| 降雨条件下阶梯状黄土边坡稳定性试验 |
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| 引用本文： | 胡晋川,谢永利,王文生.降雨条件下阶梯状黄土边坡稳定性试验[J].广西大学学报(自然科学版),2010,35(1). |
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| 作者姓名： | 胡晋川 谢永利 王文生 |
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| 作者单位： | 1. 长安大学公路学院,陕西,西安,710064
2. 长安大学公路学院,陕西,西安,710064;陕西公路勘察设计院,陕西,西安,710068 |
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| 基金项目： | 国家西部交通建设科技项目(200631881291) |
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| 摘 要： | 为揭示黄土公路阶梯状高路堑边坡在降雨条件下的稳定性状,依托陕西某高速公路黄土路堑边坡工程,进行了现场试验和数值模拟,并通过离心模型试验,研究了阶梯状黄土高路堑边坡在降雨条件下的变形发展过程、坡面降雨入渗规律、涵水与护坡作用以及稳定性分析。研究结果表明:非饱和黄土阶梯状多级矮坡在降雨条件下,边坡的变形存在先垂直、后水平的特点,发生破坏前,会发生明显的侧向变形,在坡内很短距离无水平应变;一般降雨不会影响对阶梯状高边坡的整体稳定性;阶梯状路堑边坡能充分利用黄土的直立特性,来消除降雨对坡面的冲刷,最大限度地减少坡面产流,增加坡面的降雨入渗量;阶梯状路堑边坡还具有边坡防护、水分涵养与景观美化等功能,具有良好的工程和应用价值。
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| 关 键 词： | 黄土边坡 阶梯状多级矮坡 稳定性试验 离心模型试验 |
Stability characteristics test of multi-stairs-low highway cut slope in loess under a rainfall condition |
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| HU Jin-chuan,XIE Yong-li,WANG Wen-shen.Stability characteristics test of multi-stairs-low highway cut slope in loess under a rainfall condition[J].Journal of Guangxi University(Natural Science Edition),2010,35(1). |
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| Authors: | HU Jin-chuan XIE Yong-li WANG Wen-shen |
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| Institution: | HU Jin-chuan1,XIE Yong-li1,WANG Wen-shen1,2 |
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| Abstract: | Based on slope engineering of shaan-xi highway,the centrifugal model test,the numerical simulation and the stability analysis are carried out to study the stability characteristics of the multi-stairs-low highway loess slope under a rainfall condition. The development of deformation,the rule of rainfall infiltration,the function of water containing and slope protection,and stability analysis of the multi-stairs-low highway loess slope under a rainfall condition are studied deeply. The research results show ... |
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| Keywords: | cut slope in loess multi-stairs-low slope stability characteristics test centrifugal model test |
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