| 降雨入渗条件下非饱和黄土边坡稳定的可靠度分析 |
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| 引用本文： | 王建华,黄暖.降雨入渗条件下非饱和黄土边坡稳定的可靠度分析[J].水力发电,2006,32(10):38-40. |
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| 作者姓名： | 王建华 黄暖 |
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| 作者单位： | 1. 河海大学,江苏,南京,210098;浙江同济科技职业学院,浙江,杭州,310016
2. 浙江同济科技职业学院,浙江,杭州,310016 |
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| 摘 要： | 根据雨水入渗在土坡内引起的土壤容重和土体的强度变化,得到体积含水量与强度指标的拟合公式,对非饱和黄土边坡的稳定进行了可靠度分析,求得了土坡的失效概率,对工程的安全可靠性做出了评价。计算表明,降雨入渗条件下非饱和黄土边坡失稳的概率远大于不考虑降雨时的正常情况,因此,非饱和黄土的边坡稳定性应充分考虑降雨的影响,需通过试验来测定含水量与土的强度参数关系。
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| 关 键 词： | 边坡稳定 可靠度 失效概率 非饱和黄土 降雨入渗 南水北调中线工程 |
| 文章编号： | 0559-9342（2006）10-0038-03 |
| 收稿时间： | 2006-06-06 |
| 修稿时间： | 2006-06-06 |
Reliability Analysis of Stability for Unsaturated Loess Slopes Under the Condition of Rainfall Infiltration |
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| Wang Jianhua,Huang Nuan.Reliability Analysis of Stability for Unsaturated Loess Slopes Under the Condition of Rainfall Infiltration[J].Water Power,2006,32(10):38-40. |
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| Authors: | Wang Jianhua Huang Nuan |
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| Abstract: | According to the changes of the bulk density and strength of soil body under the condition of rainfall infiltration,a fitting formula for a relationship of water content with strength indexes of the soil is obtained.The failure probability of slope is calculated by analyzing the reliability of stability for unsaturated loess slope,which can estimate the safety degree of engineering.The calculations showed that the failure probability of slope in rainfall infiltration is greater than it in normal conditions,so the stability of unsaturated loess slopes must be considered the effect in rainfall by measuring the relationships of water content with strength indexes of soil. |
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| Keywords: | stability of slope reliability failure probability unsaturated loess rainfall infiltration Median-Line South-to-Noth Water Transfen Pwject |
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