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川藏公路藏东段边坡稳定性研究与治理评价
(1.西南交通大学地球科学与环境工程学院, 四川 成都 610031;2.西藏大学工学院, 西藏 拉萨 850000)
STABILITY INVESTIGATION AND TREATMENT EVALUATION OF SLOPES IN THE EASTERN TIBET SECTION OF THE SICHUAN-TIBET HIGHWAY
(1.Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China;2.School of Engineering, Tibet university, Lhasa 850000, Tibet, China)
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投稿时间:2018-02-03    修订日期:2018-06-23
中文摘要: 川藏公路是一带一路南亚通道的主要干线,其藏东段地质灾害频发,如何有效治理、保障安全畅通意义重大。文章在详细调查的基础上,对取得的藏东段沿线所有边坡数据进行统计及特征分析,利用随机森林理论建立了边坡稳定性评判模型,根据计算出的影响因素重要性大小对边坡的稳定性进行判别,模型检验表明其准确率超过94.44%,同时结合实地验证,对边坡的治理提出了可行性建议,为川藏公路藏东段的有效治理提供实用参考资料。
Abstract:The eastern Tibet section of Sichuan-Tibet Highway is always suffered by unstable slopes even after years of repeated governance. In order to solve this urgent problem, a good knowledge of all slope data and slope treatment status of this area must be obtained. Totally 204 slopes along the Highway have been investigated in detail for three years. The present situation of slope treatment was counted, and its characteristics were analyzed distinguish by soil and rock landslides. Based upon data, factors causing slope instability were analyzed, and slope stability evaluation model was established using random forest method. The importance of influencing factors for slope stability and stability of all slopes were calculated by the model, and the model test showed that the accuracy was over 94.44%. The study results of this article could be used in the engineering management of highway works department. Also, suggestions are proposed on the management of highway slope based on the field investigation.
文章编号:     中图分类号:P642.22;P694    文献标志码:
基金项目:国家自然科学基金项目(41662020,41462012)
引用文本:
叶唐进,谢强,王鹰.川藏公路藏东段边坡稳定性研究与治理评价[J].地质力学学报,2019,25(2):233-239DOI:10.12090/j.issn.1006-6616.2019.25.02.022
YE Tangjin,XIE Qiang,WANG Ying.STABILITY INVESTIGATION AND TREATMENT EVALUATION OF SLOPES IN THE EASTERN TIBET SECTION OF THE SICHUAN-TIBET HIGHWAY[J].,2019,25(2):233-239DOI:10.12090/j.issn.1006-6616.2019.25.02.022

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