小煤柱工作面安全开采与围岩控制技术

Safety Mining and Surrounding Rock Control Technology of Small Coal Pillar Working Face

为了确保有效回收,需确定留置煤柱尺寸并设计配套巷道支护及安全方案。通过对地质条件、已采工作面矿压显现规律的研究,结合数值分析,确定了留煤柱尺寸。同时,对联合支护方式、水患处理、瓦斯防治、火灾预防提出了措施,确保了回采工作的安全、高效。

In order to ensure effective recovery, it is necessary to determine the size of retained coal pillar and design the supporting roadway support and safety scheme. Based on the study of geological conditions and ground pressure behavior law of mining face, combined with numerical analysis, the size of coal pillar is determined. At the same time, the combined support mode, flood treatment, gas prevention and fire prevention measures are put forward. It ensures the safety and efficiency of mining.