... roof strain indicator 顶板应变指示器 roof strata 顶板岩层 roof support pattern 顶板支护布置方式 ...
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Roof Strata Rupture Regulation 顶板岩层破断规律
Roof Strata Variation Stresses Regulation 顶板岩层应力变化规律
main roof strata 老顶岩层
roof strata moving 覆岩运动
complex roof strata 复杂顶板
roof-off-strata 顶板离层
The paper regards the main roof strata in uphill and downhill mining of an inclined longwall as a elastic plate.
本文将倾斜长壁仰斜、俯斜开采的老顶岩层视为倾斜弹性板。
By contrasting with weighting observation data, the conclusion that roof strata have large-small structures is demonstrated.
并通过现场矿压观测资料，从理论上论证了顶板岩层中存在的结构体实质上包括“大、小结构”两个部分。
The results show that the methods mentioned in this paper could be adopted to control the roof strata properly in certain case.
结果表明，使用该方法可以很好地控制浅埋深难垮顶板。
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