改进最小势能滑坡稳定性评价方法在田家寨滑坡中的应用
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摘要
利用最小势能原理计算稳定系数的基本原理,根据其计算安全系数的局限性,结合瑞典条分法,综合考虑包括自重、地震力、水压力等方面的影响,计算出稳定系数,从而评价滑坡的稳定性,扩大了最小势能原理方法的工程应用范围,对实际的工程应用较前人的模型有了较大的进展,并利用田家寨滑坡对模型进行实例验证,证明了该方法的可行性和有效性。
By using the basic principle of calculating stability coefficient with minimum potential energy,according to its computation safety coefficient's limitation and combining Swedish slice method,comprehensively considering the influences of deadweight,earthquake force and water preasure etc.,the article calculated the stability coefficient,evaluated the stability of landslide,expanded the engineering application range of minimum potential energy principle and method,achieved a considerable advance on practical engineering application compared with predecessor's model,and taking example verification on the model with Tianjiazhai landslide,proved the feasibility and the effectiveness of this method.
By using the basic principle of calculating stability coefficient with minimum potential energy,according to its computation safety coefficient's limitation and combining Swedish slice method,comprehensively considering the influences of deadweight,earthquake force and water preasure etc.,the article calculated the stability coefficient,evaluated the stability of landslide,expanded the engineering application range of minimum potential energy principle and method,achieved a considerable advance on practical engineering application compared with predecessor's model,and taking example verification on the model with Tianjiazhai landslide,proved the feasibility and the effectiveness of this method.
引文
[1]夏元友,李梅.边坡稳定性评价方法研究及发展趋势[J].岩石力学与工程学报,2002,21(7):1087-1091.
[2]蔡文,扬春燕,林伟初.可拓工程方法[M].北京:科学出版社,1997.
[3]林立相,徐汉斌.边坡稳定性分析的可靠度方法[J].山地学报,1999,17 (3):235-239.
[4]冯夏庭,王泳嘉,李新平.基于神经网络的岩质边坡稳定性评估系统研究[J].自然灾害学报,1998,5(1):98-104.
[5]谢全敏,夏元友.岩体边坡稳定性的可拓聚类预测方法研究[J].岩石力学与工程学报,2003(3):438-441.
[6]李小强.最小势能原理在边坡稳定性分析中的应用[D].武汉:中国科学院武汉岩土力学研究所,2004.
[7]陆洋,李铀.最小势能二维边坡稳定分析方法的研究与应用[J].山西建筑,2005,31(21):114-115.
[8]黄昌乾,丁恩保.边坡工程常用稳定性分析方法[J].水电站设计,1999, 15(1):53-58
[9]刘传正.论滑坡稳定性评价的几个关键问题[J].中国地质灾害与防治学报,1996,7(3):55-59.
[10]时卫民,郑颖人,唐伯明,等.滑坡稳定性评价方法的探讨[J].岩土力学,2003,24(4):545-548,552.
[2]蔡文,扬春燕,林伟初.可拓工程方法[M].北京:科学出版社,1997.
[3]林立相,徐汉斌.边坡稳定性分析的可靠度方法[J].山地学报,1999,17 (3):235-239.
[4]冯夏庭,王泳嘉,李新平.基于神经网络的岩质边坡稳定性评估系统研究[J].自然灾害学报,1998,5(1):98-104.
[5]谢全敏,夏元友.岩体边坡稳定性的可拓聚类预测方法研究[J].岩石力学与工程学报,2003(3):438-441.
[6]李小强.最小势能原理在边坡稳定性分析中的应用[D].武汉:中国科学院武汉岩土力学研究所,2004.
[7]陆洋,李铀.最小势能二维边坡稳定分析方法的研究与应用[J].山西建筑,2005,31(21):114-115.
[8]黄昌乾,丁恩保.边坡工程常用稳定性分析方法[J].水电站设计,1999, 15(1):53-58
[9]刘传正.论滑坡稳定性评价的几个关键问题[J].中国地质灾害与防治学报,1996,7(3):55-59.
[10]时卫民,郑颖人,唐伯明,等.滑坡稳定性评价方法的探讨[J].岩土力学,2003,24(4):545-548,552.
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