72 results about "Mudflow" patented technology

A debris flow discharge channel, comprising: a main channel through which the debris flow passes; a separation screen detachably connected to the main channel, the separation screen separating the main channel into an upper discharge channel and a lower discharge channel; a first accumulation area in communication with the upper discharge channel; a buffer channel in communication with the lower discharge channel, the buffer channel being provided with transverse energy dissipation ridges and longitudinal flow guide ridges; and a second accumulation area provided behind the buffer channel. The separation screen separates coarse and fine particles, which, in terms of service life, prevents the downstream discharge channel from being damaged by the huge impact force of coarse particles or being blocked by the accumulation, effectively prolongs the service life of the discharge channel, and, in terms of later maintenance, the separation of coarse and fine particles facilitates the maintenance and repair of the downstream main channel, thereby effectively reducing the maintenance cost in the later period.

This invention provides a multi-model fusion method, device, electronic device, and system for debris flow early warning. The method includes: collecting geographical and geological data, real-time rainfall, runoff, and auxiliary monitoring data; fusing a shallow flow numerical model, a moving least squares machine learning model, and a generalized regression neural network model, and obtaining a comprehensive runoff prediction through weighted least squares calculation; constructing critical runoff indicators based on the safety requirements of disaster-bearing bodies such as roadbeds, retaining walls, and culverts, and inversely calculating critical rainfall thresholds, then making differentiated adjustments based on the average gradient of the gully; generating a debris flow early warning report by comparing real-time predictions with thresholds, achieving final graded and zoned early warning for the warning area. This invention improves the accuracy and engineering relevance of early warnings by integrating physical mechanisms and data patterns, achieving refined early warning from "whether it will occur" to "when, where, and what the impact will be," while reducing the error of a single model and adapting to different terrains and disaster-bearing bodies along highways.

This application discloses a dynamic decision-making method and system for flash floods and debris flows based on multi-agent and LLM (Limited Language Model), belonging to the field of emergency management and intelligent decision-making technology. This method constructs an intelligent decision-making architecture based on a large model and multi-agent collaboration. It solves the execution challenges of complex disaster tasks through the division of labor and cooperation among multiple agents, and overcomes the decision-making limitations of traditional systems by leveraging the deep reasoning capabilities of a large language model. Specifically, the multi-agent collaborative framework decomposes disaster prevention and control decisions into sub-tasks such as intent parsing, contingency plan retrieval, spatial analysis, data acquisition, and analysis and prediction. Each functional agent focuses on its area of ​​expertise, improving the efficiency and accuracy of task execution. The agent communication protocol ensures efficient information interaction and collaborative scheduling between modules, realizing fully automated processing from task input to data output.

This invention relates to the field of debris flow monitoring and prevention, and specifically to a debris flow prevention device and early warning method with integrated monitoring. The invention includes a force plate, baffles, rigid piles, and an intelligent early warning module. It uses a three-component mechanical sensor and a pore water pressure sensor to monitor in real time, capturing the shear stress, normal stress, and pore water pressure at the bottom of the debris flow, and analyzing the differences in internal stress distribution. A single rigid pile and two baffles constitute a protective unit, deployed along the channel. The cooperation between the force plate and the baffles forms a linkage between monitoring and prevention. When the force plate detects the passage of debris flow, the baffles move upstream to intercept it; when the force plate detects a decrease in debris flow flow, the baffle opening turns downstream for self-cleaning. The intelligent early warning module integrates multi-source sensor data based on 5G communication, and triggers a three-level graded early warning through theoretical quantitative analysis such as corrected Froude numbers and corrected impact loads. This invention achieves coordinated flow perception, graded early warning, and dynamic protection, improving prevention efficiency and early warning accuracy.

The utility model discloses a kind of collapse pit dewatering aggregation simulation test devices, it is related to testing, measurement technical field.It includes collapse pit simulation system, dewatering simulation system and information acquisition system.Collapse pit simulation system adopts box without top cover, and the collapse pit of different working conditions, filling material can be constructed, so different filling, collapse pit gradient can be simulated test;Dewatering simulation system can spray water body to collapse pit simulation system, and dewatering simulation system can control dewatering height, dewatering area, dewatering intensity and dewatering time by lifting frame, dewatering nozzle, adjustable transformer, timing socket, so that the collapse pit of multiple working conditions can be carried out dewatering aggregation similar simulation test;Information acquisition system obtains the moisture content, pressure and temperature etc. Information of inside filling of collapse pit, it is favorable to ascertain the aggregation behavior of collapse pit dewatering under different working conditions, provide basis for collapse pit ponding management, thereby reduce underground debris flow risk, guarantee mine safety and efficient production.

To provide a circuit board unit that detects sudden natural disasters such as rockfalls, rockfalls, landslides, mudslides, and debris flows in real time, and a disaster detection device equipped with this circuit board unit. [Solution] The substrate unit 20 includes a circuit board 25 on which an electronic circuit is formed, a switch 25d that opens and closes the electronic circuit by the displacement of an external switch operating part, a case body 21 having a substrate housing part that encloses and houses the circuit board 25, and a cover body 22 that closes the substrate housing part of the case body 21. The disaster detection device includes the substrate unit, a main body device in which the substrate unit is housed and which is provided with a switch operating part that displaces in conjunction with the detection body when a predetermined amount of kinetic energy or more is applied to the detection body and it is displaced and / or deformed, and a detection body supported on the ground by the main body device.

The present application provides a kind of debris flow early warning and adaptive protection system, it is related to disaster warning technical field, system includes: drainage basin stereoscopic monitoring network, for obtaining the multi-source monitoring data of monitoring area;Early warning and analysis platform, for early warning analysis according to the multi-source monitoring data, generates early warning level;Also for when the early warning level is action level, generate debris flow prediction scale parameter, and according to the debris flow prediction scale parameter and the operating state of the monitoring area, simulation is carried out, generates debris flow influence simulation parameter;Adaptive protection decision and execution subsystem, for generating and executing protection strategy according to protection plan base and the debris flow influence simulation parameter, wherein, the protection plan base is based on the construction of special research results.The present application can comprehensively collect the multi-dimensional monitoring information of debris flow prevention and control area, simulation result is accurate, also solves the pain point that present technical special research results are idle, protection decision lacks quantitative basis and is passive response.

The utility model relates to a novel assembly type debris flow diversion channel belongs to debris flow protection technical field. In view to the long construction period of traditional integral cast-in-place diversion channel, the structural fracture caused by the collapse of the channel surface easily, the defect of high maintenance cost, the design innovation adopts the modular assembly structure to replace the integral structure. The diversion channel is composed of prefabricated left hook plate, right clamping plate, rubber waterproof cushion block and chemical expansion bolt, the left hook plate and right clamping plate end design have the concave-convex hook clamping structure of mutual cooperation, and are fastened by chemical expansion bolt after filling gap through rubber waterproof cushion block, realize the quick assembly and reliable connection between modules, form inverted trapezoidal groove body module. When construction, along the channel module assembly, can adapt to irregular terrain, and any module damage can be independently disassembled and replaced, completely solve the high maintenance cost of traditional cast-in-place structure damage.

A device and a method for debris flow abrasion testing and a method for abrasion quantity evaluation of debris flow prevention and control engineering are provided. The device for debris flow abrasion testing of the present disclosure is an improvement of its own patented product, and a testing block box assembly includes a testing block box, an outer side of the box is apertured and centered with an annular member. The annular member is screwed with a fixing member and a placeholder member. The fixing member fixes the testing block and the placeholder member blocks a sampling operation hole to ensure that a bottom of the box is leveled. The testing block box assembly includes a stop member or a disassembling member.

A slope debris flow interception and protection diversion system includes a base, interception plates, and a mud-water separation device. The base includes a front baffle, a rear baffle, and a diversion channel. The top of the front baffle is higher than the rear interception plate, and a support column is provided between the tops of the two. The diversion channel is located below the support column. Several base columns are provided at the lower ends of both the front and rear interception plates. The base columns are buried at least 50 cm below the ground and are made of reinforced concrete. The interception plate is installed on the front baffle, and the mud-water separation device is installed on the support columns. The advantage is that the interception plate uses a transparent PC sheet at least 50 mm thick. On the one hand, it can effectively intercept and protect against debris flows; on the other hand, under normal circumstances, the transparent interception plate can avoid obstructing the view of the mountain, preserving the mountain scenery.

This invention provides a method and system for early warning of debris flow initiation based on dynamic weighting of multiple influencing parameters, belonging to the field of geological disaster prevention and early warning technology. The method includes: constructing a set of multiple influencing parameters by acquiring source conditions, topographic features, and real-time rainfall parameters; constructing an intrinsic weighting function based on the initiation physical mechanism to calculate the intrinsic weights of the source and topographic parameters; adjusting the intrinsic weights using a dynamic correction function with rainfall intensity or cumulative rainfall as input to obtain dynamic weights; establishing a critical function coupling the dynamic weights and critical conditions to calculate the debris flow initiation critical index, and issuing an early warning when the threshold is exceeded. This solves the problem that existing debris flow early warning methods are unable to simultaneously integrate physical mechanisms and dynamic weight adjustment, and accurately reflect the critical state of debris flow initiation under the coupling effect of multiple factors.

The utility model relates to a novel debris flow protection net belongs to the technical field of protection net. Including wire mesh and the anchor rod of setting at wire mesh both ends, through the anchor rod fixed on the side slope of river course, the both ends of wire mesh set unloading buckle, the unloading buckle extends from the upside of wire mesh to downside, wire mesh surface sets up several horizontal steel wire ropes, and sets up the protection section steel on the horizontal steel wire rope surface fixedly, wire mesh middle part sets up several support columns, support column is fixed in the ground foundation below, and support column uses the cable-stayed steel wire rope and reinforces, horizontal steel wire rope same support column fixed connection. The utility model relates to a novel debris flow protection net, through setting unloading buckle at wire mesh both ends, setting the multiple unloading structure such as force reduction ring on steel wire rope, to improve the bearing capacity of protection net, plays the good protection effect to the debris flow.

This application provides a method and system for early debris flow identification based on SAR technology combined with a 3D model. Interferometric SAR data is selected as the wide-area coverage data for the target area, and fully polarimetric SAR data is selected as the local refined data for the target area. Phase unwrapping is performed on the wide-area coverage data to generate a wide-area digital elevation model (DEM). Polarization decomposition and phase optimization are performed on the local refined data to generate a local DEM. The wide-area DEM and the local DEM are fused to obtain a hybrid DEM. Based on the hybrid DEM, topographic factors are extracted to generate DEM spatial data to support debris flow susceptibility analysis. Early debris flow identification is performed based on historical debris flow data, historical precipitation data, regional soil moisture content, and DEM spatial data, yielding identification results. A differential monitoring and early warning system based on SAR technology and a 3D model is established. Remote sensing data generated by SAR technology is applied to debris flow disaster identification, improving the early identification capability of debris flow hazards and conducting debris flow hazard deformation prediction analysis.

This application discloses a method, system, equipment, medium, and product for assessing the susceptibility of single-gully debris flows, relating to the fields of geological disaster prevention and remote sensing application technology. The method includes: acquiring remote sensing images and LiDAR data of a target watershed, and identifying and interpreting gully and slope debris sources within the target watershed; extracting a first feature parameter for each interpreted slope debris source and a second feature parameter for each interpreted gully debris source; calculating the slope debris source contribution based on the first feature parameter and the gully debris source contribution based on the second feature parameter; substituting the slope and gully debris source contributions into a debris flow susceptibility probability calculation model to calculate a debris flow susceptibility probability value; and classifying debris flow gullies in the target watershed into different susceptibility levels based on the debris flow susceptibility probability value to assess the susceptibility of single-gully debris flows. This application enables refined and categorized debris flow susceptibility assessment.

This invention discloses a method for calculating the reservoir capacity and iteratively optimizing the dam height of debris flow dams based on point cloud and TIN models, belonging to the field of debris flow disaster prevention and control engineering technology. First, original ground point cloud data of the dam site area is acquired and preprocessed. TIN models of the original gully and the post-dam siltation surface are constructed separately. The design reservoir capacity is calculated using the triangular prism volume integral method, and the siltation line can be automatically generated and the siltation visualization results are output. Simultaneously, with accurate reservoir capacity as the core indicator, a verification mechanism between the reservoir capacity and the required reservoir capacity is established. The dam height is iteratively optimized by adjusting the elevation of the dam crest centerline until the reservoir capacity meets the requirements. This invention achieves rapid and high-precision calculation of the design reservoir capacity, eliminating reliance on manual operation. It also constructs a standardized reservoir capacity-dam height iterative process, achieving precise matching between dam height and reservoir capacity, balancing engineering disaster control effectiveness and economy. The results are compatible with general engineering formats and applicable to complex gully terrain, providing reliable technical support for the precise design of dams.

The application relates to the field of debris flow, in particular to a debris flow-prone-section protection structure, which comprises two stand columns, a protection net is arranged between the two stand columns, the protection net is composed of a plurality of elastic ropes, each two adjacent elastic ropes are provided with a circular ring node, the stand columns are provided with connecting parts for connecting the elastic ropes, and the connecting parts are further provided with pins for fixing the elastic ropes, the protection structure further comprises a reinforcing protection mechanism, the reinforcing protection mechanism comprises a plurality of buffer pieces, the number of the buffer pieces is equal to the number of rows of the circular ring nodes on the protection net, the reinforcing protection mechanism further comprises a plurality of supporting pieces, and the number of the supporting pieces is equal to the number of the buffer pieces; through the double protection of the protection net and the protection curtain and the action of the buffer pieces and the supporting pieces, the debris flow is blocked, the protection effect is improved, and the stability of the protection net and the protection curtain in resisting the debris flow is improved.

This utility model discloses a flood and debris flow geological disaster prevention device, including a base frame, on which a support structure is provided. The support structure includes a fixed seat, a column, a support frame, insert rods, and support bars. The fixed seat is provided on the base frame, the column is provided on the base frame, the support frame is provided on the column, the insert rods are evenly distributed at the bottom of the base frame, and the support bars are provided at one end of the support frame. An adjustment component is provided on the support frame, the adjustment component includes a support plate, a fixed plate, and a threaded rod. The support plate is provided on the support frame, the fixed plate is detachably mounted on the support plate, and the threaded rod is threadedly connected between the fixed plate and the support plate, thereby solving the technical problem mentioned in the background art that existing devices cannot effectively and conveniently provide support for protective devices during use.

The application discloses a kind of dilute debris flow and rainwater collaborative drainage channel and application thereof, import section, steep slope energy dissipation section and outlet section are all full-lining trapezoidal cross-section channel;The bottom width of inlet horn mouth gradually narrows along the flow direction of debris flow, the sidewall depth gradually increases along the flow direction of debris flow;Steep slope energy dissipation section is connected after import standard trapezoidal section, the bottom width is consistent with the bottom width of import standard trapezoidal section;The bottom of steep slope energy dissipation section is arranged energy dissipation ladder along the flow direction;Outlet section is divided into outlet standard trapezoidal section and outlet horn mouth arranged after, the bottom width of outlet horn mouth gradually narrows along the flow direction, the sidewall depth gradually decreases along the flow direction;The bottom width of wide end of inlet horn mouth, the bottom width of outlet standard trapezoidal section and the bottom width of steep slope energy dissipation section are consistent;Outlet horn mouth end meets main river channel with acute angle;Main river bed is provided with riprap bottom protection and the end of outlet horn mouth is connected.

This utility model belongs to the field of geological disaster prevention and control technology, and discloses a flood and debris flow disaster management device, including a stepped protective dam. A drive motor is installed on one side inside the stepped protective dam. A threaded rod is fixedly installed at the output end of the drive motor. A gate is threadedly connected to the surface of the threaded rod. Trapezoidal buffer blocks are fixedly installed on both sides of the top surface of the stepped protective dam. A fixing strip is fixedly installed at the bottom of the stepped protective dam, and connecting blocks are fixedly installed at equal intervals on one side of the fixing strip. Through the arrangement of the stepped protective dam, drive motor, and gate, during the occurrence of floods and debris flows, when engineers need to divert and buffer the flow, they can connect the drive motor to power, causing the threaded rod to rotate. Subsequently, the threaded rod drives the gate to slowly slide upwards, thus diverting the flood and debris flow, thereby facilitating the management of floods and debris flows.

To provide a switch mechanism that can instantly detect and process sudden natural disasters such as rockfalls, rockslides, landslides, mudslides, and debris flows in real time, and a disaster detection device equipped with this switch mechanism. [Solution] The switch mechanism has magnetic bodies 45, 66 that hold the moving magnet 24 in a position where the normally open magnetic sensor 25d, which opens and closes an electronic circuit by an external magnetic field from the moving magnet 24, is open, and a magnet guide part 22c that guides the movement of the moving magnet 24 toward the vicinity of the magnetic sensor 25d when the magnetic bodies 45, 66 are displaced. The disaster detection device has a main body 2 that houses the switch mechanism, and a detection body 3 that is supported on the ground by the main body. When a predetermined amount of kinetic energy E is applied to the detection body 3, the magnetic bodies 45, 66 are displaced to a position away from the moving magnet 24, the moving magnet 24 is guided by the magnet guide part 22c, the magnetic sensor 25d closes, and the electronic circuit is closed.

This invention discloses a method and system for monitoring and early warning of debris flow ground motion, belonging to the field of geological disaster monitoring and early warning technology. The method includes: synchronously slicing continuous seismic records according to a unified absolute time axis, using waveform pairs from multiple stations as basic input units; independently encoding the signals from each station using a time-frequency hybrid encoder (STFT+LSTM-Transformer); constructing a spatiotemporal cost volume using a Lag-UNet module to achieve soft alignment of cross-station feature spaces; modeling four sets of feature interaction quantities using a causal TCN and outputting the probability of debris flow occurrence through attention pooling; and continuously sampling negative samples with replacement from a large-scale noise pool during the training phase using a dynamic sampling strategy.

This invention discloses a method for identifying debris flow basins with different initiation types at a regional scale, comprising the following steps: S1, extracting watershed units; S2, based on the watershed units, determining potential debris flow basins within each watershed unit; S3, obtaining the average source activity value M of all grids contained in each potential debris flow basin, and classifying the potential debris flow basins into hydraulic debris flow basins and a first unidentified basin based on the value of M; S4, performing slope source movement capacity analysis on the first unidentified basin, determining it as either a soil-based debris flow basin or a second unidentified basin; S5, performing source activity analysis in the channel of the second unidentified basin, determining it as either a soil-based debris flow basin or a hydraulic debris flow basin. This invention identifies debris flow basins with different initiation types at a regional scale, providing a possibility for more accurately improving the assessment and early warning function of debris flow susceptibility at the regional scale.

This utility model belongs to the field of geological disaster prevention technology, and in particular, a debris flow protection device for geological disaster prevention. It includes a slope protection structure, with an installation plate on the top surface of the slope protection. One side of the installation plate is connected to the top surface of the slope protection via a connecting rod. The side of the installation plate away from the slope protection is fixed to the ground by a fixed column. A support frame is vertically installed on the side of the installation plate closest to the slope protection. A guide support plate is provided between the top of the support frame and the end of the installation plate away from the slope protection. A filter assembly is fixed between the bottom surface of the side of the installation plate closest to the slope protection and the top surface of the slope protection, allowing the falling debris flow to pass over the entire protection device, preventing road flooding and affecting normal traffic, and ensuring the safety of people or vehicles on the road during a debris flow.

The present application belongs to the technical field of geological disaster monitoring, and discloses a debris flow velocity inversion method based on an optical flow model, and proposes an integrated optical flow framework for simultaneously inverting the surface velocity field and the front velocity of the debris flow. Through three sets of large-scale flume experiments, the method provides a robust and accurate tool for characterizing complex flow kinematics. By simultaneously measuring the surface velocity field and the front velocity, the main limitations of existing computer vision techniques are overcome, and a more comprehensive understanding of the flow process is achieved. The core scientific contribution lies in the new physical insights obtained through synchronous measurement: the research results provide direct and strong observational evidence, which links the high-frequency velocity pulses at the front to the secondary surge dynamics propagating from the tail. This discovery is crucial for understanding internal momentum transfer and energy dissipation. At the methodological level, the framework is superior to the benchmark deep learning tracker in terms of reproducing flow velocity statistical characteristics and ensuring numerical accuracy.