摘要
针对大采高工作面开采过程中的超前应力集中问题,所用的卸压法和支护加固法控制软岩巷道底鼓的机理,实质是采用措施改变巷道围岩应力状态,使底板岩层处于应力降低区,实现底板岩层稳定。
To solve the lead stress concentration in the process of mining on large-mining-height working face, the study proposed pressure relief method and support reinforcement method to control floor heave in soft rock roadways. It is essential to take measures to change surrounding rock stress to put the floor strata in the stress-relaxed area in order to realize the floor strata stability.
出处
《山西煤炭》
2013年第5期49-50,共2页
Shanxi Coal
关键词
大采高
动压区
超前应力
large-mining-height
dynamic pressure area
lead stress
