浅析采场底板突水机理及预测方法

Analysis of Water Inrush Mechanism and Prediction Method of Stope Floor

由于近几年来煤矿事业高速发展,煤炭资源的供不应求,各个煤矿企业在原开采力度的基础上使矿井开采的深度和范围得以加大。与此同时,大规模开采所造成的巷道底板突水问题也日益严重,如果底板突水问题不能及时处理,就会影响煤矿的安全生产,甚至会导致整个矿井报废。本文以大同煤矿集团下属某矿为背景,通过深入分析该矿底板突水的类型及其影响因素,研究采场底板岩体的破坏深度与底板突水极限压力之间的关系,提出了煤层底板突水预测及防治措施。

Due to the rapid development of coal mine enterprises in recent years,the shortage of coal resources,the coal mining enterprises in the original mining intensity on the basis of the depth and scope of mine mining increased.At the same time,the problem of water inrush from roadway floor caused by largescale mining is becoming more and more serious.If the floor water inrush problem can't be dealt with in time,it will affect the safety of coal mine production,and even lead to deserting of entire mine.In this paper,a coal mine under the be under the jurisdiction of Datong Coal Mine Group as the background,through in-depth analysis of the types and influencing factors of the mine floor water inrush,the relationship between the field failure depth of floor rock mass and the limit pressure of water inrush of mining,proposes the prediction of water inrush from floor of coal seam and prevention measures.