...顶板管理方法 [gap=1064]words:underground mining; high class highway; dangers evaluation; mining method; roof management ...
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face roof management 工作面顶板管理
roof management class 顶板管理分类
roof management method 顶板管理方法
roof management technology 顶板管理技术
management of roof over loft 机道顶板管理
roof grading management regulations 顶板分级管理制度
roof control and management 顶板控制和管理
Defend is difficult since its stability is bad, often bring face roof fall, the roof management is very difficult.
由于其稳定性差、维护困难,经常造成工作面顶板冒落,给顶板管理带来了很大困难。
Defend is difficult since its stability is bad. It often brings face to roof fall. The roof management is very difficult.
由于其稳定性差、维护困难,经常造成工作面顶板冒落,给顶板管理带来了很大困难。
The paper introduces a new way of roof management by analyzing the high temperature, fragile roof in the working surface in Qujiang which has obtained a better result.
针对曲江回采工作面温度高,顶板破碎等特征,采用“见四放一”方式管理顶板,取得了较好的成效。
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