岩层支护具有越来越重要的意义,因为深部矿山和提高劳动生产率的要求导致更高程度的机械化和更大的挖掘工程。这就促使开采推进速度加快,开采感生应力的增长率日益增加。一项挖掘工程一经完工,其周围的岩层就开始移动并向此新开挖的空间膨胀。这种膨胀现象是不能阻止的,但可以控制。幸运的是,在要求提高劳动生产率的同时,岩石力学这门科学也取得了进步。应力 Rock formation support is of increasing importance as the requirements of deep mines and increased labor productivity lead to a higher degree of mechanization and greater excavation. This prompted the mining to speed up the growth of mining induced stress increasing. Once a digging project is completed, the rock formations around it begin to move and expand into this newly excavated space. This expansion phenomenon can not be stopped, but can be controlled. Fortunately, the science of rock mechanics has also made some advances while demanding higher productivity. stress