三维边坡拟静力抗震稳定性分析

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (619 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要基于滑面正应力修正的三维边坡稳定性分析，采用拟静力的分析方法，建立三向地震作用下边坡的平衡方程，通过求解线性方程组得到安全系数与三向地震作用的函数关系。比较二维与三维拟静力分析方法对安全系数的影响；分别讨论对称滑体与非对称滑体2种情况下，三向地震对安全系数的影响规律；考虑滑体长度、不对称的程度以及土体参数等对安全系数的影响，并计算三向地震作用下的安全系数与仅考虑水平地震作用的安全系数之间的相对误差。结果表明：水平地震作用对安全系数影响最大，竖向地震作用次之，横向地震作用最小；采用三维分析方法更符合实际情况，精度更高。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章

关键词 ：边坡工程, 拟静力, 安全系数, 三向地震作用

Abstract：On the basis of the three-dimensional(3D) slope stability analysis of the modification of normal stresses on 3D slip surface，the solution to the factor of safety of the 3D slope subjected to the 3D earthquake is derived by using the method of pseudo-static analysis. The influences of the two-dimensional(2D) and 3D pseudo-static analysis methodS on factor of safety are compared. The influential law of 3D earthquake on the factor of safety under symmetrical slip surface condition and asymmetrical condition are discussed，respectively. Then the effect of the volume of slip mass，asymmetrical extent and parameters of soils on the factor of safety are also analyzed. Finally，the relative errors of factor of safety under 3D earthquake and only the horizontal earthquake are studied. Results show that the horizontal earthquake is uppermost influencing factors，the next is the vertical earthquake，and the lateral earthquake is the weakest. The 3D solution has a better agreement with practice and a higher degree of accuracy.

Key words： slope engineering pseudo-static factor of safety three-dimensional(3D) earthquake

收稿日期: 2010-03-03

引用本文:

胡成1，2，卢坤林1，朱大勇1，许强2. 三维边坡拟静力抗震稳定性分析[J]. 岩石力学与工程学报, 2011, 30(S1): 2904-2912.
HU Cheng1，2，LU Kunlin1，ZHU Dayong1，XU Qiang2. ANALYSIS OF PSEUDO-STATIC SEISMIC STABILITY FOR THREE-DIMENSIONAL SLOPE. , 2011, 30(S1): 2904-2912.

链接本文:

http://www.rockmech.org/CN/Y2011/V30/IS1/2904

[14]	朱大勇，钱七虎. 三维边坡严格与准严格极限平衡解答及工程应用[J]. 岩石力学与工程学报，2007，26(8)：1 513-1 528.(ZHU Dayong，QIAN Qihu. Rigous and quasi-rigous limit equilibrium solutions of 3D slope stability and application to engineering[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(8)： 1 513-1 528.(in Chinese))
[1]	周建，白冰，徐建平. 土动力学理论与计算[M]. 北京：中国建筑工业出版社，2001.(ZHOU Jian，BAI Bing，XU Jianping. Theory of soil dynamics and its numerical approach[M]. Beijing：China Architecture and Building Press，2001.(in Chinese)) " target="_blank">
[4]	刘杰，李建林，张玉灯，等. 基于拟静力法的大岗山坝肩边坡地震工况稳定性分析[J]. 岩石力学与工程学报，2009，28(8)：1 562- 1 570.(LIU Jie，LI Jianlin，ZHANG Yudeng，et al. Stability analysis of Dagangshan dam abutment slope under earthquake base on pseudo-static method[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(8)：1 562-1 570.(in Chinese))
[5]	NEWMARK N M. Effects of earthquakes on dams and embankments[J]. Geotechnique，1965，15(2)：139-160. " target="_blank">
[7]	中华人民共和国行业标准编写组. DL5073—2000 水工建筑物抗震设计规范[S]. 北京：中国电力出版社，2001.(The Professional Standards Compilation Group of People?s Republic of China. DL5073—2000 Anti-seismic design code for hydraulic building[S]. Beijing：China Electric Power Press，2001.(in Chinese)) " target="_blank">
[9]	赵炼恒，李亮，杨峰，等. 加筋土坡动态稳定性拟静力分析[J]. 岩石力学与工程学报，2009，28(9)：1 904-1 917.(ZHAO Lianheng，LI Liang，YANG Feng，et al. Dynamic stability pseudo-static analysis of reinforcement soil slopes[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(9)：1 904-1 917.(in Chinese))
[11]	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，2005，20(1)：164-171.(LIU Hongshuai，BO Jingshan，LIU Dedong. Review on study of seismic stability analysis of rock-soil slopes[J]. Earthquake Engineering and Engineering Vibration，2005，20(1)：164-171.(in Chinese))
[17]	罗红明，唐辉明，胡斌，等. 考虑地震力的刚体极限平衡法与其工程应用[J]. 岩石力学与工程学报，2007，26(增)：3 590-3 595. (LUO Hongming，TANG Huiming，HU Bin，et al. Rigid limit equilibrium method considering seismic force and its application[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(Supp.)：3 590-3 595.(in Chinese)) " target="_blank">
[2]	祁生文，伍法权，严福章，等. 岩质边坡动力反应分析[M]. 北京：科学出版社，2007.(QI Shengwen，WU Faquan，YAN Fuzhang，et al. Dynamic response analysis of rock slope[M]. Beijing：Science Press，2007.(in Chinese)) " target="_blank">
[3]	李维光，张继春. 地震作用下顺层岩质边坡稳定性的拟静力分析[J].山地学报，2007，25(2)：184-189.(LI Weiguang，ZHANG Jichun. Pseudo-static stability study on rock mass bedding slope under earthquake[J]. Journal of Mountain Science，2007，25(2)：184-189. (in Chinese))
[6]	SARMA S K. Seismic stability of earth dams and embankments[J]. Geotechnique，1975，25(4)：743-761. " target="_blank">
[8]	吕擎峰，殷宗泽，王叔华，等. 拟静力法边坡稳定分析的改进[J]. 岩土力学，2005，26(增1)：35-38.(LU Qingfeng，YIN Zongze，WANG Shuhua，et al. Improvement of pseudo-static method for slope stability analysis[J]. Rock and Soil Mechanics，2005，26(Supp.1)：35-38.(in Chinese))
[10]	栾茂田，李湛，范庆来. 土石坝拟静力抗震稳定性分析与坝坡地震滑移量估算[J]. 岩土力学，2007，28(2)：224-230.(LUAN Maotian，LI Zhan，FAN Qinglai. Analysis and evaluation of pseudo- static aseismic stability and seism-induced sliding movement of earth- rock dams[J]. Rock and Soil Mechanics，2007，28(2)：224-230.(in Chinese))
[12]	ZHU D Y，LEE C F. Explicit limit equilibrium solution for slope stability[J]. International Journal for Numerical and Analytical Methods in Geomechanics，2002，26(15)：1 573-1 590. " target="_blank">
[13]	朱大勇，丁秀丽，钱七虎. 一般形状边坡三维极限平衡解答[J]. 岩土工程学报，2007，29(10)：1 460-1 464.(ZHU Dayong，DING Xiuli，QIAN Qihu. Three-dimensional limit equilibrium solution to generalized-shaped slope stability[J]. Chinese Journal of Geotechnical Engineering，2007，29(10)：1 460-1 464.(in Chinese)) " target="_blank">
[15]	FREDLUND D G，KRAHN J. Comparison of slope stability methods of analysis[J]. Canadian Geotechnical Journal，1977，14(3)：429-439. " target="_blank">
[16]	朱大勇，李焯芬，姜弘道，等. 基于滑面正应力修正的边坡安全系数解答[J]. 岩石力学与工程学报，2004，23(16)：2 788-2 791.(ZHU Dayong，LEE C F，JIANG Hongdao，et al. Solution of slope safety factor by modifying normal stresses over slip surface[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(16)：2 788-2 791.(in Chinese))