Water disaster probing method for deep mineable coal bed

Abstract

The invention discloses a water disaster probing method for a deep mineable coal bed. The water disaster probing method comprises the steps that drill hole probing is conducted, specifically, bedding drilling is conducted on a bottom plate aquifer dissolved fissure, a fissure zone, a fault water guiding zone, a water-rich area and a vertical water guiding structure, and suspected watered points of thin limestone initial fissures in bottom plate limestone are probed through a ground directional bedding drilling and precise bed controlling technology. By adopting the technical scheme of the invention, the ground directional bedding drilling and precise bed controlling technology is applied to drilling, the suspected watered points are probed, and the thin limestone initial fissures in the bottom plate limestone are subjected to net pulling probing; and the bottom of the coal bed is managed through drilling, regional exploration is conducted on the bottom plate aquifer dissolved fissure, the fissure zone, the fault water guiding zone, the water-rich area and the special vertical water guiding structure, and thus, hidden water disasters of the deep minable coal bed are probed; and positioning is accurate, precise governance in the next step is ensured so that the stoping work face can be governed, and the effect that bottom plate water bursting in the stoping process is avoided can be ensured.

Description

technical field [0001] The invention belongs to the field of coal mining, and more specifically, the invention relates to a method for detecting water hazards in deep mining coal seams. Background technique [0002] In the process of coal mining, large-scale vertical water-conducting structures (collapsed pillars) are concealed. Traditional conventional exploration methods such as drilling and geophysical prospecting are relatively backward, with poor predictability and limited degree of exploration and control. Under the influence of high water pressure and mining disturbance, it is very easy to induce large-scale Water inrush disaster: the vertical channel of the fault zone, with the increase of mining depth, the development of cracks in the new floor, resulting in the activation of faults, the thickness of the effective water-resisting layer of the floor becomes smaller, and under the influence of high water pressure and mining, water inrush is very easy to occur on the fl...

AI Technical Summary

Problems solved by technology

[0002] In the process of coal mining, large-scale vertical water-conducting structures (collapsed pillars) are concealed. Traditional conventional exploration methods such as drilling and geophysical prospecting are relatively backward, with poor predictability and limited degree of exploration and control. Under the influence of high water pressure and mining disturbance, it is very easy to induce large-scale Water inrush disaster: the vertical channel of the fault zone, with the increase of mining depth, the development of cracks in the new floor, resulting in the activation of faults, the thickness of the effective water-resisting layer of the floor becomes smaller, and under the influence of high water pressure and mining, water inrush is very easy to occur on the floor At the same time, the fault zone communicates with the Tai and Austrian ash aquifers, and the dynamic supply of Austrian ash participates in water inrush, which increases the risk of water disaster control; the conventional underground and surface treatment methods are less effective and cannot meet the needs of safe mining at the working face