roof weight meaning in English
顶板压力
Examples
- Based on the in - situ observation of the firstly mined working face of nanliang coal mine , the roof movement , the roof weighting intensity , and entry deformation and failure of the working face were analyzed
摘要通过南梁煤矿首采工作面采前的实验研究和开采时的现场观测，分析了工作面顶板的移动、来压强度以及巷道变形破坏情况，总结了厚黏土覆盖层浅埋煤层单体长壁工作面的矿压显现规律。 - Because the loader and the moduls of elasticity exists part difference in key stratum and combinatorial key stratum , and the formulae of calculating the roof weighting step has difference , so there must be existing big error if we use the formulae of key stratum to calculate the shallow coal seam ' s weighting parameter
大柳塔1203工作面按照关键层计算得出的顶板来压步距与实际相差很大，而按照组合关键层计算得出的顶板来压步距与实际基本吻合。