防治水技术在解放断层防水煤柱资源中的应用

Application of water prevention and control technology in liberating the fault waterproof coal pillar resources

断层防水煤柱的留设,可有效保障矿井煤炭资源安全开采,但同时也造成了大量煤炭资源的浪费,特别是邢台矿区,断层构造发育,煤柱资源浪费情况尤为明显。随着矿井开采年限增加,煤炭资源储量锐减,如何安全有效的解放断层防水煤柱资源,是延续矿井寿命的最直接途径。本文在探讨地面探查基础上,通过采用井下物、钻探相结合的综合防治水技术,对断层进行注浆加固,彻底切断煤层底板含水层向上水力联系,从而安全的解放断层煤柱资源。

The retention of fault waterproof coal pillars can effectively ensure the safe mining of coal resources in mines,but it also causes a large amount of waste of coal resources.Especially in Xingtai mining area,the fault structure is developed,and the waste of coal pillar resources is particularly obvious.With the increase of mining years,the reserves of coal resources decrease sharply.It is the most direct way to extend the mine life that how to liberate the fault waterproof coal pillar resources safely and effectively.Based on the discussion of ground exploration,the fault is reinforced by grouting in this paper through adopting the comprehensive water prevention and control technology combining underground geophysical exploration and drilling exploration,which completely cut off the upward hydraulic connection of the coal seam floor aquifer.The study safely liberated the fault coal pillar resources.