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由于地下采掘所引起的地表沉陷现象,并不能做为坑内落盘的解释。纵令其具有地表原始变形的意义,也决不能以落盘的形状来推断普洛塔佳润诺夫教授的拱形理论,对漂石和碎石的地层来说是正确的。坑内支柱受到了压力就会变形,除应注意支柱被压坏的情形外,在支柱上面的填充,也需留意,否则沉陷必将延续,结果酿成钜灾。开鉴出一个拱形坑道时,必须注意该拱形所具有的自然均衡状态,避免上部岩石之崩落,保证在工作中没有危险
Due to underground subsidence caused by surface subsidence phenomenon, and can not be used as an explanation of the pit stop. Even if it has the meaning of the original surface deformation, it must never be deduced from the shape of the falling plate that the arching theory of Professor Plutarunov is correct for the rocks and gravel strata. The pillars inside the pillars will be deformed under the pressure. In addition to paying attention to the crushed pillars, the filling on the pillars should also be noticed. Otherwise, the subsidence will continue and the result will be huge disaster. To open an arched tunnel, attention must be paid to the natural equilibrium of the arch, to avoid the collapse of the upper rock and to ensure that it is not dangerous at work