无论公路、铁路、露天矿坑、采石场、坝址和溢洪道,都会遇到岩石边坡的稳定问题。岩石边坡不同于土质边坡。土体是由互不粘连的颗粒组成,可以认为是较均匀较连续的介质。岩体则不然,它基本上是由被许许多多不连续构造面分离开了的岩块组成的不均匀不连续介质。土体的破裂面可以发生在内部任何部位;岩石则不然,除非石质非常软弱,岩体的破裂面总是沿着既有的不连续面发展。因此,岩体的强度和变形性质都是各向异性的。岩石边坡的稳定主要受制于岩体中的不连续构造,而不是岩块自身的强度。岩石边坡的设计, Both roads, railways, open-pit mines, quarries, dam sites and spillways encounter the stability problem of rock slopes. Rock slopes are different from soil slopes. Soil is composed of non-sticking particles, which can be considered as a more uniform and continuous medium. The rock mass, on the other hand, is basically an inhomogeneous discontinuous medium consisting of rocks separated by many discontinuous structures. The rupture surface of the soil can occur in any part of the interior; the rock is not, unless the rock is very weak, the rupture of the rock mass along the existing discontinuous surface development. Therefore, the strength and deformation properties of rock mass are anisotropic. The stability of the rock slope is mainly controlled by the discontinuous structure in the rock mass, not the strength of the rock mass itself. Rock slope design,