107 results about "Seismic safety" patented technology

The invention relates to the field of seismic state recognition, and provides a converter station vector seismic state recognition method and system based on distributed optical fibers, and the method comprises the steps: collecting multi-dimensional vibration signal data of a converter station, and obtaining seismic monitoring data through processing; performing phase demodulation processing, time difference analysis and space vector decomposition algorithm processing on the seismic monitoring data to obtain seismic wave propagation vector characteristic data, and performing characteristic integration and optimization to obtain a seismic wave comprehensive state characteristic data set; identifying and classifying the seismic wave comprehensive state feature data set to obtain a seismic wave form classification result; performing analysis based on the seismic wave form classification result to obtain a converter station seismic state evaluation result; and carrying out comparative analysis on the evaluation result and a threshold value, generating earthquake early warning information of the converter station, and providing a corresponding emergency response suggestion according to the earthquake early warning information. According to the invention, accurate identification and classification of seismic waves are realized, and the earthquake safety early warning capability of the converter station is improved.

The invention discloses a main shock and aftershock full-life vulnerability analysis method based on active learning, and belongs to the field of structural anti-seismic safety evaluation. The method solves the problems that an existing full-life analysis method needs high calculation cost and does not consider the influence of environmental factors and main shock and aftershock coupling effects on the initial damage of the structure. The agent model is constructed based on high-precision and low-precision data fusion, and a meta-learning mechanism is introduced to describe internal association among different degradation states, so that the sample utilization efficiency is improved; a generalized learning function is combined with a two-stage active learning strategy to dynamically select a training sample point with the most information amount, efficient refinement of a prediction model in each degradation scene is gradually realized, the calculation cost is further reduced, and the agent model prediction precision is improved. And finally, through a time-varying two-dimensional limit state equation, explicitly considering the correlation between the initial damage evolved along with time and the structure residual capacity, and effectively fusing the coupling effect of environmental degradation and the seismic sequence. The method can be applied to structure vulnerability analysis.

The invention discloses a quantitative evaluation method for the ultimate seismic capacity of a gravity dam. The quantitative evaluation method comprises the steps that S1, a gravity dam-foundation system finite element analysis model considering strength and stable damage at the same time is constructed; s2, scaling a design earthquake to different earthquake intensity levels by adopting an incremental dynamic analysis method; s3, carrying out multiple groups of nonlinear dynamic response analysis to obtain a strong shock response result of the gravity dam-foundation system; s4, based on the response result, constructing an evaluation index for representing the anti-seismic performance of the gravity dam-foundation system; and S5, constructing a broken line graph in which different performance evaluation indexes change along with different zoom coefficients, and determining the ultimate seismic capacity of the gravity dam according to the zoom coefficient corresponding to the maximum slope in the broken line graph. According to the method, gravity dam-foundation system anti-seismic safety evaluation is developed from a single failure mode and a single index to comprehensive consideration of multiple failure modes and multiple evaluation indexes, the synergistic effect of multiple failure mechanisms in actual engineering is reflected, and a theoretical basis is provided for anti-seismic safety evaluation and risk management.

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.

The invention discloses a construction method of a shale gas exploitation area seismic oscillation parameter prediction model, and belongs to the technical field of seismic safety evaluation. Comprising the following steps of: by supplementing seismic line data such as existing destructive earthquakes and adopting a long and short axis seismic intensity joint attenuation relation model, performing regression to obtain an intensity attenuation relation of a moderate-intensity region; based on an NGA-West2 strong earthquake database, screening bedrock records of a free site of the reference area, and establishing an earthquake motion parameter prediction equation based on the hypo-central distance; then, converting the reference region prediction equation into a hypo-central distance prediction equation suitable for a moderately strong region through an intensity mapping method; and utilizing broadband speed records around the shale gas exploitation area, and adopting a step-by-step regression method to correct the magnitude item to obtain a corrected seismic oscillation prediction equation. According to the method, the adaptability of shallow source induced earthquakes is remarkably improved, the lower limit of the earthquake magnitude is expanded to 4.0, the regional characteristics are fully considered, and the method is suitable for earthquake safety evaluation of the southern Sichuan shale gas exploitation area.

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 relates to the technical field of water conservancy and hydropower engineering, in particular to a construction method of an anti-seismic beam structure of an ultrahigh concrete face rockfill dam, which comprises the following steps: 1) preparing materials for pouring an anti-seismic beam; 2) pouring an anti-seismic beam; (3) leveling the foundation surface of the site where the anti-seismic beam is installed; 4) measuring, positioning and marking the mounting position of the anti-seismic beam on the leveled site; (5) inspection is conducted before laying, the anti-seismic beams which do not meet the installation requirement are replaced or repaired, and the anti-seismic beams are transported to an installation site; (6) the anti-seismic beams are laid through hoisting equipment; 7, the laid anti-seismic beams are checked and corrected, and the adjacent anti-seismic beams are connected through steel wire ropes. The method provides a novel anti-seismic structure which can be synchronously constructed with the dam body, is good in anti-seismic effect, standard in operation and capable of effectively constructing reliability, and the anti-seismic safety problem of the ultrahigh concrete faced rockfill dam in a high-intensity area is solved.

The utility model relates to the technical field of building structures, and discloses a building connecting joint which comprises a column body. A beam body; the connecting frame comprises a first plate body and a second plate body, the first plate body is connected with the column body, and the second plate body is vertically arranged on the first plate body; the sliding support comprises a first seat body, a spherical lining plate and a second seat body which are sequentially arranged from bottom to top, the first seat body is installed on the second seat body, the top of the first seat body is provided with a spherical concave surface, one end of the convex surface of the spherical lining plate is placed on the spherical concave surface, and the spherical lining plate can slide on the spherical concave surface; the lower end surface of the second seat body is connected with one end, deviating from the convex surface, of the spherical lining plate; the upper end surface of the second seat body is connected with the beam body. The building connecting joint can release temperature and pressure and guarantee the anti-seismic safety of a building structure.

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 provides a concrete dam capable of achieving dam heel self-repairing, the concrete dam comprises a dam body, a detection piece and a self-repairing microcapsule, a self-repairing reinforcing area is formed at the dam heel of the dam body, and the self-repairing reinforcing area is provided with a self-repairing concrete main body; the detection piece is arranged in the self-repairing concrete main body so as to be suitable for detecting the cracking condition of the self-repairing concrete main body; the self-repairing microcapsule is arranged in the self-repairing concrete main body and is suitable for releasing a repairing agent when the self-repairing concrete main body cracks; the repairing agent is suitable for reacting with water, and the reaction product is suitable for filling cracks. According to the method, self-repairing of dam body cracking can be achieved, the integrity of the dam body is restored, the anti-seismic safety performance of the dam body is guaranteed, and the stability and reliability of the dam are improved; and meanwhile, the manual maintenance cost and time are reduced, and the maintenance efficiency is improved.

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 embodiments of the present application provide a method, device, storage medium, and electronic device for rapid earthquake safety assessment of a gravity dam based on strong vibration monitoring, which relates to the field of earthquake monitoring technology. The method includes: deploying strong vibration monitoring points on a gravity dam section; when an earthquake occurs, obtaining acceleration response data at the strong vibration monitoring points; establishing a one-dimensional finite element model of the gravity dam section; performing computational analysis based on the acceleration response data and the one-dimensional finite element model; and conducting a safety assessment of the gravity dam based on the computational analysis results. The present application utilizes the monitored acceleration response data and the established one-dimensional finite element model to rapidly calculate the stress value of the gravity dam under earthquake action, and then rapidly determines whether the gravity dam is safe based on the stress value so that corresponding emergency measures can be taken. The application has broad application value.

The invention discloses a deep anti-sliding stability evaluation method for a gravity dam formed by complex slip crack surfaces in a strong earthquake region. The method comprises the steps that S1, a dam-foundation system finite element analysis model of a deep sliding block body formed by weak structural surfaces in foundation rock mass is constructed; s2, based on the constructed model, dividing the dam-deep sliding block body into strip blocks in the vertical direction, wherein the number of the strip blocks is equal to that of structural surfaces of the deep sliding block body; s3, extracting the dynamic internal force of the sliding surface on each block at each time step, respectively taking the dynamic internal force and the static load acting on each block as external force, gradually solving the action ratio coefficient of the deep anti-sliding stability resistance of the gravity dam at each time step, and drawing a time history curve of the action ratio coefficient of the deep anti-sliding stability; and S4, evaluating the deep anti-sliding stability of the gravity dam according to the minimum deep anti-sliding stability action ratio coefficient in the time history curve. According to the method, comprehensive and comprehensive evaluation can be carried out on deep-layer anti-sliding stability and anti-seismic safety of the gravity dam in the strong earthquake region, so that long-term safe operation of the dam is ensured.

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.