| 降雨入渗对路基稳定性影响因素分析 |
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| 引用本文： | 李亮,刘兴旺,赵炼恒,杨小礼. 降雨入渗对路基稳定性影响因素分析[J]. 铁道科学与工程学报, 2007, 4(2): 19-23 |
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| 作者姓名： | 李亮 刘兴旺 赵炼恒 杨小礼 |
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| 作者单位： | 中南大学,土木建筑学院,湖南,长沙,410075 |
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| 基金项目： | 湖南省科技厅科技开发项目(04SK2009) |
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| 摘 要： | 将简化bishop法拓展应用于非饱和土,推导考虑降雨渗流的路基稳定性公式;利用求得的安全系数计算公式,对各影响因素进行理论分析;结合典型工程算例对降雨条件下的路基进行稳定性分析,并讨论各因素变化及其对路基稳定性的影响。分析结果表明,把用于饱和土的简化bishop法拓展应用至非饱和土是可行的,在降雨条件下考虑主要影响因素进行路基稳定性分析是较为有效的方法。
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| 关 键 词： | 道路工程 填土路基 路基稳定性 非饱和土 降雨入渗 |
| 文章编号： | 1672-7029（2007）02-0019-05 |
| 修稿时间： | 2006-12-15 |
Factors analysis of subgrade stability due to rainfall infiltration |
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| LI Liang,LIU Xing-wang,ZHAO Lian-heng,YANG Xiao-li. Factors analysis of subgrade stability due to rainfall infiltration[J]. Journal of Railway Science and Engineering, 2007, 4(2): 19-23 |
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| Authors: | LI Liang LIU Xing-wang ZHAO Lian-heng YANG Xiao-li |
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| Affiliation: | School of Civil and Architectural Engineering, Central South University, Changsha 410075, China |
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| Abstract: | The simplified Bishop method was applied and developed dexterously to the unsaturated soil.Based on the project example the subgrade stability formula under the rainfall seepage conditions was derived.Using the safety coefficient formula,various influence factors were considered and analyzed in theoretical view.The analysis results show the feasibility of the application of simplified Bishop method to the unsaturated soil,and the validity of the stability analysis of filling subgrade under rainfall infiltration conditions by considering the dominating factors on the subgrade stability. |
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| Keywords: | road engineering filling subgrade subgrade stability unsaturated soil rainfall infiltration |
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