256 results about "Tunnel safety" patented technology

The invention belongs to the technical field of tunnel safety monitoring, and particularly relates to a rock stratum stress-deformation coupled tunnel safety real-time dynamic modeling method, which comprises the following steps of: embedding a rock mass mechanical relationship into a neural network model as a hard constraint, and establishing explicit mapping of monitoring data and a physical field, a model parameter field is dynamically optimized by adopting ensemble Kalman filtering real-time general field detection data, and a data driving and physical mechanism collaborative deduction mechanism is designed, so that long-term prediction error accumulation is effectively inhibited; a stress field, a deformation field and other physical quantities deduced and output by the model are directly utilized to calculate disaster risk indexes with clear mechanical significance, and a physically interpretable early warning decision is realized by fusing fuzzy reasoning and multi-source risks; the technical problems of physical misalignment, weak long-term generalization and poor early warning interpretability of a data-driven model are solved.

The invention provides a tunnel event and warning lamp acousto-optic linkage strategy generation system based on AI decision, and relates to the technical field of intelligent traffic, and the method comprises the steps: collecting tunnel traffic event data, vehicle structured data, vehicle coordinates, vehicle flow, vehicle speed, and brightness data inside and outside a tunnel in real time, so as to obtain multi-source heterogeneous data; according to the multi-source heterogeneous data, taking the data matching degree, the space-time consistency and the event confidence as multi-objective optimization dimensions, constructing a weighted objective function, generating a Pareto optimal solution set through a multi-objective optimization algorithm, screening the solution set based on space-time constraint conditions, and removing conflict hypotheses; and determining the final event type and the structured event description of the three-dimensional geographic coordinates. The problems of large illumination energy consumption and poor system linkage in existing tunnel safety management are solved.

The invention relates to the technical field of geotechnical engineering and risk assessment, discloses a tunnel base subsurface erosion disaster-caused risk assessment method and system, and aims at solving the problems that in the prior art, due to the fact that static expert experience is relied on, the dynamic adaptability of a model is insufficient, and complex incidence relation cognition is limited. Comprising the steps that multi-source heterogeneous monitoring data are collected and preprocessed, a tunnel space relevance model based on a graph neural network is constructed, subsurface erosion process time sequence dynamics is learned in combination with a gating circulation unit network, and subsurface erosion disaster-causing risk indexes are generated; and when the risk exceeds a threshold value, deconstructing the risk factor by using an SHAP algorithm. Through adoption of the technical scheme, accurate, dynamic and interpretable evaluation of tunnel base subsurface erosion disaster-caused risks can be realized, the accuracy, timeliness, objectivity and practicability of evaluation are improved, and intelligent decision support is provided for tunnel safety operation and maintenance.

The invention relates to the technical field of tunnel defect identification, in particular to a tunnel defect identification method based on a dielectric distribution diagram. According to the method, on the basis of AI rock-soil perspective radar field monitoring, gprMax simulation and laboratory electromagnetic data, a two-dimensional dielectric distribution diagram is generated through variational Bayesian inversion fusion. Through multi-scale spectral clustering and expert knowledge, a potential abnormal region is automatically identified, and then accurate classification and identification of a defect region are realized by adopting graph form constraint propagation and integrating a Transform-graph neural network model. And finally, projecting an identification result to an original image, and generating a visual defect labeling layer and a structured report. According to the invention, high-precision, automatic, visual and structured detection of tunnel structure defects is realized, the intelligent level and risk early warning capability of tunnel safety operation and maintenance are significantly improved, and the digitization and intelligent process of tunnel operation and maintenance management is promoted.

The invention discloses a comprehensive intelligent monitoring decision-making system and method for an overlapping shield tunnel system. The system comprises an information acquisition system, an iterative optimization state real-time evaluation system and an intelligent maintenance decision-making system. Firstly, a preset model is trained through data such as numerical calculation; operating measured data to train a feedback model, and weighting output results of the two models to obtain a tunnel deformation predicted value; then establishing an experience overlapping tunnel safety evaluation system and an iterative optimization evaluation system, performing deep association on the tunnel state, damage and maintenance decision through association degree intelligent real-time analysis, realizing tunnel state real-time monitoring, tunnel damage real-time capturing and tunnel maintenance decision real-time updating, performing intelligent matching on maintenance measures, and performing real-time monitoring on the tunnel state, the tunnel damage and the maintenance decision. And the prediction model and the safety evaluation system are iteratively optimized according to operation effect feedback. According to the invention, real-time perception, intelligent diagnosis and maintenance of the whole life cycle overall service performance of the overlapping shield system are realized, and the long-term service quality of the overlapping shield tunnel structure is improved.

The invention relates to the technical field of tunnel safety monitoring, in particular to a tunnel potential safety hazard detection method and system based on point cloud data, and the method comprises the steps: employing a three-dimensional laser scanning device, carrying out the movable scanning in a tunnel along the longitudinal direction, and obtaining the original three-dimensional point cloud data of a tunnel lining surface structure; denoising and registering the original three-dimensional point cloud data to generate an overall three-dimensional point cloud model representing the current lining structure state of the tunnel; inputting the overall three-dimensional point cloud model into a trained tunnel crack recognition neural network model, and recognizing and positioning cracks of the tunnel lining surface structure; and quantitative calculation of geometric parameters is carried out based on the identified crack, and a tunnel crack analysis report is generated. According to the method, automation, quantification and intelligentization of tunnel crack detection are realized, the three-dimensional geometric parameters of the crack can be accurately calculated, and the time sequence development of the crack can be tracked and the future trend can be predicted.

The invention discloses an intelligent tunnel multi-modal data collaborative management method and device based on deep learning, and relates to the technical field of artificial intelligence, and the method comprises the steps: determining the spatial topological relation of a multi-source heterogeneous sensor in a tunnel, mapping the multi-modal data to a digital twin unified coordinate system, and carrying out the timestamp compensation, thereby obtaining a digital twin unified coordinate system; and multi-modal alignment data is formed. And extracting space-time and topological features of the data, calculating a feature correlation degree, embedding the data into a tunnel semantic space according to the feature correlation degree, evaluating environmental complexity and generating a modal weight coefficient. And carrying out safety evaluation on the joint feature vector obtained by weighting, and judging the safety state of the tunnel, thereby overcoming the limitation of single-mode monitoring in a complex environment.

The invention relates to the technical field of subway tunnel safety detection, in particular to a YOLO-V8 subway tunnel water leakage detection method and system based on an improved Transform. The method comprises the following steps: step 02, acquiring point cloud data of a subway tunnel target section, expanding the point cloud data through projection, generating a two-dimensional water leakage image, and preprocessing the two-dimensional water leakage image; step 04, inputting the preprocessed two-dimensional water leakage image into a pre-trained water leakage detection model, and outputting a detection result based on the water leakage detection model; and 06, according to a detection result output by the water leakage detection model, determining the position and severity of the water leakage disease in the target section of the subway tunnel. According to the method, higher water leakage detection robustness identification precision can be kept in a dark and disordered subway tunnel environment, and the method has a high practical value.

The invention discloses a tunnel trolley supporting system and method intelligently adapting to geological conditions, and belongs to the technical field of tunnel safety supporting. The device comprises a supporting truss, a rigid supporting mechanism and a flexible supporting mechanism. Wherein the flexible supporting mechanism comprises an air bag which is used for preliminarily supporting the surrounding rock of the tunnel; the rigid supporting mechanism comprises a mounting frame, a plurality of air chambers are arranged in the mounting frame, and adjusting assemblies are arranged in the air chambers; the adjusting assembly comprises a piston plate and a piston rod located on the piston plate, and the free end of the piston rod penetrates through the mounting frame, then extends into the air bag and is connected with a supporting plate. The supporting plates are used for carrying out secondary supporting on the tunnel surrounding rock from the interior of the air bag, the supporting pressure of each supporting plate can be adjusted through the inflation pressure in the corresponding air chamber so as to adapt to different geological conditions, good self-adaptive capacity is achieved, and dynamic distribution of the surrounding rock pressure is achieved.

The invention provides a traffic tunnel preventive monitoring and risk early warning system based on an unmanned aerial vehicle group, and relates to the technical field of traffic tunnel safety monitoring, and the method comprises the steps: laying reference mark points on the inner surface of a tunnel as monitoring nodes, collecting the crack width, surface temperature and deformation of each node through the unmanned aerial vehicle group, and calculating the crack width, surface temperature and deformation of each node; and constructing a multi-dimensional feature vector and calculating a space-time weighted distance in combination with the space coordinates and the timestamps. And adjusting a neighborhood search radius according to the tunnel curvature, identifying a risk region through a density clustering algorithm, and marking unclustered abnormal nodes as isolated risk points. And dividing risk levels based on comparison of the structure safety degree index and a dynamic threshold value, and registering a result with the BIM model to realize three-dimensional visualization. Trend early warning is triggered for an area with monotonically decreasing monitoring safety index for three continuous times, full-process automatic monitoring from data acquisition, intelligent analysis to risk early warning is realized, and the accuracy and timeliness of tunnel structure health monitoring are remarkably improved.

The invention provides a tunnel blasting vibration reduction method and system based on asymmetric slotting, relates to the technical field of geotechnical engineering numerical simulation, and provides an integrated intelligent blasting vibration reduction system of asymmetric slotting structure optimization-quantum genetic algorithm collaborative optimization-model dynamic regulation. Triple fusion of a physical mechanism, a mathematical algorithm and an information technology of proximity tunnel blasting vibration control is creatively achieved, the bottleneck that a traditional method depends on experience trial and error, model static lag and vibration control and construction efficiency are difficult to consider at the same time is broken through, vibration speed control precision is improved, tunneling efficiency is improved, and meanwhile the construction efficiency is improved. The dynamic adaptability to complex geological conditions is remarkably enhanced, and a new generation of integrated solution is provided for safe, efficient and intelligent construction of the adjacent tunnel.

The invention discloses a rock mass fracture early warning method for a hydraulic tunnel, belongs to the technical field of tunnel safety monitoring, and can solve the problem that an existing method cannot specifically recognize isolated impact noise and rock mass real fracture signals in the construction period of the hydraulic tunnel under the background of strong noise. The method comprises the following steps: S1, acquiring an original micro-seismic signal synchronously acquired by a sensor array in a hydraulic tunnel; s2, detecting a micro-seismic event from the original micro-seismic signal to obtain an event signal set, and determining a reference channel signal according to the event signal set; s3, extracting cross correlation coefficient peak values of event signals of each channel in the event signal set and reference channel signals, and counting the number of channels of which the cross correlation coefficient peak values exceed a cross correlation coefficient threshold value as the number of coherent channels; and S4, calculating a frequency band energy ratio of the reference channel signal, and generating a rock mass fracture early warning signal when the number of coherent channels and the frequency band energy ratio meet preset conditions. The method is used for rock mass fracture early warning of the hydraulic tunnel.

The invention discloses a tunnel detection data informatization management platform based on the Internet of Things. The tunnel detection data informatization management platform comprises a data acquisition module, a data processing module, an informatization management module, a real-time early warning module and a linkage feedback module. Through the synergistic effect of the five modules, various state data in a tunnel can be collected, the collected data are subjected to standardization processing and fusion association, the data standardization degree is improved, data islands are eliminated, and information can be efficiently integrated, so that the sharing level and the deep analysis and utilization level are improved; the method is advantaged in that effective decision support is provided for tunnel management operation, effective processing and analysis can be further carried out on integrated data, key information can be rapidly and accurately extracted from massive detection data, comprehensive evaluation and prediction of the tunnel structure safety state are facilitated, and increasing tunnel safety operation requirements are satisfied.

The invention discloses a tunnel safety assessment method based on a deep learning technology, and the method comprises the steps: collecting safety monitoring data in a tunnel, and carrying out the preprocessing of the collected safety monitoring data; outputting time sequence characteristics based on a long short-term memory (LSTM) network and / or a Transform model of a converter; local space feature extraction is carried out based on a convolutional neural network CNN; outputting global structure features based on a graph neural network GNN; performing joint feature extraction on the time sequence features, the local spatial features and the global structure features based on a multi-input deep neural network DNN and / or a gated loop unit GRU model, and outputting joint features; and classifying the joint features based on a support vector machine (SVM) and / or the DNN, and outputting a safety assessment level of the tunnel. Through effective fusion of multiple deep learning models, multi-dimensional data features can be comprehensively considered, and the accuracy and real-time performance of tunnel safety assessment are improved.

The invention relates to the technical field of tunnel safety monitoring, in particular to a strong noise tunnel point cloud monitoring method based on improved RANSAC and dynamic residual, which comprises the following steps: firstly, collecting two-dimensional point cloud data of a cross section of a tunnel, and performing attitude correction through ground baseline fitting to unify a coordinate system; afterwards, de-noising is carried out by adopting a vault-dominated improved RANSAC algorithm, and the algorithm effectively filters out strong noise and retains key lining points through constraint sampling, model geometric constraint and dynamically adjusted residual error threshold values; and performing nonlinear least square complete circle fitting on the denoised point cloud, and accurately extracting circle center and radius parameters. And finally, based on the absolute deviation, the relative deviation, the abrupt change increment and other multi-dimensional indexes of the radius, safety evaluation and early warning are carried out in combination with a standard threshold system. According to the invention, the robustness and precision of tunnel contour monitoring under complex working conditions of strong noise, equipment installation deviation and the like are obviously improved.

The invention relates to the technical field of tunnel safety and emergency management, and discloses a tunnel fire-fighting emergency linkage method and system based on digital twinning, and the method comprises the steps: collecting the multi-modal data of a fire environment through a plurality of sensors, and constructing a global situation understanding model; processing the environment state and the crowd behavior characteristics by adopting a multi-head attention network; dynamically adjusting the attention weight of the crowd feature dimension by applying a situation-enhanced attention mechanism; constructing a psychological environment interaction model, and predicting crowd behavior evolution in different fire scenes; generating a situation-adaptive multi-level evacuation guidance strategy tree; real-time effect evaluation is carried out, and system overall optimization is realized through a digital twinborn model; according to the method, the environment state and the crowd behavior characteristics are processed at the same time through the multi-head attention network, the internal correlation between the environment factors and the crowd behaviors can be understood, and therefore comprehensive and accurate cognition is formed on the tunnel fire scene.

The utility model provides a tunnel inverted arch structure which comprises a corrugated steel plate layer, a secondary lining layer, a frame column layer and a pavement layer which are sequentially arranged from bottom to top, and the corrugated steel plate layer is provided with a grouting hole and an anchor rod hole for a system anchor rod to penetrate through. Foam concrete is injected into an interlayer space between the corrugated steel plate layer and the surrounding rock through the grouting holes to form a foam concrete layer, the system anchor rod comprises an anchoring end and a locking end which are oppositely arranged in the extending direction of the system anchor rod, the anchoring end penetrates through the anchor rod hole to be anchored into the surrounding rock, and the locking end is connected with the corrugated steel plate layer. The secondary lining layer is arranged on the inner wall of the corrugated steel plate layer, the bottom of the frame column layer is pre-buried in the secondary lining layer, and the pavement layer is laid on the top of the frame column layer. According to the novel inverted arch structure, particularly, a traditional inverted arch backfilling layer is arranged to be of a frame layer structure, the use amount of concrete can be greatly reduced, the safety and stability of a tunnel are guaranteed, meanwhile, the material cost and the construction cost are reduced, and economic benefits are improved.

The invention discloses a design method for anti-erosion tunnel parameters. The design method comprises the steps that tunnel environment information and a tunnel safety index range are acquired; determining a catastrophe risk of the tunnel based on the tunnel environment information; determining a tunnel structure parameter range based on the catastrophe risk of the tunnel; determining tunnel structure parameters based on the tunnel structure parameter range; determining tunnel safety indexes based on the tunnel structure parameters; and determining or adjusting tunnel structure parameters based on a comparison result of the tunnel safety index and the tunnel safety index range. According to the design method of the anti-erosion tunnel parameters, blindness and randomness of composite corrosion and erosion surrounding rock tunnel structure parameter values are avoided, the tunnel rigidity and durability are effectively guaranteed, and the later tunnel structure degradation risk is reduced.

The utility model discloses a tunnel safety supporting device which comprises a steel bar net face arranged on the inner wall of a tunnel, a plurality of first anchor rods supporting the steel bar net face, arch frames, second anchor rods forming hoops for the arch frames and clamping plates fixing the adjacent arch frames. The end, used for splicing, of the steel frame is provided with an installation face used for fixed connection, the second anchor rods are installed on the two sides of the steel frame in pairs and anchored on the inner wall of the tunnel in an inclined mode, the second anchor rods are provided with bent parts, and the bent parts are welded to the steel frame. According to the technical scheme, the inclined anchor rods are arranged at multiple positions of the lagging jack to lift and fix the whole, and the clamping plates between the lagging jacks can further improve the rigidity and stability of the lagging jack in the longitudinal direction of the tunnel.

The invention relates to the technical field of highway tunnel lining disease evaluation, and discloses a highway tunnel lining disease dynamic clustering evaluation system, which comprises a data acquisition module used for acquiring multi-dimensional disease data of a tunnel lining and preprocessing the data so as to construct a disease dynamic matrix. And the data analysis module is connected with the data acquisition module, establishes a fuzzy similar matrix among the disease space units based on the disease dynamic matrix, generates a closed similar matrix in combination with a transitive closure algorithm, and further analyzes the closed similar matrix through a dynamic clustering algorithm to obtain a disease clustering result. And the data output module is connected with the data analysis module, constructs a comprehensive evaluation model according to the clustering result and the historical maintenance data, and finally determines and outputs the risk score and the maintenance priority of the tunnel lining disease. According to the invention, tunnel disease identification precision and maintenance resource configuration efficiency are improved, and safe operation of the tunnel is guaranteed.

The invention provides a tunnel blasting vibration monitoring method and system based on image recognition, and relates to the technical field of tunnel safety monitoring, and the method comprises the steps: obtaining a geological parameter set of a tunnel target region and an image sequence of a blasting moment; carrying out fluctuation analysis on geological parameters to obtain vibration characteristic data reflecting rock mass non-uniform characteristics, synchronously carrying out optical flow analysis and region identification processing on an image sequence, respectively generating a displacement vector field and an identification deformation region, carrying out spatial association on the vector field and a micro-deformation region to form vibration field data with rock mass structure characteristics, and carrying out vibration field identification processing on the vibration field data; and coupling with the vibration characteristic data to reconstruct a three-dimensional propagation path, and finally identifying a damage risk area of the tunnel target area based on an energy distribution pattern on the path. According to the method, the damage risk identification precision of the tunnel rock mass under blasting vibration is improved.

The invention discloses a complex environment tunnel safety monitoring and early warning test device which comprises an earth pressure box, channels for simulating excavation are arranged on the two sides of the earth pressure box, jacking devices are arranged on the upper side and the side face of the earth pressure box, the earth pressure box is filled with a test soil body, and an earth pressure sensor and a pore water pressure sensor are arranged in the test soil body. Excavating in the test soil body to form a simulation tunnel, arranging a row of grouting monitoring and reinforcing devices in at least one position direction on the periphery of the simulation tunnel, and distributing the grouting monitoring and reinforcing devices in a zigzag shape through a specific span and a horizontal angle; the grouting monitoring and reinforcing device comprises a split type protection pipe, through holes are formed in pipe sections of the protection pipe, and optical fiber sensors jointly penetrate into all the through holes. The protection pipe is dispersed into a plurality of pipe sections, advance supporting and monitoring of tunnel construction are achieved, and the construction technology is conveniently and reasonably arranged through the test.

A water-rich tunnel permeability dynamic partitioning method based on multi-source data comprises the following steps: acquiring a permeability coefficient, rock compressive strength, an integrity coefficient, RQD and longitudinal wave velocity data of a tunneling area, and constructing a multi-source feature matrix through space-time alignment and standardization processing; dynamically calculating the weight of each index based on an entropy weight method, and adaptively adjusting the contribution degree of the parameter in combination with the geological type; a standard cloud parameter is generated by using a cloud model, the membership degree of real-time data to each penetration grade is calculated through a forward cloud generator, and a final grading result is comprehensively judged; and mapping a grading result to a three-dimensional BIM model to generate a dynamic penetration cloud picture, and triggering a real-time early warning mechanism. According to the method, through multi-source data fusion and dynamic weight distribution, the static and experience dependence of a traditional grading method is broken through, and the complex stratum permeability evaluation precision is remarkably improved; the level boundary fuzziness is quantified by the cloud model, and the risk of misjudgment of a critical interval is avoided; through deep integration of advanced geological forecast data, permeability space prediction of an unexcavated area is achieved, minute-level early warning and grouting parameter intelligent recommendation are combined, the probability of water inrush accidents is effectively reduced, and an intelligent solution is provided for water-rich tunnel safety construction and resource optimization.

The invention provides a tunnel activity measurement method with a bidirectional loading demand, and belongs to the technical field of tunnel activity measurement, and the method comprises the steps: collecting a multi-dimensional force signal and a displacement signal, carrying out the digital processing, building a mechanical coupling tensor matrix, and obtaining a preliminary decoupling force component through a condition number adaptive inversion strategy; tensor network high-order correlation modeling and density matrix reforming swarm optimization are utilized for optimization to obtain an accurate decoupling force component, a simulated annealing particle swarm optimization algorithm is combined for solving a non-convex optimization objective function to obtain real mechanical response parameters, defects are identified through ultrasonic detection, and an influence coefficient matrix is established; a Bayesian inversion algorithm is adopted to remove defect influence to obtain corrected tunnel activity parameters, tunnel safety monitoring is finally realized through time sequence analysis and stress redistribution evaluation, and the technical problem of insufficient measurement precision caused by multi-dimensional force signal coupling interference is solved.

The invention relates to the technical field of tunnel safety, and discloses a safety detection method and system for a large-span multi-arch tunnel, and the method comprises the following steps: a preventive monitoring step: carrying out the dynamic monitoring of a middle rock pillar, a double-hole junction section and a vault region of the multi-arch tunnel through a monitoring device, and collecting the deformation data and stress data of surrounding rock and a structure; a disease detection step: detecting the tunnel lining and the surrounding rock by adopting a mode of combining surface detection and hidden detection to obtain surface disease characteristics and hidden disease characteristics; and a data fusion step: carrying out fusion processing on the deformation data, the stress data, and the surface disease characteristics and the hidden disease characteristics obtained in the disease detection step. The deformation data and the stress data are obtained by dynamically monitoring the middle rock pillar, the double-hole junction section and the arch crown area, and the problem that the tunnel safety state evaluation is not comprehensive due to the fact that a single-dimension monitoring or detection mode is mostly adopted in traditional tunnel safety detection is solved.

The invention discloses a tunnel harmful gas monitoring and early warning method and system based on adit exploration, and relates to the technical field of tunnel safety monitoring, and the method comprises the steps: building a physical three-dimensional model of a tunnel based on tunnel static parameter data of adit exploration as a basic model, and dividing a plurality of voxel grids for the basic model; deploying a monitoring network composed of head nodes and monitoring nodes in the tunnel, establishing a spatial registration relationship between the monitoring network and the basic model, calculating distribution of harmful gas concentration in all voxel grids according to data of the monitoring nodes based on the spatial registration relationship, and generating a regional map data set; and mapping the regional map data set into a basic model, and organizing the plurality of regional maps into a plurality of levels to trigger space early warning in the basic model based on a preset concentration threshold. The tunnel harmful gas monitoring accuracy, the visualization degree and the early warning response timeliness are remarkably improved, and a more reliable technical support is provided for tunnel safety guarantee.

The invention discloses an intelligent tunnel fire identification method and system based on multi-modal sensor fusion, particularly relates to the field of tunnel safety monitoring, and is used for solving the problems of fire detection delay, inaccurate positioning and low response efficiency in an ultra-long tunnel. Fusing and compressing into a global identification quantity delineated abnormal region; then, activating the monorail suspension device by taking the suspected area as a target, and generating a local recognition quantity by a second sensor; forming a corrected recognition set through time-space alignment and deviation correction; on the basis, a fire source positioning result set is extracted, temperature deviation intensity and a smoke propagation rate coefficient are analyzed through machine learning, and a fire development potential index is calculated; and finally, writing back a result to correct a trigger parameter and a travel path, and supporting subsequent fire reuse. The recognition precision is improved, the response time is shortened, and casualty and loss risks are reduced.

The invention discloses a tunnel event-driven multi-mode induction warning control method and system, and relates to the technical field of tunnel safety management. The method comprises the following steps: generating a tunnel global dynamic risk field based on monitoring data acquired by a multi-source sensor in a tunnel; according to the intensity distribution characteristic and the spatial change characteristic of the dynamic risk field, calculating optical flow driving potential energy, and generating the working mode, the basic brightness and the flicker frequency of each induction sign based on the optical flow driving potential energy; when the emergency mode is determined, calculating an optical flow steering vector according to the distribution characteristics of the dynamic risk field and preset emergency exit information, and generating a dynamic optical flow evacuation path pointing to the nearest emergency exit; and calculating a tunnel body efficiency factor according to the tunnel traffic state and the dynamic risk field situation change, and when the tunnel body efficiency factor is smaller than a preset efficiency threshold value, triggering a parameter adjustment mechanism. The tunnel safety and the emergency response efficiency are improved by adjusting an induction sign and an optical flow guide evacuation path and optimizing system parameters in real time.

The present invention discloses a support structure for underpasses with anti-pullout piles and a construction method thereof, which solves the problems of high difficulty and low safety factor in the prior art of removing anti-pullout piles during concealed excavation of existing tunnels and / or buildings. The support structure for underpasses with anti-pullout piles of the present invention comprises a connecting steel pipe that connects the existing building structure and the tunnel segment using a pipe curtain method, wherein a curved beam plate is provided on the side of the tunnel segment corresponding to the connecting steel pipe, and a reinforcing ring beam is provided on the side of the existing building structure corresponding to the connecting steel pipe, one end of the connecting steel pipe passes through the tunnel segment and is connected to the curved beam plate, and the other end passes through the existing building structure and is connected to the reinforcing ring beam and / or the existing building structure; after one side of the existing building structure is connected to the tunnel segment via the connecting steel pipe, the existing anti-pullout pile is removed, and then the other side of the existing building structure is connected to the tunnel segment via the connecting steel pipe. The present invention uses the pipe curtain method to construct connecting steel pipes, and uses the connecting steel pipes to connect the tunnel segments and the internal curved steel beams with the upper existing building structure to form a whole, so that the tunnel segments and the upper structure have a common anti-floating effect, and can safely and efficiently realize the safe construction of tunnels passing under existing buildings.

The invention relates to a tunnel scene-oriented vehicle-tunnel collaborative innovation mode and a safety operation and maintenance management and control system and method thereof. The system comprises a vehicle-tunnel collaborative subsystem, a tunnel safety operation and maintenance and intelligent disaster prevention subsystem and a vehicle-tunnel digital base. The vehicle-tunnel cooperation subsystem is composed of an intelligent vehicle and an intelligent tunnel side subsystem, multi-source sensing fusion, road condition prediction and cooperative decision making are achieved, and a low-delay vehicle-tunnel integrated data flow is provided for the vehicle-tunnel digital base. The tunnel safety operation and maintenance and intelligent disaster prevention subsystem collects the operation state and environment data of electromechanical equipment and uploads the operation state and environment data to the vehicle tunnel digital base. The vehicle and tunnel digital base carries out unified processing, analysis and decision making on vehicle and tunnel data based on a full space-time digital twinborn model and an artificial intelligence algorithm, distributes road resources for an automatic driving vehicle and issues an electromechanical equipment control instruction. According to the system, tunnel traffic safety is improved, operation and maintenance difficulty and cost are reduced, and safe operation and intelligent management of the whole life cycle of the tunnel are supported.