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工作面推过一定距离后,采空区上覆岩层活动将趋于稳定,采空区内某些地带冒落矸石被逐渐压实,在距工作面一定距离的采空区也可能出现较小的支承压力,称为

多选题
2021-09-03 16:50
A、固定或残余支承压力
B、?采空区支承压力
C、移动性或临时支承压
D、側向支承压力
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正确答案
B@#@B

试题解析

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