7results about How to "Avoid disaster" patented technology

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.

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.

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.

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.

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.

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.

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.