INVERSION OF STRENGTH PARAMETERS AND STABILITY ANALYSIS OF REINFORCED SLOPE WITH LIMIT EQUILIBRIUM THEORY

DENG Dongping; LI Liang

doi:10.13544/j.cnki.jeg.2016.01.002

Volume 24 Issue 1

Feb. 2016

Turn off MathJax

Article Contents

Article Navigation > JOURNAL OF ENGINEERING GEOLOGY > 2016 > 24(1): 10-18

DENG Dongping, LI Liang. 2016: INVERSION OF STRENGTH PARAMETERS AND STABILITY ANALYSIS OF REINFORCED SLOPE WITH LIMIT EQUILIBRIUM THEORY. JOURNAL OF ENGINEERING GEOLOGY, 24(1): 10-18. doi: 10.13544/j.cnki.jeg.2016.01.002

Citation:

DENG Dongping, LI Liang. 2016: INVERSION OF STRENGTH PARAMETERS AND STABILITY ANALYSIS OF REINFORCED SLOPE WITH LIMIT EQUILIBRIUM THEORY. JOURNAL OF ENGINEERING GEOLOGY, 24(1): 10-18. doi: 10.13544/j.cnki.jeg.2016.01.002

Citation:

PDF( 2391 KB)

INVERSION OF STRENGTH PARAMETERS AND STABILITY ANALYSIS OF REINFORCED SLOPE WITH LIMIT EQUILIBRIUM THEORY

doi: 10.13544/j.cnki.jeg.2016.01.002

College of Civil Engineering, Central South University, Changsha 410075

Funds:

Received Date: 2014-12-02
Rev Recd Date: 2015-04-14
Publish Date: 2016-02-25

Abstract

Abstract

Parameter inversion is an effective way to obtain more reliable strength parameters of slope. In the article, after discriminating the position of the critical slip surface, the explicit formulas for inversion of strength parameters are deduced by the established relation between strength parameters and one to one relationship among strength parameters, and the critical slip surface. The classical Swedish slice method is used for calculating the factor of safety. Then, the inversion results are used to study the stability of slope reinforced by anchorage cable. Through analyzing actual case, the feasibility and practicability of the current method are verified. Some conclusion are obtained as follows:(1)Pre-stress cable has an effective reinforcement on slope. Its role on slope stability is more effective when the position of pre-stress cable on slope surface is more near to the lower sliding point of the slip surface; (2)The calculated factor of safety is larger as the pre-stress of cable is larger. Increase of horizontal inclination of anchorage cable has small effect on the calculated factor of safety.
- Slope stability,
- Limit equilibrium,
- Critical slip surface,
- Strength parameters,
- Inversion,
- Anchorage cable

FullText(HTML)

References(1)

References

Deng D P,Li L,Luo Q. 2013. Limit equilibrium analysis on stability of soil slopes reinforced with pre-tensioned cables[J]. Journal of Engineering Geology, 21 (1): 53～60.

Fellenius W. 1936. Calculation of the stability of earth dams[C]//Proc.2nd Congr. Large Dams. Washington, D.C:[s.n.]: 445～462.

Han B,Zheng L J,Wang S Y,et al. 2013. Synthetic reinforcement of complicated and broken open pit slope[J]. Journal of Central South University(Science and Technology), 44 (2): 772～777.

Huo Y X,Huang R Q,Ju N P,et al. 2009. Deformation mechanism and stabilization measures of broken granitic rock slope that experienced Wenchuan Earthquake[J]. Journal of Engineering Geology, 17 (3): 317～321.

Li J,Gao Y T,Wu S C,et al. 2013. Improvement research on the strength reduction method for open pit mines[J]. Journal of University of Science and Technology Beijing, 35 (8): 971～976.

Li N,Qian Q H. 2010. Four criteria of stability analysis and assessment of high rock slope[J]. Chinese Journal of Rock Mechanics and Engineering, 29 (9): 1754～1759.

Li X P,He S M,Xu J,et al. 2006. Stability analysis of slopes reinforced with pre-tensioned cables by limit analysis method[J]. Journal of Sichuan University(Engineering Science Edition), 38 (5): 82～85.

Liu C H,Chen C X,Feng X T. 2006. Discussion on design method of prestressed cable for soil slope[J]. Rock and Soil Mechanics, 27 (8): 1349～1352.

Liu M W,Zheng Y R,Zhang Y F. 2009. A new inversion method of rock-soils parameters based on complex-variable-differentiation method[J]. Chinese Journal of Computational Mechanics, 26 (5): 676～683.

Lu K L,Zhu D Y. 2012. The state of the art in the limit equilibrium method by modifying normal stresses over slip surface[J]. Industrial Construction, 42 (6): 131～136.

Morgenstern N R,Price V E. 1965. The analysis of the stability of general slip surfaces[J]. Géotechnique, 15 (1): 79～93.

Shen J H,Cui J K,Xu J,et al. 2008. Systematic stress test based back analysis of stress distribution in slope[J]. Journal of Engineering Geology, 16 (5): 616～619.

Shi C,Zhang Y,Sun H K,et al. 2010. Back analysis of strength parameters of sliding surface of Zhenggang Landslide deposit body[J]. Chinese Journal of Rock Mechanics and Engineering, 29 (S2): 3728～3734.

Sun Z B,Yang X L,Huang F. 2013. Back analysis of rock slope GSI magnitude under Hoek-Brown criterion[J]. Journal of Central South University(Science and Technology), 44 (6): 2515～2519.

Wang X R,Jiang Y H. 2003. Application of pre-stressed anchor cable to control engineering of high slope disaster[J]. Chinese Journal of Rock Mechanics and Engineering, 22 (S2): 2731～2733.

Wu M M,Ruan H T,Liu L. 2010. Application of pre-stressed anchor cables in treatment of geotechnical slopes[J]. Chinese Journal of Geotechnical Engineering, 32 (S1): 324～326.

Yang T H,Zhang F C,Yu Q L,et al. 2011. Research situation of open-pit mining high and steep slope stability and its developing trend[J]. Rock and Soil Mechanics, 32 (5): 1437～1451,1472.

Zhang K,Cao P,Bao R. 2013. Rigorous back analysis of shear strength parameters of landslide slip[J]. Transactions of Nonferrous Metals Society of China, 23 (5): 1459～1464.

Zhao L H,Luo Q,Li L,et al. 2013. Energy analysis method for slopes reinforcing with pre-stressed anchor cables based on minimum energy principle of instability state[J]. Rock and Soil Mechanics, 34 (2): 426～432.

Zhou X H,Rao X B. 2000. Study on stability of Dayantang Landslide[J]. Journal of Yangtze River Scientific Research Institute, 17 (2): 41～43,47.

邓东平,李亮,罗强. 2013. 预应力锚索加固土质边坡极限平衡稳定性分析[J]. 工程地质学报, 21 (1): 53～60.

韩斌,郑禄璟,王少勇,等. 2013. 复杂破碎露天边坡的综合加固技术[J]. 中南大学学报(自然科学版), 44 (2): 772～777.

霍宇翔,黄润秋,巨能攀,等. 2009. 碎裂结构边坡变形机理及治理对策研究[J]. 工程地质学报, 17 (3): 317～321.

李健,高永涛,吴顺川,等. 2013. 露天矿边坡强度折减法改进研究[J]. 北京科技大学学报, 35 (8): 971～976.

李宁,钱七虎. 2010. 岩质高边坡稳定性分析与评价中的四个准则[J]. 岩石力学与工程学报, 29 (9): 1754～1759.

李新坡,何思明,徐骏,等. 2006. 预应力锚索加固土质边坡的稳定性极限分析[J]. 四川大学学报(工程科学版), 38 (5): 82～85.

刘才华,陈从新,冯夏庭. 2006. 土质边坡预应力锚索设计方法探讨[J]. 岩土力学, 27 (8): 1349～1352.

刘明维,郑颖人,张玉芳. 2009. 一种基于复变量求导法的岩土体抗剪强度参数反演新方法[J]. 计算力学学报, 26 (5): 676～683.

卢坤林,朱大勇. 2012. 基于滑面正应力修正的极限平衡法的研究现状[J]. 工业建筑, 42 (6): 131～136.

沈军辉,崔建凯,徐进,等. 2008. 斜坡应力分布的系统测试与反演分析[J]. 工程地质学报, 16 (5): 616～619.

石崇,张玉,孙怀昆,等. 2010. 争岗滑坡堆积体滑面强度参数反演分析[J]. 岩石力学与工程学报, 29 (S2): 3728～3734.

孙志彬,杨小礼,黄阜. 2013. Hoek-Brown 准则下岩质边坡的GSI反演[J]. 中南大学学报(自然科学版), 44 (6): 2515～2519.

王晓荣,蒋育华. 2003. 预应力锚索在高边坡病害治理工程中的应用[J]. 岩石力学与工程学报, 22 (S2): 2731～2733.

吴茂明,阮含婷,刘鹭. 2010. 预应力锚索在岩土边坡工程治理中的应用[J]. 岩土工程学报, 32 (S1): 324～326.

杨天鸿,张锋春,于庆磊,等. 2011. 露天矿高陡边坡稳定性研究现状及发展趋势[J]. 岩土力学, 32 (5): 1437～1451,1472.

赵炼恒,罗强,李亮,等. 2013. 基于失稳状态耗能最小原理的预应力锚索加固边坡稳定性上限解析[J]. 岩土力学, 34 (2): 426～432.

周欣华,饶锡保. 2000. 大岩淌滑坡稳定性研究[J]. 长江科学院院报, 17 (2): 41～43,47.

Relative Articles

Supplements(0)

Cited By

Proportional views