Geological supplementary survey method in treatment process of ground water disaster area

Abstract

The invention provides a geological supplementary survey method in the treatment process of a ground water disaster area. The geological supplementary survey method comprises the steps of exploring a fault and exploring a collapse column. The step of exploring a fault comprises the steps of selecting a first directional well, drilling a first directional drill hole, drilling a second directional drill hole, drilling a third directional drill hole and drilling a fourth directional drill hole. A first directional drill hole is drilled, and the fault position is determined. A second directional drill hole is drilled, and the coordinates of the control points F2 and A1 are obtained in the process; and a third directional drill hole is drilled and the coordinates of the control points D1, F3, B1, B2 and B3 are obtained respectively in the process. And a fourth directional drill hole is drilled, and coordinates of a control point C1 are obtained in the process. According to the geological supplementary exploration method in the treatment process of the ground water disaster area, the previous supplementary exploration mode is changed, the work amount is small, the drilling rate is high, the supplementary exploration efficiency can be effectively improved, and the practicability is high.

Description

technical field [0001] The invention belongs to the technical field of geological reconnaissance, and in particular relates to a geological reconnaissance method in the process of surface water damage regional control. Background technique [0002] When there are high-pressure water-rich or extremely strong aquifers on the coal seam floor, the method of surface water hazard regional treatment is usually used to carry out local grouting transformation on the aquifer, so that the coal seam mining will no longer be threatened by the water in the aquifer, thereby ensuring Mine prevention and control water security. However, due to the current problems of insufficient exploration in various coal mines, especially in the deep part of the mine, local hidden faults, unidentified collapse columns, and unclear occurrence status of coal seams have seriously affected the mining layout in this area. [0003] In the existing technology, when the degree of geological exploration is insuff...

AI Technical Summary

Problems solved by technology

However, the reconnaissance project requires a large amount of drilling engineering, and the drilling rate is low, resulting in low reconnaissance efficiency and poor practicability

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