晋西隰县离石地区黄土高边坡可靠度研究

郑亚楠 侯晓坤 李萍 李同录

郑亚楠, 侯晓坤, 李萍, 李同录. 2014: 晋西隰县离石地区黄土高边坡可靠度研究. 工程地质学报, 22(3): 372-378. doi: 10.13544/j.cnki.jeg.2014.03.004
引用本文: 郑亚楠, 侯晓坤, 李萍, 李同录. 2014: 晋西隰县离石地区黄土高边坡可靠度研究. 工程地质学报, 22(3): 372-378. doi: 10.13544/j.cnki.jeg.2014.03.004
ZHENG Yanan, HOU Xiaokun, LI Ping, LI Tonglu. 2014: RELIABILITY STUDY OF LOESS HIGH SLOPE STABILITY IN IXIAN-LISHI AREA OF WESTERN SHANXI PROVINCE. JOURNAL OF ENGINEERING GEOLOGY, 22(3): 372-378. doi: 10.13544/j.cnki.jeg.2014.03.004
Citation: ZHENG Yanan, HOU Xiaokun, LI Ping, LI Tonglu. 2014: RELIABILITY STUDY OF LOESS HIGH SLOPE STABILITY IN IXIAN-LISHI AREA OF WESTERN SHANXI PROVINCE. JOURNAL OF ENGINEERING GEOLOGY, 22(3): 372-378. doi: 10.13544/j.cnki.jeg.2014.03.004

晋西隰县离石地区黄土高边坡可靠度研究

doi: 10.13544/j.cnki.jeg.2014.03.004
基金项目: 

国家自然科学基金项目(40772181,40972182)资助

详细信息
    作者简介:

    郑亚楠,女,硕士研究生,主要从事地质灾害研究.Email:zhengyanan1986@126.com

  • 中图分类号: P642.13+1;TD824.7

RELIABILITY STUDY OF LOESS HIGH SLOPE STABILITY IN IXIAN-LISHI AREA OF WESTERN SHANXI PROVINCE

  • 摘要: 实测了研究区8个自然极限状态坡建立地质模型。从地质勘探报告中收集了592组土样的土工试验数据,分地层年代统计了其物理力学指标。选取临县离石公路沿线9个工点的实验数据,统计了该区c、值的变异系数,并对其变异性进行了分析。将c、值变异系数进行组合,进行了Monte-Carlo模拟。模拟结果显示,所测8个极限状态坡稳定系数为0.96~1.14,不同变异系数组合下,失效概率多为33.0% ~61.8%。进一步对坡高为50.5m和 81.8m的自然极限状态坡进行分析,分析结果显示:对于坡高为50.5m的边坡,在变异系数取当地平均水平(COVc=0.66,COV=0.28)时,若设计要求失效概率不超过10%,则坡率不应高于1:1.81;对于坡高为81.8m的边坡,在该变异系数组合下,若设计要求失效概率不超过10%,则坡率不应高于1:1.94。
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出版历程
  • 收稿日期:  2013-06-19
  • 修回日期:  2014-03-14
  • 刊出日期:  2014-06-25

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