开滦钱家营矿综采工作面根据工作面过老巷过程中遇到的困难和问题,改变传统通过老巷的思路,优化过老巷的方法,提高了过老巷的安全系数和生产效率,为以后过老巷工作积累了丰富的经验。 According to the difficulties and problems encountered during the process of crossing the old lane, the Kailuan Qianjiyaying fully mechanized coal mining face has changed the traditional way of passing the old lane and optimized the old lane, thus improving the safety coefficient and production of the old lane Efficiency, has accumulated rich experience for the old alley after work.