摘要
国电建投公司察哈素煤矿31309综采面末采及回撤中矿压显现强烈,导致作业难度成倍增加。通过采取加固主回撤通道、加强排水管理、改变设备回撤顺序、积极维护出架空间和加强防灭火等措施,避免了采空区自然发火,实现了31309综采面安全回撤,并为类似条件下的矿井提供参考。
The ground pressure in the final mining and withdrawal of 31309 fully mechanized face of Chahasu Coal Mine, China Power Construction Investment Corporation, is strong, which leads to doubling of the difficulty of operation. By strengthening the main withdrawal passage, strengthening drainage management, changing the withdrawal sequence of equipment, actively maintaining the space of outrigger and strengthening fire prevention and extinguishing measures, the spontaneous fire in goaf was avoided, the safe withdrawal of 31309 fully mechanized mining face was realized, and the reference for mines under similar conditions was provided.
作者
于化江
王炎宾
Yu Hua-jiang;Wang Yan-bin(Production and Technology Department of Chahasu Coal Mine, China Power Construction Investment Corporation, Inner Mongolia Ordos 017200)
出处
《山东煤炭科技》
2019年第3期48-50,共3页
Shandong Coal Science and Technology
关键词
复杂
综采
回撤
方法
complex
fully mechanized mining
withdrawal
method
