Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

27results about How to "Avoid disaster" patented technology

Gas outburst monitoring and early warning method and system based on improved ConvLSTM model

The invention discloses a gas outburst monitoring and early warning method and system based on an improved ConvLSTM model, and relates to the technical field of gas monitoring, and the key points of the technical scheme are that the method comprises the following steps: constructing a mine gas data set; cleaning the gas data set, converting unstructured data into structured data, and performing data cleaning, denoising and standardization on the structured data; performing high-order derived feature extraction on the preprocessed gas data set; an improved ConvLSTM model is constructed; using a historical gas data set to train the improved ConvLSTM model; identifying a potential gas high-risk area; based on an analysis result of the improved ConvLSTM model, identifying a potential gas outburst ignition risk area; and constructing a monitoring platform. By improving the ConvLSTM model, efficient collection and processing of gas data are achieved, monitoring accuracy and real-time performance are improved, and powerful support is provided for mine safety management.
Owner:XINJIANG UNIVERSITY

Rock mass informatization model establishment method based on laser point cloud

A rock mass informatization model establishment method based on laser point cloud relates to the field of model identification and analysis, and is characterized by comprising the following steps: unmanned aerial vehicle laser data acquisition; establishing an inclination model; re-matching the laser point cloud flight strip; carrying out refined point cloud classification; establishing a triangulation network model; establishing a rock form model; establishing a rock mass information model; establishing a rock mass analysis system; and collapse simulation. The method provided by the embodiment of the invention has the advantages that the unmanned aerial vehicle can be used for carrying the laser radar to carry out close-to-land imitation flight, structures such as collapse, cracks and rockfall of the mountain under the dense forest can be directly measured by using the good vegetation penetrating ability of the laser point cloud, and compared with the original modes such as field investigation and photogrammetry, the method has the advantages that the measurement accuracy is greatly improved. The information obtained by the laser point cloud is more accurate and comprehensive, and the geometric dimension, the steep cliff section shape, the structural surface feature, the lithology, the boundary condition and other features of the dangerous rock mass can be directly confirmed.
Owner:INTERSTELLAR SPACE (TIANJIN) TECH DEV CO LTD

Internet-of-things method and system for monitoring and early warning collapsible loess foundation collapse

The invention discloses an internet-of-things method and system for collapsible loess foundation collapse monitoring and early warning, and relates to the technical field of foundation monitoring. The invention relates to an internet-of-things system for monitoring and early warning collapsible loess foundation collapse. The internet-of-things system comprises a loess foundation partition division module and a loess foundation monitoring and early warning module. According to the method, the minimum monitoring unit is constructed, the rainfall data, the earth surface data and the rainfall prediction evaluation model are combined, and the time-space depth fusion is performed on the rainfall data by using the CNN and the LSTM model, so that the accuracy of rainfall prediction is improved, and accurate monitoring and early warning of the collapsible loess foundation area are realized; the monitoring area can be divided into a plurality of early warning subareas through the depth clustering technology in combination with the rainfall condition and the earth surface data, the early warning accuracy and response speed are improved, disasters caused by collapsible loess foundation collapse are effectively prevented, and fine management of the loess foundation area is achieved.
Owner:JIANGXI HYDROPOWER ENG BUREAU +1

Geotechnical engineering monitoring system based on Internet of Things

The invention discloses a geotechnical engineering monitoring system based on the Internet of Things, and relates to the technical field of geotechnical engineering monitoring, and the system comprises a sensor data collection module which collects geotechnical data in real time based on a geotechnical structure sensor; the data analysis and processing module is used for carrying out real-time analysis on the primarily processed data, judging the stability of the rock-soil structure and carrying out potential disaster prediction; the monitoring and early warning module is used for monitoring the health state of the rock-soil structure in real time; the energy management module is used for supplying power for a long time based on a solar power supply and energy collection technology; and the cloud platform and data visualization module provides remote access, analysis and management functions. The physical state of the rock-soil structure is monitored in real time, data of different sensors are aggregated, key signals are extracted through a time sequence analysis method and the like, the safety coefficient and stability of the rock-soil structure can be accurately evaluated, potential disaster risks are analyzed by establishing a disaster prediction model, early warning is made in advance, and the safety coefficient and stability of the rock-soil structure are improved. And disasters are avoided.
Owner:LIAONING TECHNICAL UNIVERSITY +1

Design method and construction method for earthquake prevention and disaster reduction of T-shaped rigid frame bridge

ActiveCN119475515AProtect operational safetyreduce earthquake forceGeometric CADSustainable transportationArchitectural engineeringSeismic energy
The invention relates to the technical field of disaster prevention and reduction, in particular to a design method and a construction method for earthquake prevention and disaster reduction of a T-shaped rigid frame bridge. According to the design method, a swing energy dissipation and shock absorption device is added in the design process of the T-shaped rigid frame bridge, collaborative optimization is carried out, so that the T-shaped rigid frame bridge does not have plastic damage under the action of an earthquake exceeding fortification intensity; the swing energy dissipation and seismic mitigation device dissipates seismic energy, reduces the seismic energy transmitted from the foundation and the bearing platform to the bridge piers and the main beam, reduces the seismic force of the bridge piers, reduces the displacement and flapping effect of the main beam, and protects the operation safety of the T-shaped rigid frame bridge.
Owner:CHINA RAILWAY 23RD BUREAU GRP SIXTH ENG CO LTD +1

Slope safety assessment method and system based on improved support vector regression

The invention relates to the field of slope safety assessment, in particular to a slope safety assessment method and system based on improved support vector regression. A slope safety assessment system based on improved support vector regression comprises a data acquisition module, a slope safety assessment module, a feature importance assessment module and a decision module. According to the method, the improved support vector regression model is adopted, and the grid search and cross validation methods are combined to optimize the hyper-parameters, so that the safety coefficient of the slope can be predicted more accurately, and the accuracy and reliability of slope safety assessment are improved; through systematic hyper-parameter adjustment and verification, the generalization performance of the model on different data sets is ensured; besides, by calculating importance scores of the features, the method can identify and emphasize factors which have the greatest influence on the slope stability, so that deeper insight is provided for engineers to make more intelligent decisions.
Owner:铜陵有色金属集团股份有限公司 +2

Seepage low-vibration-frequency stress sensitivity testing device and using method

The invention discloses a seepage low-vibration-frequency stress sensitivity testing device and a use method, and belongs to the field of unconventional natural gas exploitation, the seepage low-vibration-frequency stress sensitivity testing device comprises a gas supply system, a stress loading system, a low-vibration-frequency system and a data acquisition system, and the method comprises the steps of test piece placement, stress loading system starting, vacuum degassing, gas adsorption, vibration application and permeability measurement. A stress sensitivity test experiment is carried out on a test piece through the device platform and the method, the gas seepage condition of a low-frequency mechanical vibration coal body stress-seepage coupling field is analyzed through a system, the change rule of the coal body permeability influenced by low-frequency mechanical vibration is obtained, and the stress sensitivity rule is obtained according to related technical indexes and parameters. The influence of the low-frequency mechanical vibration effect and the gas seepage on outburst is discussed, so that outburst prevention measures are better implemented, and economic benefits are brought to mine safety production.
Owner:XIAN UNIV OF SCI & TECH

Precise positioning and tracing method for embankment piping hidden danger in distributed optical fiber online monitoring

This invention provides a method for accurately locating and tracing the source of piping hazards in dams through distributed optical fiber online monitoring, belonging to the field of dam safety monitoring technology. The invention scientifically divides nodes based on optical fiber deployment density and constructs a dynamic sampling mechanism, making data collection more targeted and efficient, avoiding redundant and irrelevant data and missing key information. By comprehensively collecting data through an intelligent sensing system and performing multi-step analysis and processing, it can not only accurately pinpoint the specific location of piping hazards but also deeply analyze the causes of the hazards to achieve source tracing. Finally, it accurately determines the risk level through a preset threshold range. This method forms a complete, scientific, and efficient dam piping hazard monitoring system, providing comprehensive and accurate data support for dam safety status assessment, helping to promptly detect and address potential piping risks, greatly improving dam safety assurance capabilities, and effectively preventing dam disasters caused by piping.
Owner:ANHUI ERQISI TECH CO LTD

A shield tunnel decompression drainage anti-floating comprehensive management system and construction method thereof

The invention discloses a shield tunnel decompression, drainage and anti-floating comprehensive management system and a construction method thereof. The comprehensive management system is installed during the construction period of the shield tunnel, and comprises a bag-enlarged drainage anchor rod, a drainage pump, a water storage tank and a control system; the bag-enlarged drainage anchor rod can effectively prevent the tunnel from floating up by reducing the pressure through drainage, and can also provide sufficient pull-out resistance through the enlarged bag; by adopting annular steel beams and longitudinal steel beams, the pull-out resistance reaction force provided by the bag-enlarged drainage anchor rod is evenly distributed on the pipe segment in the water storage tank area at the bottom of the shield tunnel, effectively preventing the deformation and dislocation or local damage of the pipe segment caused by uneven stress; the bag-enlarged drainage anchor rod and the water storage tank of the invention work together to reduce the pore water pressure in the soil layer at the bottom of the shield tunnel by drainage to reduce the buoyancy of the shield tunnel, and at the same time increase the water storage capacity in the water storage tank to increase the deadweight of the shield tunnel, so as to comprehensively prevent and control the floating of the shield tunnel.
Owner:SUZHOU IND PARK CIVICISM COMMUNAL ENG CONSTR CO LTD +1

Integrated hydraulic system health control method for hydraulic brake

The invention relates to an integrated hydraulic system health control method for a hydraulic brake. The method comprises the steps that real-time working data of a limiting sensor, a pressure sensor, a liquid level sensor, a torque sensor, a temperature sensor and a stroke sensor are collected in real time; collecting the collected data into a data processing center through different channels; the data processing center compares the input data of each channel with the data set by the data processing center; sending out an early warning signal; and the data processing center summarizes the comparison results and respectively sends result instructions to corresponding channels, and synchronizes network intersection and docking and data exchange. According to the integrated hydraulic system health control method for the hydraulic brake, the hydraulic system can be managed autonomously, and early warning is conducted before a fault occurs; when a serious fault exists or a serious fault exists, the machine can be automatically shut down, disasters or secondary disasters are avoided, and the fault maintenance time and cost are reduced; and an embedded system is autonomously designed to be embedded into the equipment without manual guarding.
Owner:JIANGXI HUAWU BRAKE

Compositions for controlling unwanted organisms and methods for controlling same

The present application belongs to the field of biotechnology, and particularly relates to a combination for controlling non-desired organisms and a method for controlling non-desired organisms. The present application controls non-desired organisms, particularly harmful organisms, by sequentially applying (A) a compound and / or a drug having a non-desired organism promoting effect and (B) a compound and / or a drug having a non-desired organism inhibiting effect. The present application provides a combination for controlling non-desired organisms and a method for controlling non-desired organisms, which has a good inhibiting effect on non-desired organisms and has a certain application prospect.
Owner:SHENYANG ENZHI RES INST CO LTD

High-speed railway bad geological slope automatic monitoring method

This invention provides an automated monitoring method for adverse geological slopes along high-speed railways, comprising: acquiring a pre-defined monitoring section of an adverse geological slope along a high-speed railway using GNSS; determining the three-dimensional morphological features and artificial spoil characteristics of the adverse geological features based on the pre-defined monitoring section, wherein the three-dimensional morphological features include geological information and cross-sectional information of the pre-defined monitoring section, and the artificial spoil characteristics include the morphological information of the spoil formed by artificial spoil on the pre-defined monitoring section; determining a pre-defined monitoring cross-section of the pre-defined monitoring section based on the three-dimensional morphological features and the artificial spoil characteristics, wherein the pre-defined monitoring cross-section is the predicted cross-sectional location of a geological disaster occurring on the pre-defined monitoring section; establishing an automated monitoring system for the pre-defined monitoring section based on the pre-defined monitoring cross-section, and monitoring the adverse geological slope of the pre-defined monitoring section according to the automated monitoring system. This invention utilizes GNSS to monitor pre-defined monitoring sections of adverse geological slopes along high-speed railways, preventing disasters and ensuring safety.
Owner:CHINA RAILWAY 19 BUREAU GRP CO LTD

Backfilling mining method for steeply inclined coal seams

The application discloses a filling mining method of steeply inclined coal seam and relates to the technical field of coal mining. The method comprises the following steps: dividing each stage of the steeply inclined coal seam into upper layers, middle layers and lower layers; mining the upper layers, the middle layers and the lower layers; and forming a filling mining method of the steeply inclined coal seam with a sandwich type protection structure and a Z type filling structure during the mining process. The sandwich type protection structure is formed by consolidating a coal pillar, surrounding rock and concrete together, which can effectively protect the coal pillar from damage and maintain the stability of the mined-out area. The Z type filling body structure is formed by combining a reserved coal pillar, lower concrete and an inclined concrete column. The Z type filling body structure has a reserved coal pillar on the top and the bottom, and compared with other filling body structures, the Z type filling body structure formed by combining mining and filling is safer. The filling mining method of the steeply inclined coal seam can maintain the stability of the mined-out area and is beneficial to safe mining.
Owner:SHANDONG HENGCHI MINING EQUIP TECH CO LTD

Dam water level detection alarm device

The invention relates to the technical field of water level detection equipment, in particular to a dam water level detection alarm device which comprises a flood discharge mechanism, and the flood discharge mechanism comprises a box body and is used for discharging flood when a dam floods. A second bevel gear drives a connecting shaft to rotate, so that a shifting rod can be driven to rotate, the shifting rod can abut against a moving plate in a reciprocating mode, the moving plate and a sliding column slide back and forth on a limiting frame, the sliding column drives a sliding rail column at the end to move together, and therefore a sliding seat is driven to slide in the sliding rail column in a reciprocating mode; according to the water level alarm device, the two rotating rods are driven to swing in a reciprocating mode, so that the rotating rods can drive the knocking blocks at the bottom ends and the opposite inner walls of the [-shaped steel plates to knock back and forth to make a sound, and therefore when the water level rises fast, the device can make a sound to warn workers to take other prevention and treatment measures, and the device can automatically give an alarm sound under the condition that electricity is not used; therefore, the water level sensor can still play a role in reminding when the power is cut off or the water level sensor loses effect.
Owner:WUHAN YASIDA SCI & TECH CO LTD

Rock damage and fracture precursor warning method based on infrared thermal image texture characteristics

The present invention discloses a rock damage and fracture precursor warning method based on infrared thermal image texture features, and relates to the field of monitoring and early warning technology for fracture and instability of coal rock mass in mines. The influence of time background noise on the infrared radiation temperature of the bearing rock is eliminated by referring to the rock, and the spatial background noise of the infrared radiation temperature matrix of the bearing rock is eliminated by using the Ostu threshold segmentation and adaptive median filtering method. The instantaneous damage infrared temperature response matrix of the bearing rock is calculated, and the infrared radiation information response characteristics caused by the crack development of the bearing rock are effectively extracted; the grayscale co-occurrence matrix texture eigenvalues ​​of the differential damage infrared temperature response matrix are calculated, and the energy texture feature deviation value is calculated to determine the lower and upper thresholds of the rock damage and fracture precursors. It can accurately and effectively identify the initial precursors and critical precursors of rock damage and destruction, has good engineering application value, and is of great significance to the prevention and control of rock engineering and natural geological disasters.
Owner:CHINA UNIV OF MINING & TECH +1

Coal mine subsidence area fan site selection method

The invention discloses a coal mine subsidence area fan site selection method, and belongs to the technical field of coal mine subsidence area wind power new energy. Aiming at the problems that the existing coal mine subsidence area lacks a scientific and applicable fan site selection technical method and the subsidence stability and the coal seam protection coal pillar influence are not comprehensively considered, the method comprises the following steps: collecting and analyzing mining history and geological data; wind resource measurement, topographic surveying and mapping and resource compliance analysis are carried out in the subsidence area where coal mining is carried out for more than three years, and candidate sites are preliminarily screened; geological exploration is carried out on the candidate sites to evaluate stability; predicting the surface residual deformation of the subsidence area, delineating a residual inclination deformation favorable area, and determining the minimum horizontal safety distance between the fan foundation and the underground coal pillar boundary; and finally determining the fan site by integrating the wind resources, the compliance, the stability, the deformation area and the safety distance. The method provides a scientific site selection basis for wind power construction in the coal mine subsidence area, ensures long-term safe and stable operation of a wind power project, and improves economic benefits.
Owner:CCTEG COAL MINING RES INST

High-pressure water fire extinguishing system for fire in student dormitory

ActiveCN222641127Uavoid disasterFire rescueGlass ballFire - disasters
The utility model relates to the technical field of fire fighting, in particular to a high-pressure water fire extinguishing system for a student dormitory fire disaster. The spraying container is of a cylindrical structure, a piston is arranged in the spraying container, one end of the spraying container is communicated with a fire-fighting pipeline, and the other end of the spraying container is provided with a plugging structure; the agent cavity bag is made of a flexible material, internally provided with a fire extinguishing agent and arranged in the spraying container; the medicament cavity bag is provided with a first nozzle, and the first nozzle is arranged on the outer side of the spraying container; the fire extinguishing agent adopts a non-conductive liquid fire extinguishing agent, and the plugging structure is used for plugging the first nozzle; wherein the blocking structure is provided with a temperature sensing glass ball, after the temperature sensing glass ball is broken, blocking of the first nozzle by the blocking structure is relieved, and the fire fighting water pushes the piston and extrudes the agent cavity bag, so that the fire extinguishing agent is sprayed out from the first nozzle. The fire extinguishing device can extinguish initial fire caused by short circuit of the electric appliance in the first time, and avoids disasters caused by flame expansion.
Owner:SICHUAN VOCATIONAL COLLEGE OF SICHUAN

Slope protection anchoring part for providing real-time data feedback for intelligent construction site system

A slope protection anchoring part for providing real-time data feedback for an intelligent construction site system comprises at least one slope protection anchoring part, the slope protection anchoring part comprises a rod part body used for being anchored and fixed into a slope protection soil body, the rod part body comprises an underground part used for being buried in soil and an overground part located above the underground soil part, and a cavity is formed in the underground part; the soil body displacement monitor is arranged in the cavity; the data signal collector is used for collecting data signals of the soil displacement monitor, and the data signal collector is arranged on the overground part and electrically connected with the soil displacement monitor; the data signal emitter is used for transmitting the data collected by the data signal collector to the intelligent construction site system, and the data signal emitter is arranged on the overground part and electrically connected with the data signal collector. The soil body displacement monitoring device and the water level monitoring device are arranged on the rod piece main body of the anchoring piece, and data monitored by the monitoring devices are transmitted into an intelligent work body system, so that internal activities of a slope protection soil body are accurately monitored in real time, hidden dangers in the soil body are found in time, and disasters of the slope soil body are prevented.
Owner:SOUTHERN CONSTR CO LTD OF CHINA CONSTR EIGHTH ENG DIV

Secondary battery separator, method for manufacturing the same, and use thereof

PendingCN122456114APrevent thermal oxidative decompositionIntegrity guaranteedElectrical batteryStructural engineering
The application discloses a secondary battery diaphragm and a preparation method and application thereof. The secondary battery diaphragm comprises a base film and a functional coating. The functional coating comprises a self-supporting skeleton material, inorganic heat-resistant particles and microencapsulated high-temperature response agents. The glass transition temperature of the self-supporting skeleton material is greater than or equal to 250 DEG C. The microencapsulated high-temperature response agents release reducing substances and form an anti-oxidation chemical protection layer when reaching a response temperature. The functional coating is at least partially embedded in the inside of the base film. Therefore, when the diaphragm thermal runaway temperature reaches the melting point of the base film, the self-supporting skeleton material can independently take over the diaphragm function, and the flow of the base film is limited to maintain the integrity of the size and structure of the diaphragm, thereby solving the timing blind area problem caused by the mismatch between the response temperature of the existing flame-retardant diaphragm and the failure temperature of the base film. With the increase of the temperature, the microencapsulated high-temperature response agents can be autonomously triggered to break and release the internal components to form a chemical protection layer, thereby realizing a complete protection chain from size stability to chemical isolation.
Owner:SHENZHEN ZHONGXING NEW MATERIAL TECH CO LTD

Beehive for pollination of fruits and vegetables in greenhouse

The utility model discloses a beehive for pollinating fruits and vegetables in a greenhouse, which comprises a bottom plate, the top of the bottom plate is in contact with a beehive, four uniformly distributed support rods are fixedly connected to the top of the bottom plate and positioned on the outer side of the beehive, the tops of the support rods are fixedly connected with a top plate, the inner side of the top plate is fixedly connected with a bracket, and the bracket is fixedly connected with a plurality of support rods. The top of the support is fixedly connected with a fixing cylinder, the top of the fixing cylinder is in contact with a fixing block, and the top of the fixing block is fixedly connected with a mounting plate. Through the effect of designing the mounting plate, the mounting plate can be mounted on the ceiling of a greenhouse, the beehive can be hoisted, mounted and used, rats, ants and other disasters can be effectively avoided, the connecting rod can slide relative to the fixing cylinder through the sliding connection of the connecting rod and the fixing cylinder, the working use height of the beehive can be adjusted, and the beehive is convenient to use. The use effect of the beehive is further improved.
Owner:YUNNAN LAFENG BIOTECHNOLOGY DEV CO LTD

Anchor net integrated mine surrounding rock disaster prevention and control method capable of being folded and contracted

The invention discloses a foldable and retractable anchor net integrated mine surrounding rock disaster prevention and control method, and belongs to the technical field of safety prevention and control and monitoring of mining industry and geotechnical engineering. The method is characterized by comprising the following steps that a, anchoring holes (8) are formed in the surface of a rock wall (6) through operation; b, a foldable anchor net mechanism is fixed to the surface of the rock wall (6); c, arranging a sensor for monitoring displacement information and spatial change of the rock wall (6); d, performing mode division on the state of the rock wall (6); and e, taking corresponding measures according to the current mode of the rock wall (6). According to the foldable and retractable anchor net integrated mine surrounding rock disaster prevention and control method, an existing anchor net mechanism is utilized, anchor nets are combined into a whole to form an anchor net integrated structure, and the displacement and the space change of the surrounding rock are monitored while the surrounding rock is protected. And the anchor net mechanism is designed into a foldable structure, so that the storage and the transportation are convenient.
Owner:SHANDONG UNIV OF TECH

Coal mine deep displacement monitoring device

The invention relates to the technical field of coal mining monitoring, in particular to a coal mine deep displacement monitoring device which comprises a bottom plate, a jacking component, a box body, an adjusting component and a monitoring component, by arranging a height-adjustable monitoring structure, rock mass side walls of different depths can be monitored at one monitoring point, and the monitoring accuracy is improved. Meanwhile, after the monitoring height is determined, the purpose of multi-point simultaneous monitoring can be achieved, the monitoring efficiency is improved, the comprehensiveness of displacement of the rock mass side wall at a monitoring point can be embodied, rapid response is facilitated, meanwhile, after the rock mass side wall displaces, the rock mass side wall can be supported in an abutting mode through the arranged side blocking structure, further collapse is avoided, and the rock mass safety is improved. And certain emergency disposal time is won for workers, so that the occurrence of disasters is avoided.
Owner:TIAN ZE ZHI LIAN KE JI GU FEN GONG SI

A method for monitoring and analyzing siltation in drainage pipe networks

The present invention discloses a method for monitoring and analyzing siltation of drainage pipe networks, which relates to the field of siltation monitoring and analysis, including monitoring the vertical exchange flow data from a two-dimensional surface model to a one-dimensional underground pipe network model; rasterizing the positions where the vertical exchange flow is lower than the mean; connecting the grids to form a closed area, and monitoring the water flow exchange in the closed area in the horizontal direction; monitoring whether the direction of the water flow exchange of surface water in the horizontal direction along the closed area is toward the outside, and monitoring whether the direction of the water flow exchange of the underground pipe network in the horizontal direction along the closed area is toward the inside; if both are true, the closed area is judged to be a waterlogged community, and a warning message is issued for on-site investigation. The present invention uses rasterization processing to judge and screen out missed waterlogged community areas, prevent the occurrence of disasters, improve the drainage capacity and waterlogging prevention level of the city, and ensure the safety and convenience of community residents.
Owner:CHENGDU BIG DATA IND TECH RES INST CO LTD

Emergency double-slurry plugging body device and flowing water plugging method

The invention belongs to the field of water inrush treatment, and particularly provides an emergency double-slurry plugging body device and a flowing water plugging method.The emergency double-slurry plugging body device comprises a hollow anchor rod, a plurality of grouting holes are formed in the pipe wall of the hollow anchor rod, the tail end of the hollow anchor rod is connected with a first elastic capsule, and the tail of the first elastic capsule is provided with a capsule tip communicated with the first elastic capsule; the tail end of the capsule is used for being connected with a leaking stoppage slurry grouting pipeline, a second elastic capsule is arranged in the first elastic capsule, a capsule tail pipe communicated with the second elastic capsule is arranged at the tail end of the second elastic capsule, the first elastic capsule is provided with a through hole allowing the capsule tail pipe to penetrate through, the capsule tail pipe is used for being connected with a water glass grouting pipeline, and the front end of the second elastic capsule is connected with a grouting pipe. The grouting pipe is arranged along the outer side of the hollow anchor rod and extends out of the first elastic capsule, the front end of the grouting pipe is closed, and a plurality of small holes are formed in the pipe wall. According to the device and the method, double grout is injected, a block is rapidly formed for water plugging, and fixed-point plugging of a water inrush point is achieved.
Owner:CHINA THREE GORGES UNIV

Structure and method for detecting perpendicularity of formed hole of cast-in-place pile

The invention discloses a cast-in-place pile pore-forming perpendicularity detection structure and method.The structure comprises a bottom supporting piece, a measuring piece, a supporting assembly, a stay wire, a detector and a wire drawing device, the bottom supporting piece is connected with the supporting assembly, the measuring piece is connected with the supporting assembly through the stay wire, one end of the stay wire is connected with the wire drawing device, and the other end of the stay wire is connected with the detector; the detector and the wire drawing device are arranged on the supporting assembly. The structure is simple, the bottom supporting piece, the measuring piece, the supporting assembly and the like can be made of waste materials of a construction site, and the utilization rate of the waste materials is increased. The descending of the measuring piece is limited through the stay wire and the wire drawing device, and when the stay wire handle pulls the measuring circular ring upwards through the stay wire, whether the perpendicularity of the cast-in-place pile hole meets the requirement or not is judged by judging the readings of the detectors on the inclined strut A and the inclined strut B. By comparing the readings before and after the detector, the detection structure can accurately judge the perpendicularity of the formed hole, reduce engineering defects and avoid disasters.
Owner:CHINA WATER RESOURCES & HYDROPOWER CONSTR ENG CONSULTING GUIYANG CO LTD +2

A slope stability verification method combining the Swedish circular arc method and monitoring data

This invention is a slope stability verification method combining the Swedish circular arc method with monitoring data. Specifically, it involves: reviewing geological survey data of the target slope to obtain initial soil and rock strength parameters and slope angle; installing deformation sensors on the slope surface and underground to acquire real-time slope deformation data; identifying the potential circular arc slip surface of the slope using the three points with the largest deformation; dividing the soil within the potential circular arc slip surface into equal parts of fixed width; and directly calculating the center height and vertical angle of the i-th soil strip using a geometric analytical method based on the geometric parameters of the potential circular arc slip surface and the slope angle; and performing limit equilibrium stability calculations based on the initial soil and rock strength parameters, the calculated soil strip height, and the vertical angle to obtain the stability coefficient of the potential circular arc slip surface, thus verifying the slope stability. This invention not only provides a scientific basis for slope safety management but also makes preventative maintenance and precise management possible, effectively preventing disasters.
Owner:CHINA CONSTRUCTION SIXTH ENGINEERING DIVISION CO LTD

Method for realizing UDP port proxy of dual-mode base station based on eBPF

The invention discloses a method for realizing dual-mode base station UDP (User Datagram Protocol) port proxy based on an eBPF (evolved Broadband Power Function), which comprises the following steps that: an eBPF program is loaded to a data link layer of a TCP / IP (Transmission Control Protocol / Internet Protocol) protocol stack by a TC (Train Control) command, the eBPF program is used for proxy of a 2152 port of a 4G UDP by a 2153 port, and the eBPF program is called when messages received by a network card pass through the data link layer; and the eBPF program is loaded to a 4G post-transmission network port eth1. According to the method, the UDP port of the 5G process or the 4G process is agented through the eBPF technology, and whether the 5G process or the 4G process is agented can be configured through the configuration file. And a kernel module is not used, so that the risk of service interruption caused by kernel crash is avoided, and compared with the prior art, the forwarding rate of message processing is greatly improved. In addition, the eBPF program has the advantage that multiple positions can be operated at one time of compiling, the compiled eBPF program can be operated in multiple kernel mode versions, and the time cost of a module adaptive operation system is greatly reduced.
Owner:深圳市佳贤通信科技股份有限公司