小煤柱回采巷道围岩控制措施研究

Study of Surrounding Rock Control Measures of Small Coal Pillar Mining Roadway

综采工作面小煤柱开采可有效提高工作面回采率,但是受采动应力、采空区压力影响,小煤柱预留难度大,经常出现煤柱破碎、垮落现象,对此西山煤电集团马兰矿通过技术研究,在12703综采工作面回采期间对预留的小煤柱采取了合理有效的支护措施,保证了工作面安全顺利开采。

Small coal pillar mining of fully mechanized working face can effectively improve the rate of mining face, but infuenced by mining stress and pressure of the mined-out area, small coal pillar reserved is diffcult, often leading to crushing, caving coal pillar phenomenon, as a result, Malan Mine, the Xishan Coal Power Group made a lot of technical researches, and adopted a reasonable and effective support measures to deal with reserved small coal pillar during the mining of the 12703 fully mechanized mining face, which ensures the safety of the working face production smoothly.