断续节理扩展算法在隧道围岩稳定分析中的应用

王华牢; 许崇帮; 夏才初

断续节理扩展算法在隧道围岩稳定分析中的应用 English Version

1. 交通运输部公路科学研究院，北京100088; 2. 西安理工大学水利水电学院，陕西西安 700048; 3. 同济大学地下建筑与工程系，上海 200092

基金项目: 研究所基金项目（ 2011 ）

详细信息

作者简介:
王华牢 (1961 – ) ，男，陕西蒲城人，教授级高级工程师，主要从事隧道工程设计。

中图分类号: TU457
计量
- 文章访问数: 1309
- HTML全文浏览量: 1
- PDF下载量: 709
出版历程
- 收稿日期: 2010-10-25
- 发布日期: 2012-02-19

Application of fracturing algorithm of intermittent joints in stability of surrounding rock

1. Research Institute of Highway of Ministry of Transport, Beijing 100088, China; 2. School of Water Resources and Hydraulic Power, Xi’an University of Technology, Xi'an 710048, China ; 3. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China

摘要

摘要: 利用虚节理力学性质参数弱化函数，在 Jennings 强度准则基础上提出了应用于非连续变形分析计算的断续节理强度形式；然后，将虚节理力学性质参数弱化规律和断续节理强度表达式运用于非连续变形分析计算程序中，实现了对断续节理扩展过程的模拟算法；并通过剪切试验计算结果与室内试验结果的比较，验证了该算法的正确性。利用该算法对节理岩体中金鸡山隧道进行了围岩稳定性分析，分析结果客观反映了节理展布特征对隧道围岩的变形影响和节理岩体隧道围岩位移分布特征，表明了断续节理扩展算法在隧道围岩稳定性分析方面具有良好的应用前景。
- 断续节理 /
- 隧道工程 /
- 扩展算法 /
- 稳定分析
Abstract: According to the phenomenon of attenuation of mechanical parameters in rock failure, the strength criterion for intermittence jointed rock mass is proposed by use of the attenuation formula of virtual joint mechanical parameters based on the Jennings Criterion. The strength criterion for intermittent jointed rock mass and the attenuation formula are applied into the DDA code to complete the computation program of analyzing the initiation, extending and connecting of rock fractures, and then the validity of algorithm is verified by making comparison between the computed results and the shear test ones. At last, this algorithm is employed to analyze the stability of surrounding rock of Jingjishan Tunnel, which is a multiple-arch tunnel with eight traffic lanes. The simulated results show the influences of joint distribution features on the surrounding deformation and give the characters of surrounding displacement. It is shown that the fracturing algorithm of intermittent jointed rock mass is capable of analyzing the stability of tunnels.
- intermittent joint /
- tunnel engineering /
- fracturing algorithm /
- stability analysis

HTML全文

参考文献(10)

[1]	刘远明 . 基于直剪试验的非贯通节理岩体扩展贯通研究 [D]. 上海 : 同济大学 , 2007. ( LIU Yuan-ming. Study on failure models and strength of rockmass containing discontinuous joints in direct shear[D]. Shanghai: Tongji University, 2007. (in Chinese))
[2]	夏才初 , 肖维民 , 丁增志 . 非贯通节理 Jennings 强度准则的岩桥弱化和节理面起伏角修正 [J]. 岩石力学与工程学报 , 2010, 29 (3): 485 – 492. (XIA Cai-chu, XIAO Wei-min, DING Zeng-zhi. Modification of Jennings strength criterion for intermittent joints considering rock bridge weakening and joint surface undulating angle[J]. Chinese Journal of Rock Mechanics and Engineering, 2010, 29 (3): 485 – 492. (in Chinese))
[3]	朱维申 , 梁作元 , 冯光北 , 等 . 节理岩体强度特性的物理模拟及其强度预测分析 [C]// 计算机方法在岩石力学及工程中的应用国际学术讨论文集 . 武汉 : 武汉测绘科技大学出版社 , 1994: 486 – 493. (ZHU Wei-shen, LIANG Zuo-yuan, FENG Guang-bei, et al. Physical simulation and prediction analysis of the strength characteristics of jointed rockmass[C]// Proceedings of International Symposium On Computational Methods Applied In Rock Mechanics And Egineerings. Wuhan: Wuhan Surveying University Press, 1994: 486 – 893. (in Chinese))
[4]	梁作元 , 朱维申 . 压剪应力作用下含共面闭合节理岩石材料的剪切破坏准则探讨 [C]// 中国青年学者岩土工程力学及其应用讨论会议论文集 . 北京 : 科学出版社 , 1994: 470 – 474. (LIANG Zuo-yuan, ZHU Wei-shen. Study on the failure criterion of rock materials containing coplanar close intermittent joints under compress ion–shear stress[C]// Proceedings of Symposium For Chinese Young Scholars On Geotechnical Mechanics And Its Applications. Beijing: Science Press, 1994: 470 – 474. (in Chinese))
[5]	周小平 , 王建华 , 哈秋舲 . 压剪应力作用下断续节理岩体的破坏分析 [J]. 岩石力学与工程学报 , 2003, 22 (9): 1437 – 1440. (ZHOU Xiao-ping, WANG Jian-hua, HA Qiu-ling. Failure analysis of intermittent jointed rocks under compression-shear stress[J]. Chinese Journal of Rock Mechanics and Engineering, 2003, 22 (9): 1437 – 1440. (in Chinese))
[6]	SHI G-H. Discontinuous deformation analysis – a newmodel for the statics and dynamics of block systems[D]. Berkley: University of California, 1988.
[7]	石根华 . 数值流行方法与非连续变形分析 [M]. 裴觉民 , 译 . 北京 : 清华大学出版社 , 1997. (SHI Gen-hua. Numerical manifold method (NMM) and discontinuous deformation analysis(DDA)[M]. PEI Jue-min, trans. Beijing: Tsinghua University Press, 1997. (in Chinese))
[8]	XIA Cai-chu, XU Chong-bang, ZHAO Xu. Application of strength reduction DDA method in stability analysis of mountain tunnel[C]// Proceeding of the 9th International Conference on Analysis of Discontinuous Deformation. Singapore: Nanyang Technological University, 2009: 189 – 203.
[9]	STIMPSON B. Failure of slope containing discontinuous planar joints[C]// Proc 19th U S Symp on Rock Mechanics. 1978: 296 – 300.
[10]	KE T C. Simulated testing of two dimensional heterogeneous and discontinuous rock masses using discontinuous deformation analysis[D]. Berkeley: University of California, 1993.

施引文献

资源附件(0)

计量

文章访问数: 1309
HTML全文浏览量: 1
PDF下载量: 709
被引次数: 0

断续节理扩展算法在隧道围岩稳定分析中的应用 English Version

作者简介: 王华牢 (1961 – ) ，男，陕西蒲城人，教授级高级工程师，主要从事隧道工程设计。

计量

出版历程

Application of fracturing algorithm of intermittent joints in stability of surrounding rock

计量

出版历程

目录

作者简介:
王华牢 (1961 – ) ，男，陕西蒲城人，教授级高级工程师，主要从事隧道工程设计。