抗滑桩加固边坡三维稳定因素的敏感性分析

李见飞

doi:10.13204/j.gyjzG19083102

抗滑桩加固边坡三维稳定因素的敏感性分析

doi: 10.13204/j.gyjzG19083102

李见飞

中国铁路上海局集团有限公司, 上海 200071

详细信息

作者简介:
李见飞,男,1990年出生,硕士,工程师。电子信箱:156228662@qq.Com

计量
- 文章访问数: 113
- HTML全文浏览量: 12
- PDF下载量: 3
- 被引次数: 0
出版历程
- 收稿日期: 2019-08-31
- 网络出版日期: 2021-10-27

SENSITIVITY ANALYSIS OF FACTORS EFFECTING 3D STABILITY OF SLOPES REINFORCED WITH ANTI-SLIDE PILES

LI Jianfei

China Railway Shanghai Group Co., Ltd., Shanghai 200071, China

摘要

摘要: 为给多级抗滑桩加固边坡的抗震设计提供参考，针对地震条件下桩加固边坡的安全系数及影响因素的敏感性开展研究。基于极限分析上限定理，结合拟静力法和强度折减法，计算地震条件下桩加固边坡的安全系数。通过正交分析法，求得边坡安全系数影响因素的敏感性由高到低的顺序依次为：黏聚力、内摩擦角、边坡倾角、水平地震力系数、桩的位置、桩的结构参数、边坡相对宽高比、戗台宽度。基于此，在实际施工时应主要考虑边坡倾角、地震、抗滑桩的影响，而平台相对宽高比、平台宽度应根据实际情况合理选择。
- 边坡工程 /
- 抗滑桩 /
- 极限平衡 /
- 敏感性分析 /
- 安全系数
Abstract: In order to provide a reference to seismic design of multi-stage slopes reinforced with anti-slide piles, a sensitivity study on the stability factors of 3D slopes reinforced with anti-slide piles under earthquake action was conducted. Based on the upper bound theorem and combined with pseudo-static method and strength reduction method, the safety factors of slopes were calculated. The sensitivity sequence from strong to weak influencing safety factors of slopes under seismic forces were cohesion, internal friction angles, slope angles, horizontal seismic force coefficients, pile positions, structural parameters of piles, relative ratios of wideth to height for slopes and berm width. Therefore, in the actual construction, the influence of slope angles, seismic forces and anti-slide piles shoud be fully taken into account, and the relative ratios of width to height for slopes and berm width should be rationally laid out according to actual conditions.
- slope engineering /
- anti-slide pile /
- limit equililorium /
- sensitivity analysis /
- safety factor

HTML全文

参考文献(25)

[1]	AUSILIO E, CONTE E, DENTE G. Seismic Stability Analysis of Reinforced Slopes[J]. Soil Dynamics and Earthquake Engineering, 2000, 19:159-172.
[2]	NIAN T K, CHEN G Q, LUAN M T, et al. Limit Analysis of the Stability of Slopes Reinforced with Piles Against Landslide in Nonhomogeneous and Anisotropic Soils[J]. Canadian Geotechnical Journal, 2008, 45:1092-1103.
[3]	LI X P, HE S M, WANG C H. Stability Analysis of Slopes Reinforced with Piles Using Limit Analysis Method[J]. Journal of Neural Engineering, 2006, 9(1):105-112.
[4]	LI X P, HE S M, WU Y. Seismic Displacement of Slopes Reinforced with Piles[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2010, 136(6):880-884.
[5]	赵炼恒,李亮,杨峰,等.加筋土坡动态稳定性拟静力分析[J].岩土力学与工程学报, 2009, 28(9):1904-1917.
[6]	HUNGR O. An Extension of Bishop's Simplified Method of Slope Stability Analysis to Three Dimensions[J]. Geotechnique, 1987, 37(1):113-117.
[7]	陈祖煜, 弥宏亮, 汪小刚. 边坡稳定三维分析的极限平衡方法[J].岩土工程学报, 2001,23(5):525-529.
[8]	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].岩土力学与工程学报, 2007, 26(8):1513-1528.
[9]	姜清辉, 王笑海, 丰定祥. 三维边坡稳定性极限平衡分析系统软件SLOPE3D的设计及应用[J].岩石力学与工程学报, 2003, 22(7):1121-1125.
[10]	CHEN R H, CHAMEAU J L. Three-Dimensional Limit Equilibrium Analysis of Slopes[J]. Geotechnique, 1983, 33(1):31-40.
[11]	冯树仁, 丰定祥, 葛修润, 等. 边坡稳定性的三维极限平衡分析方法及应用[J]. 岩土工程学报, 1999, 21(6):657-661.
[12]	LAM L, FREDLUND D G. A General Limit Equilibrium Model for Three-dimensional Slope Stability Analysis[J].Canadian Geotechnical Journal, 1993, 30(6):905-919.
[13]	MICHALOWSKI R L, DRESCHER A. Three-Dimensional Stability of Slopes and Excavations[J]. Geotechnique, 2009, 59(10):839-850.
[14]	GAO Y F, WU D, ZHANG F. Effects of Nonlinear Failure Criterion on the Three-dimensional Stability Analysis of Uniform Slopes[J]. Engineering Geology, 2015, 198:87-93.
[15]	MICHALOWSKI R L, MARTEL T. Stability Charts for 3D Failures of Steep Slopes Subjected to Seismic Excitation[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2011, 137(2):183-189.
[16]	YANG X L, LONG Z X. Seismic and Static 3D Stability of Two-Stage Rock Slope Based on Hoek-Brown Failure Criterion[J/OL]. Canadian Geotechnical Journal, 2016, 53:551-558:https://doi.org/10.1139/cgj-2015-0147.
[17]	YANG X L, LI Z W. Factor of Safety of Three-dimensional Stepped Slope[J/OL]. International Journal of Geomechanics. https://doi.org/10.1061/(ASCE)GM.1943-5622.0001154.
[18]	GAO Y F, YE M, ZHANG F. Three-Dimensional Analysis of Slopes Reinforced with Piles[J]. Journal of Center South University, 2015, 22(6):2322-2327.
[19]	XU J S, LI Y X, YANG X L. Stability Charts and Reinforcement with Piles in 3D Nonhomogeneous and Anisotropic Soil Slope[J]. Geomechanics and Engineering, 2018, 14(1):71-81.
[20]	文畅平.多级锚固高边坡临界高度影响因素敏感性分析[J].中国公路学报,2014, 27(2):35-44.
[21]	张旭辉,龚晓南,徐日庆.边坡稳定影响因素敏感性的正交法计算分析[J].中国公路学报,2013, 16(1):36-40.
[22]	季大雪,杨庆,栾茂田. 加筋均质边坡稳定影响因素的敏感性研究[J].中国公路学报,2013, 25(7):1089-1093.
[23]	何本贵,高谦,刘芳.公路路堑边坡稳定性影响因素正交分析与数值模拟[J].岩土工程学报,2005, 27(6):716-719.
[24]	ITO T, MATSUI T. Methods to Estimate Lateral Force Acting on Stabilizing Piles[J]. Soils and Foundation, 1975, 15(4):43-59.
[25]	YANG X L, PANG Q J. Three Dimensional Seismic and Static Stability of Rock Slopes[J]. Geomechanics and Engineering, 2015, 8(1):97-111.