摘要
本文采用理论分析、现场实测及数值模拟的方法,研究埋深较浅且距离较近的煤层巷道和采煤工作面矿压显现规律,旨在解决该工程背景下工作面外错巷道强烈的矿压显现问题。研究结果可知:实际测量的外错巷道片帮最大深度达3m,严重破坏了其围岩塑性,少量煤块被喷出。巷道处在煤柱应力集中区且承载了该处的载荷是造成该问题的主要原因;而处于基本顶离层区域下的内错巷道矿压显现则不明显。
The method of therretical analysis, numerical simulation and field measurement were used in this paper, to research on the mine pressure behavior of roadway and working face with shallow buried deep buried, aims at the engineering background ,to solve the problem of strong mine pressure appearance of outward staggered roadway. The research results show that： the maximum wall caving depth amount to 3 meters, seriously damaged the rock plastic, a small amount of coal is ejected, it is the main cause of the problem that the roadway is in coal pillar stress concentration zone and bears the load; and the mine pressure appearance of outward staggered roadway that is under the basic roof separation zones is not obvious.
出处
《山东煤炭科技》
2016年第11期20-22,共3页
Shandong Coal Science and Technology
关键词
近距离
浅埋深
矿压
规律
close distance shallow depth mine pressure regular
