摘要
选择典型地质剖面,对某高陡边坡的稳定性进行了探讨,根据地质调查和勘察资料,建立了地质模型和力学分析模型。根据设计的不同剪出口高度、结构面切割岩体厚度计算工况,研究确定了该岩质边坡的滑移模式和最不利破坏面。在此基础上,计算了其在自然状态、自然+地震、饱水状态和饱水+地震条件下的稳定性,发现其在饱水+地震条件下的稳定性不满足工程稳定性要求,建议对其作锚固和护面处理,对坡脚相对软弱层也应作补强处理。
The stability of the high and steep rock slope is discussed in the chosen typical geological section. According to the geological survey and engineering investigation, the geology and mechanical model is established. The slipping model and the most disadvantaged destruction plane are determined under computing schemes according to the cut export height and different rock thickness cutting by fissure plane. Based on these, its stability under natural condition, natural and seismic condition, sat- urated condition, saturated and seismic condition is computed and analyzed. It is found that the stability of the rock slope under the saturated and seismic condition isn＇t satisfied with the requirement of the engineering requirement. It is suggested the engineering strengthening measure should be taken.
出处
《土工基础》
2009年第3期63-66,共4页
Soil Engineering and Foundation
关键词
边坡
稳定性
结构面
安全系数
slope, stability, fissure plane, safety factor
