摘要
针对保护煤柱合理宽度留设问题,利用理论计算公式得出理论值,引入修正系数对理论值加以修正,使其符合实际应用;以某矿208工作面为工程背景,修正后的煤柱宽度20m;通过在208工作面皮带顺槽的监测数据可知,矿压显现处于正常范围,20m的保护煤柱对208工作面是合理的。
For rational protective pillar width, a theoretical value is first obtained by theoretical calculation formula and then corrected by a correction factor to conform to the application. Taking No.208 working face as engineering background, the corrected width is determined to be 20 meters. Monitoring data of the belt crossheading of the working face shows that the strata behaviors are in the normal range and the 20m protective pillar is rational for the working face.
出处
《山西煤炭》
2013年第11期32-34,共3页
Shanxi Coal
关键词
孤岛工作面
保护煤柱
矿压显现
合理性
island mining face
protective coal pillars
strata behaviors
rationality
