摘要
以河南某矿31071综采工作面为工程实践背景,分别从经验公式、工程类比、数值模拟三方面研究煤层开采后覆岩导水裂隙带的发育情况。结果表明:采高6 m、9 m时覆岩的"两带"发育高度分别为86 m、135 m,对类似地质条件、水库下采煤提供安全参数等具有重要意义。
Based on the engineering background of 31071 fully mechanized mining face in a coal mine of Henan, by using the methods of empirical formula, engineering analogy and numerical simulation research the devel opmental condition of water flowing fracture zone of overlying strata after mining. The results show that ＂ growth height of overlying rock are respectively 86 m and 135 m when the mining height is 6 m and 9 m, important significance to provide safety parameters for similar geological conditions and coal mining under two zone＂ which has reservoir.
出处
《山西焦煤科技》
2013年第10期31-34,共4页
Shanxi Coking Coal Science & Technology
关键词
开采沉陷
导水裂隙带
数值模拟
Mining subsidence
Water flowing fracture zone
Numerical simulation
