论文部分内容阅读
针对现有崩塌体稳定性检算方法存在的问题,对倾倒式和错断式两种崩塌体的稳定性检算方法进行了修正,指出倾倒式破坏只考虑底部与稳定岩体断开的情况是不全面的;错断式破坏的破坏面确定不能按最大剪应力原理确定,而应遵循摩尔 库仑准则。建立了相应修正的稳定性检算方法,通过检算实例与原方法比较发现,对倾倒式检算,如果底部连接时,原方法考虑过于安全,不适用于底部连接的情况;对错断式检算,原检算方法偏于不安全,特别是当崩塌体底部岩体节理裂隙发育或有不利结构面存在时。
Aiming at the problems existing in the method of checking the stability of the existing collapse bodies, the method of checking the stability of both the collapsed and the collapsed bodies is amended. It is pointed out that only the bottom and the stable rock mass are disconnected when the pouring failure is considered Is not comprehensive; failure to determine the destruction of the fault surface can not be determined according to the principle of maximum shear stress, but should follow the Moor coulomb criterion. The corresponding revised stability checking method is established. By comparing the checking example with the original method, it is found that for the pouring checking method, the original method is too safe for the bottom connecting and not suitable for the bottom connecting. Accreditation, the original method of calculation partial to unsafe, especially when the bottom of the collapse body rock fractures or the development of unfavorable structural surface.