摘要
由于工作面回采,采空区范围内形成底板卸压区,造成了原岩应力重新分布;采空区长期积水、积气对8~#煤工作面回采安全性造成一定影响。因此,本文根据矿井实际情况,采用理论分析和数值模拟分析法分析3~#煤采空区对8~#煤工作面回采安全性的影响,确保井下安全回采。
The stress redistribution of the original rock is caused by the formation of the pressure relief zone of the bottom plate within the goaf due to the stoping of the working face. The long-term water accumulation and gas accumulation in the goaf have a certain impact on the safety of the No.8 coal mining face. Therefore, according to the actual situation of the mine, this paper uses theoretical analysis and numerical simulation analysis to analyze the infuence of No. 3 coal mining area on the safety of No. 8 coal mining face to ensure the safety of underground mining.
作者
王二斌
Wang Er-bin(The Production and Dispatching Center of Guandi Coal Mine,Xishan Coal and Electricity,Shanxi Taiyuan 03002)
出处
《山东煤炭科技》
2018年第7期171-173,共3页
Shandong Coal Science and Technology
关键词
采空区
底板卸压区
数值模拟
goaf
bottom plate unloading pressure zone
numerical simulation
