High-speed railway foundation stability early warning method in strong mine earthquake area

Abstract

The invention discloses an early warning method for the stability of a high-speed railway foundation in a strong mining earthquake area. First, the main fault zone that affects the stability of the high-speed railway foundation is determined; Observing instruments: By observing the mine earthquake activity, it is judged according to the stress mutation of the stress sensor whether it will cause serious safety hazards to the high-speed railway foundation passing through the area. The invention determines the deformation azimuth and the relationship with the strong mine earthquake by observing the fault zone, and realizes the early warning of the potential safety hazard of the high-speed rail foundation according to the deformation trend.

Description

technical field [0001] The invention belongs to high-speed railway foundation safety and earthquake monitoring technology. Background technique [0002] At present, many high-speed railways pass near some underground mining areas (including coal mines, non-coal mines, etc., and this problem also exists in areas with unfavorable geological bodies). These areas are often affected by historical geological movements to form fault zone structures. With the large-scale deep mining of coal resources, the mining boundaries are complex and changeable, and high energy is accumulated in some areas due to insufficient mining, especially the energy accumulated in hard and complete rock formations. Over time, or when encountering strong disturbances , has the conditions for strong mine earthquakes to occur. For old mines, large-energy mining earthquakes are prone to occur in some mining areas that have been suspended, and in the middle of the goaf of the mine. Once these mine earthquake...

AI Technical Summary

Problems solved by technology

Once these mine earthquakes spread to the fault zone leading to the surface, coupled with the long-term vibration of the high-speed railway, it will induce the activation movement of the fault zone, which will cause damage to the ground construction facilities, especially the high-speed railway foundation passing through this area will cause serious safety hazards. Hidden danger

So far, there is no complete monitoring and early warning system for old mining areas and areas with unfavorable geological bodies

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