土坡地震稳定性影响因素分析

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英文篇名：Analysis on influencing factors of soil slope dynamic stability under earthquake 中文刊名：煤田地质与勘探 英文刊名：Coal Geology & Exploration 作者：邵勇 ; 阎长虹 ; 许宝田 英文作者：SHAO Yong ; YAN Changhong ; XU Baotian(Department of Earth Sciences and Engineering ; Nanjing University ; Nanjing 210093 ; China) 中文关键词：土质边坡 ; 地震 ; 动力有限差分 英文关键词：soil slope ; earthquake ; dynamic finite-difference 出版日期：2010-10-25 机构：南京大学地球科学与工程学院; 年：2010 期：05 出版单位：煤田地质与勘探

摘要

针对目前土质边坡地震稳定性评价还没有成熟可靠的标准,采用FLAC3D对土坡进行地震稳定性分析,得出:在土体强度参数中,摩擦角对土坡的稳定性影响最大。地震波传播方向平行于坡面时,比地震波传播方向与坡面相交时对土坡的危害要小得多。提出对土坡采用分级处理,多设置平台,更利于抗震。
Soil slope is often performed in engineering projects such as road slope,the slope created by heaping mountain landscape,etc,but at present,the stability evaluation of soil slope under earthquake has not yet mature and reliable standard.Analysis of the stability of slopes under earthquake has been made by FLAC3D.Slopes using hierarchical processing and multi-platforms will be favorable to resisting earthquake.In the soil strength parameters,friction has the greatest impact on the stability of slopes.Hazards on the slopes are much smaller when seismic waves are parallel to the slope than when they intersect the slope.

引文

[1]薄景山,徐国栋,景立平.土边坡地震反应及其动力稳定性分析[J].地震工程与工程振动,2001,21(2):116-120.
    [2]王成虎,何满潮,刘墨山.某水电站高边坡在地震作用下的稳定性分析[J].地震工程与工程振动,2006,26(3):248-251.
    [3]刘红帅,薄景山,刘德东.岩土边坡地震稳定性分析研究评述[J].地震工程与工程振动,2005,25(1):164-171.
    [4]周永江,王开云,何江达.边坡动力作用效应及动安全系数分析方法[J].中国地质灾害与防治学报,2005,16(增刊):164-171.
    [5]陈厚群.坝址地震动输入机制探讨[J].水利学报,2006,37(12):1417-1423.
    [6]郑颖人,叶海林,黄润秋.地震边坡破坏机制及其破裂面的分析探讨[J].岩石力学与工程学报,2009,28(8):1714-1723.