摘要
某矿21141工作面的推进,致使原有孤岛面积进一步减小、围岩支撑动压增加。为探讨工作面推进对采场地压的影响,本文利用数值模拟技术和压力拱理论,分析了采场围岩应力变化状况;讨论了采场支撑动压对围岩压力拱的影响,获得了采场围岩应力变化状况。
The advance of Liudian mine face 21141,resulting in further reducing the original island area,rock support dynamic pressure increases. To investigate the impact of mining ground pressure by face advancing,the numerical simulation techniques and pressure arch theory are used,then the surrounding rock stress condition is analyzed,the support dynamic pressure effect on the surrounding rock pressure arch is discussed,the mining ground pressure of is obtained.
出处
《山东煤炭科技》
2014年第6期55-56,62,共3页
Shandong Coal Science and Technology
基金
中国博士后科学基金(2013M541811)
安徽理工大学大学博士基金
湖南省重点实验室(湖南科技大学)开放基金资助项目(201202)
关键词
支撑动压
压力拱
成拱系数
采场地压
dynamic mining pressure pressure arch arch-forming coefficient mining ground pressure
