高土石不过水围堰边坡失稳风险分析

doi:10.13722/j.cnki.jrme.2014.0942

Abstract
Figure/Table
References (10)
Related Citation (0)

Download: PDF (560 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Cofferdam break caused by slope instability of high earth no-overflow-cofferdam can make a huge loss，there is important significance to carry out risk analysis. The uncertainty of hydrological，hydraulic and mechanical parameters of filling soil-stone were comprehensively considered to establish the slope instability risk model of high earth no-overflow-cofferdam based on the safety factor. Considering the change of critical sliding surface position in each simulation，layered-LHS sampling method was used to obtain the filling soil stone random sample in order to improve the sampling efficiency. Then，K-S test principle was used to judge the distribution types of the slope safety factor，and fitting optimization index was adopted to determine the optimal probability distribution，then the calculating process of risk model was given. Finally，a large hydropower project in the Southwest of China was calculated and analyzed. The results indicate that the proposed method effectively improves the efficiency of risk calculation，and the fitting effect of probability distribution is satisfactory，so that the risk can be estimated accurately and rationally，this paper provides a new idea and method for risk analysis of slope instability of high earth no-overflow-cofferdam.

Key words： slope engineering high earth no-overflow-cofferdam slope instability risk analysis safety coefficient layered-LHS method

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	ZHANG Chao

Cite this article:

ZHANG Chao. RISK ANALYSIS OF SLOPE INSTABILITY OF HIGH EARTH NO-OVERFLOW-COFFERDAM[J]. , 2015, 34(S2): 4157-4163.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.0942 OR https://rockmech.whrsm.ac.cn/EN/Y2015/V34/IS2/4157

[1] DELUZARCHE R，CAMBOU B. Discrete numerical modelling of rockfill dams[J]. International Journal for Numericaland Analytical Methods in Geomechanics，2006，30(11)：1 075–1 096.

[2] 李典庆，周创兵，陈益峰，等. 边坡可靠度分析的随机响应面法及程序实现[J]. 岩石力学与工程学报，2010，29(8)：1 513–1 523.(LI Dianqing，ZHOU Chuangbing，CHEN Yifeng，et al. Reliability analysis of slope using stochastic response surface method and code implementation[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(8)：1 513–1 523.(in Chinese))

[3] 钟登华，黄伟，张发瑜. 基于系统仿真的施工导流不确定性分析[J]. 天津大学学报，2006，(12)：1 441–1 445.(ZHONG Denghua，HUANG Wei，ZHANG Fayu. Uncertainty analysis for construction diversion based on system simulation[J]. Journal of Tianjin University，2006，(12)：1 441–1 445.(in Chinese))

[4] 张超，胡志根，刘全. 梯级施工导流系统整体风险分析[J]. 水科学进展，2012，23(3)：396–402.(ZHANG Chao，HU Zhigen，LIU Quan. Integrated risk analysis for the cascade of system diversion[J]. Advances of Water Science，2012，23(3)：396–402.(in Chinese))

[5] 王学武，党发宁，蒋力，等. 深厚复杂覆盖层上高土石围堰三维渗透稳定性分析[J]. 水利学报，2010，41(9)：1 074–1 078.(WANG Xuewu，DANG Fa¢ning，JIANG Li，et al. Three-dimensional seepage stability analysis of high earth-rock cofferdam built on complex layer of deep coverage[J]. Journal of Hydraulic Engineering，2010，41(9)： 1 074–1 078.(in Chinese))

[6] 罗立哲，胡志根，刘全，等. 土石围堰边坡稳定的多因素综合风险分析[J]. 岩土力学，2013，46(7)：617–622.(LUO Lizhe，HU Zhigen，LIU Quan，et al. Comprehensive risk analysis of rock-fill cofferdam slope stability considering multiple random factors[J]. Journal of Tianjin University，2013，46(7)：617–622.(in Chinese))

[7] 吴振君，王水林，葛修润. LHS方法在边坡可靠度分析中的应用[J]. 岩土力学，2010，31(4)：1 047–1 054.(WU Zhenjun，WANG Shuilin，GE Xiurun. Application of latin hypercube hypercube sampling sampling technique in to slope reliability analysis[J]. Rock and Soil Mechanics，2010，31(4)：1 047–1 054.(in Chinese))

[8] 舒继森，郭兵兵，张俊阳，等. 基于拟合优度指标评价的岩土参数概率分布研究[J]. 采矿与安全工程学报，2008，25(2)：197–201. (SHU Jisen，GUO Bingbing，ZHANG Junyang，et al. Research on probability distribution of parameters of rock and soil based on fitting optimization index[J]. Journal of Mining and Safety Engineering，2008，25(2)：197–201.(in Chinese))

[9] 胡志根，刘全，陈志鼎，等. 施工导流风险分析[M]. 北京：科学出版社，2010：153–185.(HU Zhigen， LIU Quan，CHEN Zhiding，et al. Risk analysis for construction diversion[M]. Beijing：Science Press，2010：153–185.(in Chinese))

[10] 张继周，缪林昌. 岩土参数概率分布类型及其选择标准[J]. 岩石力学与工程学报，2009，28(增2)：3 527–3 532.(ZHANG Jizhou，MIAO Linchang. Types and selection criteria of probability distribution of rock and soil parameters[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(Supp.2)：3 527–3 532.(in Chinese))