后缘拉张裂缝对土坡稳定性评价的影响研究进展OA北大核心CSTPCD
Impact of back edge tensile cracks on soil slope stability evaluation:State-of-the-art research
探索后缘拉张裂缝对土坡稳定性评价的影响有助于边坡稳定性理论的完善.从后缘拉张裂缝对土坡失稳模式及稳定性的影响两方面进行回溯总结,为建立边坡拉剪耦合破坏稳定评价体系及为崩塌、阶梯状滑坡等失稳模式的判别提供理论依据;通过室内模型试验对其影响机理进行初探,发现土坡坡高、坡角及力学参数等因素会直接影响其后缘拉张裂缝起张位置、产状、深度,从而对土坡稳定性产生重大影响,最后对目前关于土坡稳定性评价及后缘拉张裂缝研究存在的主要问题进行总结与评述.
The impact of back edge tensile cracks on soil slope stability evaluation is explored in this study.This paper mainly summarized the influence of trailing edge tensile cracks on the instability mode,providing a theoretical basis for establishment of slope tensile-shear coupling failure stability evaluation system and identification of instability modes such as collapse and stepped landslide.Moreover,the influence mechanism was preliminarily explored from the results of indoor model testing result,and it was found that the slope height,slope angle and mechanical parameters of soil slope would directly affect the tensile crack initiation position,occurrence and depth of the trailing edge,which would have a significant impact on the slope stability.Finally,the main problems in the current research on soil slope stability evaluation and trailing edge tensile cracks were summarized and reviewed.
汤连生;郑邓衡;王玉玺;孙银磊
中山大学 地球科学与工程学院||南方海洋科学与工程广东省实验室(珠海)||广东省地球动力作用与地质灾害重点实验室,广东 珠海 519082
地质学
土坡边坡稳定稳定性评价拉张裂缝失稳模式
soil slopeslope stabilitystability evaluationtensile crackinstability mode
《土木与环境工程学报（中英文）》 2024 (004)
39-49 / 11
国家自然科学基金(41877229);广东省自然科学基金(2018B030311066);中国博士后科学基金(2019M663241) National Natural Science Foundation of China(No.41877229);Natural Science Foundation of Guangdong(No.2018B030311066);China Postdoctoral Science Foundation(No.2019M663241)
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