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山区建设经常遇到滑坡问题,囚而,斜坡和人工边坡稳定性的评价以及滑坡的防治,在山区建筑场地的工程地质勘察工作中显得特别重要。为解决这些问题,正确地确定滑动面以及合理选择斜坡土体的抗剪强度指标具有决定性的意义。滑动面的确定要通过野外工程地质调查及勘探工作,而抗剪强度指标的选择则必须以适宜的室内及野外剪切试验为基础。实践经验表明,在已经产生滑坡的场地,通过对滑坡体力学平衡的反算求得斜坡土体的综合抗剪强度指标是比较可靠的,道理很明显,分析滑动体所得出的抗剪强度
Mountainous construction often encounters landslides, prisoners, the evaluation of the stability of slopes and artificial slopes, and the prevention and control of landslides are particularly important in the engineering geological survey of mountainous construction sites. To solve these problems, it is of decisive significance to correctly determine the sliding surface and reasonably select the shear strength index of slope soil. The determination of the sliding surface must be conducted through field geological surveys and exploration work, and the selection of shear strength indicators must be based on suitable indoor and field shear tests. Practical experience shows that in the field where a landslide has already occurred, the comprehensive shear strength index of the slope soil is obtained through the inverse calculation of the mechanical balance of the landslide body. The reason is obvious, and the shear strength obtained from the sliding body is analyzed.