某矿北二采区提高开采上限可行性分析

Feasibility Analysis of Raising Mining Upper Limit in North No.2 Mining Area of a Mine

摘要: 为了延续矿井使用年限、提高煤炭资源回收利用率，本文通过综合分析以往矿井开采实践中的水文地质资料以及正在施工的探查验证钻孔等基础资料，系统评价顾桥矿北二采区煤层顶板含水层富水规律、顶板采动覆岩破坏发育高度等，安全确定近松散层浅部采区开采上限。同时基于矿井已有地质、水文资料和第四系水文地质补充勘探的基础上，参考国内类似水体下开采的实践经验，分析研究了提高开采上限煤区的水文地质、开采条件，有效地解决了保水开采提高开采上限的难题。本文所研究出的相关成果对类似条件下的煤炭开采具有一定的借鉴意义和应用价值。对保障煤矿安全高效生产具有较高的经济、社会效益。

Abstract: For mine use fixed number of year to improve the utilization rate of coal resource recovery, in this article, through comprehensive analysis of previous mine hydrogeological data and under construction in the practice of mining exploration drilling verification such as basic data, system evaluation, north of guqiao coal mine mining area coal seam roof aquifer water enrichment rule Roof mining overlying rock destruction and height, etc., determine nearly loose bed mining by mining safety limit. At the same time, based on the existing geological and hydrological data of the mine and the quaternary hydrogeological supplementary exploration, and referring to the practical experience of mining under similar water bodies in China, the hydrogeological mining conditions in coal areas with higher mining upper limit are analyzed and studied, which effectively solves the problem of raising the mining upper limit of water conservation mining. The relevant results studied in this paper have certain reference significance and application value to the coal mining under similar conditions and have higher economic and social benefits to ensure the safe and efficient production of coal mines.