| 降雨入渗下软岩边坡可靠度分析及其加固措施 |
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| 引用本文： | 张立,刘建华,夏栋舟.降雨入渗下软岩边坡可靠度分析及其加固措施[J].长沙交通学院学报,2011,27(1):30-36. |
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| 作者姓名： | 张立 刘建华 夏栋舟 |
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| 作者单位： | 湖南华罡规划设计研究院有限公司;长沙理工大学道路灾变防治及交通安全教育部工程研究中心;长沙理工大学土木与建筑学院; |
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| 基金项目： | 湖南省科技计划重点资助项目(2009JT1021); 长沙理工大学道路灾变防治及交通安全教育部工程研究中心开放基金资助项目(kfj100303) |
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| 摘 要： | 针对边坡稳定性分析,考虑了边坡开挖、加固措施影响、地下水作用及降雨渗流的影响,以此作为评价边坡在各种可能情况下安全稳定性的基础.结合边坡可靠度遗传算法,对依托工程路堑边坡稳定性进行了分析.计算结果表明：原设计方案中锚杆格梁将对边坡稳定性有所提高,但锚杆格梁位置不合理,其考虑降雨入渗后的边坡安全系数仅为1.176,可靠度指标Pf为9.81%;优化加固方案后,边坡在降雨入渗条件下的安全系数提高到1.320,可靠度指标Pf为1.23%,加固后的边坡稳定性较好,其计算思路将对类似的降雨条件下强风化岩质边坡的稳定性分析及加固措施的优化有一定指导作用.
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| 关 键 词： | 边坡 稳定性分析 降雨入渗 可靠度分析 遗传算法 |
Reliability analysis of soft rock slope and reinforcement under rainfall infiltration |
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| ZHANG Li,LIU Jian-hua,XIA Dong-zhou.Reliability analysis of soft rock slope and reinforcement under rainfall infiltration[J].Journal of Changsha Communications University,2011,27(1):30-36. |
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| Authors: | ZHANG Li LIU Jian-hua XIA Dong-zhou |
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| Institution: | ZHANG Li1,LIU Jian-hua2,XIA Dong-zhou3(1.Hunan Huagang Communications Plannig & Disign Research Institute,Changsha 410076,China,2.Engineering Research Center of Catastrophic Prophylaxis and Treatment of Road & Traffic Safety,Ministry of Education,Changsha University of Science & Technology,Changsha 410004,3.School of Civil Engineering and Architecture,China) |
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| Abstract: | Many factors including excavation,reinforcement,groundwater and rainfall infiltration were considered during slope stability analysis.Based on the above mentioned factors to slope stability evaluation in every condition and genetic algorithm on slope reliability analysis,the cutting slope in support construction was analyzed.The calculation results show that the anchor and lattice beam in original design scheme had increased slope stability,but the position of lattice beam was not reasonable and the slope s... |
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| Keywords: | slope stability analysis rainfall infiltration reliability analysis genetic algorithm |
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