凹陷露天矿边坡少剥离技术的时空原理

随着埋藏深度的增加，凹陷露天矿边坡岩体受自然风化和爆破震动破坏的程度下降，以及在空间受力上的迭加厚壁圆筒原理和端部作用原理，同种岩石的稳定性通常逐渐增强，可逐渐加陡边坡角，减少废石剥离量。

SPACE-TIME PRINCIPLES FOR REDUCING STRIPPING IN OPEN PITS

With the descent of mining, the influences of weathering and blasting on the stability of therock mass at lower benches of open pits will go dcwn,and due to the principle of superposed thick-walled tubesand the bottom action of open pit, the stability of the lower part of the rock mass win increase, so the slopecould be steepened gradually, and the stripping volume of barren rock could be decreased.