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

A high-speed railway foundation and stability technology, applied in railway signal and safety, seismic signal processing and other directions, can solve problems such as hidden safety hazards, lack of a complete monitoring and early warning system, and damage to ground building facilities.

Inactive Publication Date: 2018-02-23
SHANDONG UNIV OF SCI & TECH
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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

Method used

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

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Embodiment Construction

[0017] Further illustrate technical scheme of the present invention below in conjunction with accompanying drawing,

[0018] Such as Figure 1-2 As shown, the high-speed railway foundation stability early warning method in the strong mine earthquake area of ​​the present invention is as follows:

[0019] The first step is to determine the main fault zone that affects the stability of the high-speed railway foundation

[0020] According to the geological exploration data of the mining area and combined with the outcropping of ground faults, the distribution of faults and the structure of fault zones within 1000m on both sides of the high-speed railway are determined, and the main fault that affects the stability of the high-speed railway foundation is determined;

[0021] The second step, ground construction drilling

[0022] At the edge of the fracture surface near the main fault, construct a hole with a diameter of 150mm. The depth of the hole reaches the position where the...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/30
CPCB61L23/048
Inventor 潘立友
Owner SHANDONG UNIV OF SCI & TECH
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