基于三维有限差分法的小湾拱坝施工步模拟及极限承载分析

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

Download: PDF (3068 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract To study the final failure mechanism of high arch dam and its safety factor，it's necessary to deeply analyze the ultimate bearing capacity of Xiaowan arch dam which is a typical project. Based on the three dimensional explicit three dimensional finite difference method of FLAC3D，this article accurately simulates the process of the dam construction and water storage.On that base，by using the strength accumulation coefficient method and over loading coefficient method，the ultimate bearing capacity results of Drucker-Prager criterion and Mohr-Coulomb criterion which are all with a tension cutoff are analyzed and compared with each other. Combined with the specific failure deformation，by methods of observing the connected plastic zone in the evolutionary process and recording the sudden change of the dam displacement，the gradual failure mode and the final safety factor of Xiaowan arch dam are found. The reason why the safety factors are significantly different under the two criterions is analyzed，it’s also proposed that the Mohr-Coulomb criterion is better than the Drucker-Prager criterion in the evaluation of the ultimate bearing capacity of arch dam. Finally，a sensitivity analysis on the dilatancy angle and tensile strength is made，and some useful conclusions are found.

Key words： hydraulic engineering high arch dam construction process failure mode ultimate bearing capacity

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	GAN Haikuo1
	2
	LAI Guowei1
	LI Yesheng3

Cite this article:

GAN Haikuo1,2,LAI Guowei1, et al. CONSTRUCTION PROCESS SIMULATION AND ULTIMATE BEARING CAPACITY ANALYSIS OF XIAOWAN ARCH DAM BY 3D FINITE DIFFERENCE METHOD[J]. , 2013, 32(s2): 3918-3927.

URL:

https://rockmech.whrsm.ac.cn/EN/Y2013/V32/Is2/3918

[1] 朱伯芳，张超然. 高拱坝结构安全关键技术研究[M]. 北京：中国水利水电出版社，2010：301–302.(ZHU Baifang，ZHANG Chaoran. Researches on the structural safety of high concrete arch dams[M]. Beijing：China Water Power Press，2010：301–302.(in Chinese))

[2] 张林，陈建叶. 水工大坝与地基模型试验及工程应用[M]. 成都：四川大学出版社，2009：22–24.(ZHANG Lin，CHEN Jianye. The engineering application of model text about hydraulic dams and foundation[M]. Chengdu：Sichuan University Press，2009：22–24.(in Chinese))

[3] 周维垣，林鹏，杨若琼，等. 高拱坝地质力学模型试验方法与应用[M]. 北京：中国水利水电出版社，2008：1–8 (ZHOU Weiyuan，LIN Peng，YANG Ruoqiong，et al. The geomechanical model test and its application to high arch dam[M]. Beijing：China Water Power Press，2008：1–8.(in Chinese))

[4] 金峰，胡卫，张楚汉，等. 基于工程类比的小湾拱坝安全评价[J]. 岩石力学与工程学报，2008，29(10)：2 027–2 033.(JIN Feng，HU Wei，ZHANG Chuhan，et al. Analogical project comparative study of safety evaluation for Xiaowan arch dam[J]. Chinese Journal of Rock Mechanics and Engineering，2008，29(10)：2 027–2 033.(in Chinese))

[5] 潘坚文，金峰，徐艳杰，等. 拱坝坝踵开裂探讨及极限承载力分析[J]. 水力发电学报，2010，(3)：148–153.(PAN Jianwen，JIN Feng，XU Yanjie，et al. Analysis of DAM heel cracking and ultimate bearing capacity of arch dam[J]. Journal of Hydroelectric Engineering，2010，(3)：148–153.(in Chinese))

[6] 杨剑，金峰，王进廷，等. 二滩拱坝极限承载力分析[J]. 清华大学学报：自然科学版，2009，(9)：56–59.(YANG Jian，JIN Feng，WANG Jinting，et al. Analysis of ultimate bearing capacity of Ertan arch dam[J]. Journal of Tsinghua University：Science and Technology，2009，(9)：56–59.(in Chinese))

[7] 周伟，常晓林，唐忠敏，等. 溪洛渡高拱坝渐进破坏过程仿真分析与稳定安全度研究[J]. 四川大学学报：工程科学版，2002，34(4)：46–50.(ZHOU Wei，CHANG Xiaolin，TANG Zhongmin，et al. Research of gradually destruction process simulartion analysis and stabilization safety on Xiluodu high arch dam[J]. Journal of Sichuan University：Engineering Science，2002，34(4)：46–50.(in Chinese))

[8] 曾懿. 混凝土拱坝三维非线性有限元分析及极限承载力计算研究[硕士学位论文][D]. 南昌：南昌大学，2005.(ZENG Yi. The three- dimension nonlinear finite element analysis and ultimate load calculation of concrete arch dam[M. S. Thesis][D]. Nanchang：Nanchang University，2005.(in Chinese))

[9] 杨令强. 高拱坝破坏分析研究综述[J]. 水电能源科学，2007，(2)：35–38.(YANG Lingqiang. Overview of high arch dam cracking and safety evaluation[J]. Water Resources and Power，2007，(2)：35–38. (in Chinese))

[10] 王均星，张优秀，王汉辉. 高拱坝承载能力研究[J]. 武汉大学学报：工学版，2004，37(1)：27–31.(WANG Junxing，ZHANG Youxiu，WANG Hanhui. Research on load bearing capacity of high arch dam[J]. Engineering Journal of Wuhan University，2004，37(1)：27–31.(in Chinese))

[11] 任青文. 高拱坝安全性研究现状及存在问题分析[J]. 水利学报，2007，38(9)：1 023–1 029.(REN Qingwen. Status quo and problems on safety analysis of high arch dam[J]. Journal of Hydraulic Engineering，2007，38(9)：1 023–1 029.(in Chinese))

[12] Itasca Consulting Group，Inc.. fast language anslysis of continua in three dimension[R]. [S. l.]：Itasca Consulting Consulting Group，Inc.，1997.

[13] 王金安，王树仁，冯锦艳. 岩土工程数值计算方法实用教程[M]. 北京：科学出版社，2010：110–118.(WANG Jinan，WANG Shuren，FENG Jinyan. The practical tutorial of geotechnical engineering numerical methods[M]. Beijing：Science Press，2010：110–118.(in Chinese))

[14] 廖秋林，曾钱帮，刘彤，等. 基于ANSYS平台复杂地质体FLAC^3D模型的自动生成[J]. 岩石力学与工程学报，2005，24(6)：1 010–1 013.(LIAO Qiulin，ZENG Qianbang，LIU Tong，et al. Automatic model generation of complex geologic body with FLAC^3D based on ansys platform[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(6)：1 010–1 013.(in Chinese))

[15] 过镇海. 混凝土的强度和变形实验基础和本构关系[M]. 北京：清华大学出版社，1997：171–173.(GUO Zhenhai. The strength and deformation of concrete—experimental foundation and constitutive relationship[M]. Beijing：Tsinghua University Press，1997：171–173.(in Chinese))