薄煤柱密封和加固及防灭火技术研究

Study on Thin-coal Pillar's Sealing and Reinforcing Fire Prevention Techniques

提高煤炭资源回采率是每个煤矿企业的社会责任,薄煤柱开采是提高煤炭回收率的有效途径,但薄煤柱开采所面临的支护和密封问题却在很长一段时间内难以解决。通过对薄煤柱开采工艺以及薄煤柱的密封加固工艺的详细阐述,并根据实验工作面(阳煤二矿80509综放工作面)的跟踪观测和技术经济性分析,探讨了薄煤柱开采的可行性和先进性。

Increasing the recovery ratio of coal resources is the social responsibility of each coal enterprise,and the mining of thin-coal pillars is an effective path for increasing the coal recovery rate.However,the supporting and sealing problems faced by the mining of thin-coal pillars couldn＇t be solved in a long period of time.Through expounding in detail the techniques for thin-coal pillars＇mining,sealing and reinforcing,and according to the track observation of and technical-economic analysis on the experimental face（80509 fully-mechanized face of No.2 Coal Mine of Yangquan Coal Industry（Group） Co.,Ltd.）,this paper probes into the feasibility and advancement of thin-coal pillars＇mining.