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目前开挖工程中较成熟的岩质边坡设计方法,一般存在两个问题:1.有考虑构造面走向与路线方向斜交的情况,根据大量路堑边坡的调查,证明构造面走向与路线方向的交角θ,对边坡稳定性分析是一不可缺少的因素;2.没有考虑最不利情况下自然界的长期作用和人为活动后C、φ值处于最不利条件。因此,岩质边坡设计的一般步骤是:(1)调查主构造面的数量、产状、路线的方向、边坡的倾向、和构造面、路线相互分布的关系,开挖段自然山坡的坡高H′、坡率m′和坡角α′;(2)对各构造面及其交线进
At present, the more mature design methods of rock slope in excavation generally have two problems: 1. Considering the skew between the direction of construction plane and the direction of the route, according to the survey of a large number of cutting slope, it is proved that the direction and direction Angle of intersection θ is an indispensable factor in slope stability analysis. 2. The C and φ values are the most adverse conditions without considering the long-term role of nature in the most unfavorable conditions and human activities. Therefore, the general steps of rock slope design are as follows: (1) To investigate the relationship between the number of main structures, the shape, the direction of the route, the inclination of the slope, the mutual distribution of the structure plane and the route, Slope height H ’, slope rate m’ and slope angle α ’; (2) For each construction surface and its intersection line