坡面沉桩边坡动态稳定性三维极限上限分析

doi:10.13722/j.cnki.jrme.2016.0127

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (395 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract 采用极限分析上限法，建立土质边坡坡面沉桩动态稳定性三维计算模型，研究沉桩力、桩土间横向力等对边坡动态稳定性的影响。通过算例计算，对整个沉桩过程中边坡抗滑稳定安全系数的变化规律及其内在机制进行深入研究，并分析桩径、沉桩位置、坡角对边坡抗滑稳定安全系数的影响规律。结果表明：沉桩力对边坡稳定性产生不利影响，导致沉桩前期边坡安全系数持续降低；桩体穿过破坏面后，边坡安全系数由于桩身的抗滑作用而显著提高。桩径越大，沉桩前期安全系数越低，其下降速度也越快，但桩体穿过破坏面后安全系数提升也越明显；沉桩位置越靠近坡顶，沉桩过程中安全系数下降速度越快，导致最危险点的安全系数越低；坡角越大，沉桩过程中整体安全系数越低。分析结果对于坡面沉桩的稳定性评估及设计施工具有一定参考价值。

Key words：边坡工程坡面沉桩极限分析上限法三维破坏机构边坡动态稳定性抗滑稳定安全系数

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	RAO Pingping1
	ZHAO Linxue1
	LI Lin2
	LIU Ying3

Cite this article:

RAO Pingping1,ZHAO Linxue1,LI Lin2, et al. Three-dimensional transient stability of slopes during pile driving using upper-bound limit analysis[J]. , 2017, 36(3): 697-704.

URL:

http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2016.0127 OR http://www.rockmech.org/EN/Y2017/V36/I3/697

[18]	GAO Y F，YE M，ZHANG F. Three-dimensional analysis of slopes reinforced with piles[J]. Journal of Central South University，2015，22：2 322-2 327. " target="_blank">
[20]	ITO T，MATSUI T. Methods to estimate lateral force acting on stability piles[J]. Soils and Foundations，1975，15(4)：43-59. " target="_blank">
[8]	张晓曦，何思明，尹平保. 沉入式抗滑桩优化设计研究[J]. 土木工程学报，2012，45(12)：143-149.(ZHANG Xiaoxi，HE Siming，YIN Pingbao. Optimum design of deeply embedded anti-slide pile[J]. China Civil Engineering Journal，2012，45(12)：143-149.(in Chinese))
[4]	MICHALOWSKI R L. Slope stability analysis：a kinematical approach[J]. Geotechnique，1995，45(2)：283-293. " target="_blank">
[14]	MICHALOWSKI R L，DRESCHER A. Three-dimensional stability of slopes and excavations[J]. Geotechnique，2009，59(10)：839-850. " target="_blank">
[1]	杨克己. 实用桩基工程[M]. 北京：人民交通出版社，2004：163-166.(YANG Keji. Practical pile foundation engineering[M]. Beijing：China Communications Press，2004：163-166.(in Chinese)) " target="_blank">
[5]	DONALD I，CHEN Z Y. Slope stability analysis by the upper bound approach：fundamentals and methods[J]. Canadian Geotechnical Journal，1997，34(6)：853-862. " target="_blank">
[2]	潘振社.高桩码头打桩稳定验算的探讨[J]. 港工技术，1986，(2)：30-34.(PAN Zhenshe. The exploration of checking computations of the high pile wharf piling stability[J]. Port Engineering Technology，1986，(2)：30-34.(in Chinese))
[7]	ZHAO L H，LI L，YANG F，et al. Upper bound analysis of slope stability with nonlinear failure criterion based on strength reduction technique[J]. Journal of Central South University，2010，17(4)：836-844. " target="_blank">
[9]	唐高朋，赵炼恒，李亮. 基于MATLAB的边坡稳定性极限上限分析程序开发[J]. 岩土力学，2013，34(7)：2 091-2 098.(TANG Gaopeng，ZHAO Lianheng，LI Liang. Program development for slope stability using MATLAB software and upper bound limit analysis[J]. Rock and Soil Mechanics，2013，34(7)：2 091-2 098.(in Chinese))
[12]	饶平平，李镜培，崔纪飞. 邻近斜坡静压沉桩挤土效应试验[J]. 中国公路学报，2014，27(3)：25-31.(RAO Pingping，LI Jingpei，CUI Jifei. Model test research on squeezing effect during pile-sinking adjacent to slope[J]. China Journal of Highway and Transport，2014，27(3)：25-31.(in Chinese))
[15]	HAN C Y，CHEN J J，WANG J H，et al. Three-dimensional stability analysis of excavation using limit analysis[J]. Journal of Shanghai Jiaotong University，2013，18(6)：646-649. " target="_blank">
[17]	GAO Y F，ZHANG F，LEI G H，et al. An extended limit analysis of three-dimensional slope stability[J]. Geotechnique，2013，63(6)：518-524.
[19]	樊向阳. 静压桩施工沉桩阻力及沉桩挤土效应研究[博士学位论文][D]. 上海：同济大学，2007.(FAN Xiangyang. Study of sinking-resistance and compaction effect of static-press pile[Ph. D. Thesis][D]. Shanghai：Tongji University，2007.(in Chinese)) " target="_blank">
[3]	CHEN W F. Limit analysis and soil plasticity[M]. [S. l.]：Elsevier，1975：399-446. " target="_blank">
[6]	LI X P，HE S M，WANG C H. Stability analysis of slopes reinforced with piles using limit analysis method[C]// Advances in Earth Structures：Research to Practice. Shanghai：Geo-Institute，2006：105-112. " target="_blank">
[10]	孙志彬. 边坡稳定性上限分析方法及参数反演研究[博士学位论文][D]. 长沙：中南大学，2013.(SUN Zhibin. Upper bound analysis of slope stability and approaches to parameter back analysis[Ph. D. Thesis][D]. Changsha：Central South University，2013.(in Chinese)) " target="_blank">
[11]	饶平平，李镜培，刘颖. 斜边非轴对称位移边界下球孔扩张挤土分析[J]. 岩土力学，2011，32(9)：2 681-2 687.(RAO Pingping，LI Jingpei，LIU Ying. Analysis of soil squeezing effect for spherical cavity expansion with inclined nonaxisymmetric displacement boundary[J]. Rock and Soil Mechanics，2011，32(9)：2 681-2 687. (in Chinese))
[13]	FARZANEH O，ASKARI F，GANJIAN N. Three-dimensional stability analysis of convex slopes in plan view[J]. Journal of Geotechnical and Geoenvironmental Engineering，2008，134(8)：1 192-1 200. " target="_blank">
[16]	HAN C Y，CHEN J J，XIA X H，et al. Three-dimensional stability analysis of anisotropic and non-homogeneous slopes using limit analysis[J]. Journal of Central South University，2014，21(3)：1 142-1 147. " target="_blank">