| 高速公路滑坡稳定性分析及治理优化研究 |
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| 引用本文： | 李新平,王涛,谢全敏,郭运华,代翼飞.高速公路滑坡稳定性分析及治理优化研究[J].岩土力学,2007,28(5):981-985. |
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| 作者姓名： | 李新平 王涛 谢全敏 郭运华 代翼飞 |
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| 作者单位： | 武汉理工大学 土木工程与建筑学院，武汉 430070 |
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| 摘 要： | 在分析溪沟口滑坡工程地质概况及形成机理的基础上，采用传递系数法和有限元法对其进行了稳定性评价。结果表明，该滑坡稳定性达不到安全标准，必须进行加固治理。考虑滑坡稳定状况，采用抗滑桩结合地表排水对滑坡进行治理。在传递系数法结合有限单元法计算结果的基础上，构造出一定数量的抗滑桩加固方案，分别计算其治理后的稳定性和工程造价，以此为进化神经网络的学习样本, 建立设计参数与稳定性及加固方案造价之间的非线性映射关系，利用遗传算法在全局范围内快速搜索出最优的设计参数，选择合理的滑坡治理方案。最后利用有限元法对滑坡体治理前后的稳定状况进行分析，对所提出的优化治理方案进行稳定性验算，结果证明优化方案能够达到滑坡治理的设计要求，治理效果明显。
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| 关 键 词： | 滑坡 稳定性 有限单元法 抗滑桩 滑坡治理 进化神经网络 |
| 文章编号： | 1000-7598-（2007）05-0981-06 |
| 收稿时间： | 2005-06-13 |
| 修稿时间： | 2005-06-132005-09-15 |
Study on stability analysis and optimum harness design for expressway landslide |
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| LI Xin-ping,WANG Tao,XIE Quan-min,GUO Yun-hua,DAI Yi-fei.Study on stability analysis and optimum harness design for expressway landslide[J].Rock and Soil Mechanics,2007,28(5):981-985. |
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| Authors: | LI Xin-ping WANG Tao XIE Quan-min GUO Yun-hua DAI Yi-fei |
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| Institution: | School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China |
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| Abstract: | According to geological characteristics and formation mechanism of Xigoukou Landslide, the calculation and evaluation of landslide stability are performed in consideration of four kinds of loading conditions by transmitting coefficient method and FEM. Based on the results of stability analysis, the anti-slide piles and ground drainage are adopted as the harnessing measures of landslide. Some harnessing schemes are formed based on the results of transmitting coefficient method and FEM as the study samples for the evolutionary neural network. The landslide stability and construction cost of these harnessing schemes are evaluated respectively; and the nonlinear relationship of the designing parameters of anti-slide piles with safety factors and construction costs is established. Through the genetic algorithm, optimum designing parameters of anti-slide piles are searched out from above schemes; and the most optimally harnessing scheme is achieved. The stability examination and analysis by FEM show that this optimized scheme can satisfy the design requirements; and it is effective and economic to the landslide harness. |
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| Keywords: | landslide stability FEM anti-slide pile landslide harness evolutionary neural network |
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