual operation conditions of a river sluice dam, and drawing up a plurality of calculation conditions including earthquake load action combinations; carrying out structural stress and deformation calculation on the river sluice dam under each calculation working condition to obtain a quasi-static method stress deformation result; on the basis of the quasi-static method stress deformation result, a target evaluation area is recognized, dynamic time history analysis of the dam body and the dam foundation system is carried out for the target evaluation area according to design parameters and geological conditions, and an earthquake dynamic response result is obtained; performing comprehensive safety evaluation on the anti-seismic stability and the structural strength of the river sluice dam by fusing a quasi-static method stress deformation result and an earthquake dynamic response result; according to the comprehensive safety evaluation result, a processing scheme is provided for the river sluice dam structure which does not meet the preset anti-seismic safety standard, and more comprehensive, reliable and refined comprehensive evaluation of the anti-seismic performance of the river sluice dam is achieved.

The present application belongs to the technical field of disc cabinet, and particularly relates to an indoor anti-toppling safety type anti-seismic disc cabinet. The disc cabinet body is provided with a plurality of first damping springs at the bottom, two damping mechanisms are jointly installed between the disc cabinet body and the base, a plurality of columns are provided at the top of the base, and the second damping springs are jointly provided between the columns and the disc cabinet body. The beneficial effects of the present application are as follows: when the vibration sensor detects a strong earthquake signal during use, the synchronous driving assembly is immediately started, the side support rod is quickly unfolded through the screw rod lifting mechanism, and a rigid triangular support structure is formed. The active anti-toppling system and the bottom damping system work together, can dissipate seismic energy through the hydraulic damper, and can provide anti-overturning torque through mechanical support, so that the disc cabinet can maintain a stable posture under strong earthquake conditions, effectively prevent equipment damage and personnel casualty risks caused by the toppling of the cabinet body, and significantly improve the anti-seismic safety performance.

The present application belongs to the technical field of underground engineering and computer-aided engineering analysis, and particularly relates to a kind of multi-modal data seismic safety collaborative analysis method for near tunnel engineering. By integrating engineering geology, structure design, construction monitoring and multi-level ground motion data, a three-dimensional numerical model is constructed that integrates geological and structural information. First, a fine simulation of the entire construction process and static load operation is performed to obtain the baseline mechanical state. Based on this, multi-task ground motion dynamic time history analysis is carried out to dynamically capture the dynamic response of the surrounding rock and structure. The static and dynamic analysis results are interpreted collaboratively, with a focus on analyzing the time and space evolution of the tunnel anchor and the plastic zone of the surrounding rock of the adjacent highway tunnel, as well as the risk of connection. Multiple quantitative collaborative indicators are extracted, and an interactive analysis report is automatically generated that integrates three-dimensional visualization scenes, multi-dimensional comparison charts, and safety interpretation conclusions based on a rule base. This provides systematic decision support for seismic design, construction control and safety evaluation of near engineering.

This invention discloses a low-carbon design method for nearshore stainless steel-clad reinforced steel bridges. The method includes: obtaining seismic time-history acceleration curves; identifying the pier section design variables for nearshore long-span beam bridges; obtaining the residual steel reinforcement cross-sectional area after several years considering pitting corrosion; obtaining the expected value of seismic loss cost over the entire life cycle of the bridge; obtaining the direct construction cost and carbon emissions of the bridge under different pier section design variables; constructing a dataset by using the pier section design variables as feature data and the direct construction cost, carbon emissions, and expected seismic loss cost as target data; obtaining a surrogate model based on the dataset; obtaining the Pareto optimal solution set based on the surrogate model and the NSGA-II multi-objective genetic algorithm; and obtaining the optimal design scheme based on the entropy weight method combined with the TOPSIS method. This invention solves the technical problem that existing nearshore bridge design methods struggle to simultaneously consider durability, seismic safety, economy, and environmental impact.

The invention belongs to the technical field of geotechnical engineering, and provides a gravelly soil liquefaction settlement prediction method based on a dynamic penetration test, which can make full use of in-situ dynamic penetration test data, comprehensively considers physical characteristics of gravelly soil and uncertainty of liquefaction settlement, and provides a gravelly soil liquefaction settlement prediction method based on a dynamic penetration test. Therefore, the dynamic response characteristics are effectively reflected, and a scientific basis is provided for anti-seismic safety evaluation and design of the foundation. According to the technical scheme, the gravelly soil liquefaction settlement prediction method based on the dynamic penetration test comprises the following steps that S1, a DPT test is conducted on a site, the DPT hammering number is corrected, and a volume strain curve is established, S2, prediction settlement and the probability of exceeding a given settlement value are calculated, and S3, a liquefaction settlement exceeding probability curve is drawn according to different target settlement values.

The invention provides a steel structure house based on variable-rigidity wallboards and a design method thereof, and relates to the technical field of steel structure house design, specifically, the steel structure house comprises the wallboards and a steel frame body, and frame columns of the steel frame body sequentially comprise a concrete core, rectangular steel pipe columns and a reinforced concrete coating layer from inside to outside; the reinforced concrete coating layer comprises a reinforcing mesh layer; the wallboard comprises an inner acanthus, a heat insulation board and an outer acanthus which are arranged in sequence; a wall top connecting assembly is arranged at the top of the inner acanthus, and a wall bottom connecting assembly is arranged at the bottom of the inner acanthus; the inner leaf plate comprises a grid structure formed by a plurality of groups of rib columns and rib beams; and filling building blocks are arranged in grid holes of the grid structure. According to the scheme, the functions of the wallboards can be flexibly switched according to the requirements of a steel structure house, and the anti-seismic safety, the applicable height and the economical efficiency of the whole structure can be remarkably improved; meanwhile, multiple functions of heat preservation, moisture prevention, sound insulation and the like are also considered.

The invention discloses a safety early warning method based on while-mining seismic detection, a storage medium and electronic equipment. The method comprises the following steps: determining the position of a while-mining area; according to the position of the mining-following area, a first safety radius with the mining-following area as the center is configured; arranging a first seismic sensing edge network on the first safety radius, performing real-time detection according to the first seismic sensing edge network, and outputting a first seismic sensing signal set corresponding to the first safety radius; performing signal restoration on the first seismic sensing signal set by using a signal restoration module, and outputting a seismic restoration signal set; and inputting the earthquake restoration signal set into an earthquake safety early warning module for safety analysis, outputting an earthquake risk index, and generating a safety early warning signal based on the earthquake risk index. According to the invention, the technical effect of improving the accuracy of seismic signal identification and the monitoring stability is achieved.

The invention relates to the technical field of shear wall performance evaluation, and discloses a biaxial coupling anti-seismic performance evaluation method and system for a flanged shear wall, and the system comprises an acquisition and preprocessing module which is used for acquiring geometric, material and biaxial coupling load data of the flanged shear wall in real time; after processing, a parameter-performance association database is established in combination with historical data; the model building module performs modeling based on the database and introduces a pre-diagnosis algorithm to identify potential damage risk points; the analysis module inputs real-time data to calculate an anti-seismic performance index, judges a health level, analyzes a degradation rate, predicts a fault probability and generates a pre-diagnosis report; and the management and evaluation module generates a management strategy, outputs an evaluation report, feeds back a data iterative optimization model, and realizes dynamic evaluation of the anti-seismic performance of the shear wall. Scientific basis is provided for safety management of the shear wall, and the anti-seismic safety and operation and maintenance reasonability of the structure are effectively guaranteed.

The invention discloses a feature extraction method for transverse joint opening prediction. The method comprises the following steps: step 1, selecting a plurality of seismic oscillation records; 2, a high arch dam finite element model is established, and dynamic response is obtained through calculation; 3, decomposing acceleration responses of all monitoring points and obtaining multi-scale component signals; 4, extracting characteristic indexes of the opening degree, the seismic wave acceleration and the component acceleration; 5, correlation analysis is carried out on all the features; step 6, an optimal input feature subset is screened out by using a Boruta-SHAP algorithm; and step 7, establishing a Light GBM model, and verifying the validity of the feature extraction method. According to the method, the dynamic physical mechanism and the prior information of the transverse joint in the earthquake process are fully fused, the correlation characteristics between the monitored acceleration response and the maximum opening degree are deeply excavated, and the problem that the traditional health monitoring method of the high arch dam is insufficient in time history identification of the maximum opening degree of the transverse joint is solved; and data support and decision basis can be provided for anti-seismic safety assessment of the arch dam.

The application discloses a kind of roadway anti-seismic safety factor calculation method and safety prediction method, step 1, the minimum mine shock energy E that roadway can resist is determined by all blasting microseismic data in pit min ; Step 2, according to the propagation attenuation law of vibration wave in rock mass, the maximum mine shock energy E max That can be expected to occur is calculated from any position to the remaining energy E m Of roadway;Step 3, according to the minimum mine shock energy E min And E m Resisted by roadway, the anti-seismic safety factor β of roadway is calculated. Wherein, the physical meaning of roadway anti-seismic safety factor calculation formula involved is clear, the parameter calculation involved in formula is clear, the acquisition of blasting microseismic data involved in the calculation process is relatively simple, the cost is very low, and it is strong in universality.