大型洞室群稳定性分析与智能动态优化设计的数值仿真研究

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (1631 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要为实现数值仿真计算结果能准确反映大型洞室围岩实际力学行为，结合锦屏二级水电站地下厂房枢纽洞室群稳定性分析，在阐述大型地下洞室群数值仿真计算要点基础上，首先重点从岩体本构模型识别和力学参数识别2个方面详细介绍如何实现数值仿真计算的正确化。采用考虑空间分布协调的多元监测信息的6次岩体力学参数跟踪识别，获得锦屏二级地下厂房岩体的等效力学参数，从而通过参数反分析的方法在一定程度上证明岩体等效力学参数具有相对稳定性和可识别性。同时，结合数值模拟展现出的围岩应力、变形、塑性区等方面计算结果与工程岩体的具体地质条件和洞室群结构特点，论述锦屏二级水电站地下厂房上游高边墙变形较大、下游侧拱围岩与喷混凝土破坏、母线洞环状开裂、交叉洞口局部塌落等洞室围岩的变形与破坏机制。最后，结合锦屏二级地下厂房枢纽洞室群稳定性分析与实践的研究认识，对大型地下洞室修建中诸如结构面密集的高边墙支护问题、围岩应力集中区支护问题、工程区地下水对围岩稳定性影响等问题进行论述，并探讨如何通过数值仿真计算、现场监测与经验丰富的专业人员的有机结合来实现大型地下洞室群稳定性设计的科学化。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章

关键词 ：数值模拟, 大型洞室群, 参数跟踪识别, 稳定性分析, 围岩变形与破坏

Abstract：For purpose of accurately sameness between numerical simulation and practically mechanical behaviors of cavern，key principles of numerical simulation method for underground caverns are described firstly. Then，right ways of rock constitutive model recognition and parameter recognition are introduced in detail，taking Jinping II hydrpower station underground caverns as an example. On one hand，model recognition is carried out and checked from some aspects，including failure mode analysis of rock，deterioration rule of mechanical parameters，fitting of testing curves，simulation of testing tunnel，etc. On the other hand，six times dynamically intelligent back analysis of rock mechanical parameters considering spatial distribution multi-information have been done，which provide actually equivalent parameters for 3D simulation. With reasonable constitutive model and exact parameters，the calculation result of 3D numerical simulation about caverns excavation exposes reasonable deformation，redistributed stress and plastic zone of surrounding rock，which can be used to explain special mechanical behaviors of surrounding rock，such as large deformation of powerhouse?s upstream，failure of rock and shotcrete，circularity cracks of busbar tunnel，local slumping of fork rock，etc. What?s more，based on the accumulation and experiences of Jinping II hydropower station underground cavern?s study，some supporting issues in design，such as high sidewall with dense joint，position with concentrated stress and groundwater in surrounding rock，are also discussed，which provide legible instance and cues for study and design optimization of large underground engineering.

Key words： numerical simulation large cavern group dynamical recognition of parameters stability analysis deformation and failure of surrounding rock

收稿日期: 2010-09-25

引用本文:

江权1，冯夏庭1，向天兵1，周辉1，陈建林2，补约依呷2，侯靖2. 大型洞室群稳定性分析与智能动态优化设计的数值仿真研究[J]. 岩石力学与工程学报, 2011, 30(3): 524-539.
JIANG Quan1，FENG Xiating1，XIANG Tianbing1，ZHOU Hui1，CHEN Jianlin2，BU Yueyixia2，HOU Jing2. NUMERICAL SIMULATION METHOD FOR STABILITY ANALYSIS AND INTELLIGENT AND DYNAMIC OPTIMIZATION DESIGN OF LARGE CAVERN GROUP. , 2011, 30(3): 524-539.

链接本文:

http://www.rockmech.org/CN/Y2011/V30/I3/524

[9]	江权，冯夏庭，向天兵. 基于强度折减原理的地下洞室群整体安全系数计算方法探讨[J]. 岩土力学，2009，30(8)：2 483-2 488. (JIANG Quan，FENG Xiating，XIANG Tianbing. Discussion on method for calculating general safety factor of underground caverns based on strength reduction theory[J]. Rock and Soil Mechanics，2009，30(8)：2 483-2 488.(in Chinese)) " target="_blank">
[13]	伍法权. 我国岩土与工程研究的现状与展望——第三届全国岩土与工程大会学术总结[J]. 工程地质学报，2009，17(4)：463-468.(WU Faquan. The state of the art and expectation of geoengineering in China—a summary for the 3th China national geoengineering conference[J]. Journal of Engineering Geology，2009，17(4)：463-468.(in Chinese))
[15]	卓加寿，邵国建，陈振雷. 工程稳定问题中确定滑坍面、滑向与安全度的干扰能量法[J]. 水利学报，1997，(8)：80-84.(ZHUO Jiashou，SHAO Guojian，CHEN Zhenlei. Disturbing energy method for determining the sliding face and direction and the safety coefficient of engineering stability[J]. Journal of Hydraulic Engineering，1997，(8)：80-84.(in Chinese)) " target="_blank">
[17]	苏国韶，冯夏庭，江权. 高地应力下地下工程稳定性分析与优化的局部能量释放率新指标研究[J]. 岩石力学与工程学报，2006，25(12)：1 741-1 756.(SU Guoshao，FENG Xiating，JIANG Quan. Study on new index of local energy release rate of stability analysis and optimal design of underground rock mass engineering with high geostress[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(12)：1 741-1 756.(in Chinese)) " target="_blank">
[19]	孙钧. 岩土力学与地下工程结构分析计算的若干进展[J]. 力学季刊，2005，26(3)：330-339.(SUN Jun. Recent development on the computation techniques of geomechanics and underground structures[J]. Chinese Quarterly of Mechanics，2005，26(3)：330-339.(in Chinese)) " target="_blank">
[21]	冯夏庭，江权，向天兵，等. 大型洞室群智能动态设计方法[J]. 岩石力学与工程学报，2011，30(3)：433-448.(FENG Xiating，JIANG Quan，XIANG Tianbing，et al. Intelligent and dynamic design methodology of large cavern group and its practice[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(3)：433-448.(in Chinese))
[23]	HAJIABDOLMAJID V，KAISER P K. Brittleness of rock and stability assessment in hard rock tunneling[J]. Tunnelling and Underground Space Technology，2003，18(1)：35-48. " target="_blank">
[25]	江权，冯夏庭，陈国庆. 考虑高地应力下围岩劣化的硬岩本构模型研究[J]. 岩石力学与工程学报，2008，27(1)：144-152.(JIANG Quan，FENG Xiating，CHEN Guoqing. Study on constitutive model of hard rock considering surrounding rock deterioration under high geostress[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(1)：144-152.(in Chinese))
[26]	江权. 高地应力下硬岩弹脆塑性劣化模型与大型地下洞室群围岩稳定性研究[博士学位论文][D]. 武汉：中国科学院武汉岩土力学研究所，2007.(JIANG Quan. Study on model and stability of surrounding rock of large underground caverns under high geo-stress condition[Ph. D. Thesis][D]. Wuhan：Institute of Rock and Soil Mechanics，Chinese Academy of Sciences，2007.(in Chinese)) " target="_blank">
[28]	杨志法，熊顺成，王存玉，等. 关于位移反分析的某些考虑[J]. 岩石力学与工程学报，1995，14(1)：11-16.(YANG Zhifa，XIONG Shuncheng，WANG Cunyu，et al. Some consideration of the back analysis from displacements[J]. Chinese Journal of Rock Mechanics and Engineering，1995，14(1)：11-16.(in Chinese))
[30]	杨林德，颜建平，王悦照，等. 围岩变形的时效特征与预测[J]. 岩石力学与工程学报，2005，24(1)：212-216.(YANG Linde，YAN Jianping，WANG Yuezhao，et al. Study on time-dependent properties and deformation prediction of surrounding rock[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(1)：212-216.(in Chinese)) " target="_blank">
[32]	FENG X T，KATSUYAMA K，WANG Y J，et al. A new direction：intelligent rock mechanics and rock engineering[J]. International Journal of Rock Mechanics and Mining Sciences，1997，34(1)：135-141. " target="_blank">
[34]	江权，冯夏庭，陈国庆，等. 高地应力条件下大型地下洞室群稳定性综合研究[J]. 岩石力学与工程学报，2008，27(增2)：3 768-3 777.(JIANG Quan，FENG Xiating，CHEN Guoqing，et al. Stability study of large underground caverns under high geostress[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(Supp.2)：3 768-3 777.(in Chinese)) " target="_blank">
[36]	ALEJANO L R，ALONSO E. Considerations of the dilatancy angle in rocks and rock masses[J]. International Journal of Rock Mechanics and Mining Sciences，2005，42(4)：481-507. " target="_blank">
[38]	江权，冯夏庭，苏国韶，等. 高地应力下拉西瓦水电站地下洞室群稳定性分析[J]. 水力发电学报，2010，29(5)：132-140.(JIANG Quan，FENG Xiating，SU Guoshao，et al. Stability analysis of Laxiwa hydropower station?s large underground caverns under high geostress condition[J]. Journal of Hydroelectric Engineering，2010，29(5)：132-140.(in Chinese)) " target="_blank">
[41]	曹平，样慧，江学良，等. 水岩作用下岩石亚临界裂纹的扩展规律[J]. 中南大学学报(自然科学版)，2010，41(2)：649-654.(CAO Ping，YANG Hui，JIANG Xueliang，et al. Subcritical crack growth of rock during water-rock interaction[J]. Journal of Central South University(Science and Technology)，2010，41(2)：649-654.(in Chinese)) " target="_blank">
[3]	王克忠，蔡美峰. 西龙池地下洞室围岩的现场监测及其稳定性分析[J]. 岩石力学与工程学报，2005，24(增2)：5 956-5 960.(WANG Kezhong，CAI Meifeng. In-situ monitoring and stability analysis of surrounding rock mass of Xilongchi underground cavern[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(Supp.2)：5 956-5 960.(in Chinese)) " target="_blank">
[8]	瞿万波，刘新荣，傅晏，等. 洞桩法大断面群洞交叉隧道初衬数值模拟[J]. 岩土力学，2009，30(9)：2 799-2 805.(QU Wanbo，LIU Xinrong，FU Yan，et al. Numerical simulation of preliminary lining of large section crossing tunnels constructed with PBA method[J]. Rock and Soil Mechanics，2009，30(9)：2 799-2 805.(in Chinese)) " target="_blank">
[12]	王思敬. 中国岩石力学与工程的世纪成就与历史使命[J]. 岩石力学与工程学报，2003，22(6)：867-871.(WANG Sijing. Century achievements and new historical mission of rock mechanics and engineering in China[J]. Chinese Journal of Rock Mechanics and Engineering，2003，22(6)：867-871.(in Chinese))
[5]	王克忠，李仲奎. 抽水蓄能电站地下洞室群层状围岩稳定性综合分析研究[J]. 水力发电学报，2008，27(5)：68-72.(WANG Kezhong，LI Zhongkui. Comprehensive stability analysis on layer rock around subterranean chambers of pumped storage hydropower station[J]. Journal of Hydroelectric Engineering，2008，27(5)：68-72.(in Chinese)) " target="_blank">
[39]	魏进兵，邓建辉，王俤剀，等. 锦屏一级水电站地下厂房围岩变形与破坏特征分析[J]. 岩石力学与工程学报，2010，29(6)：1 198- 1 207.(WEI Jinbing，DENG Jianhui，WANG Dikai，et al. Characterization of deformation and fracture for rock mass in underground powerhouse of Jinping I hydropower station[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(6)：1 198- 1 207.(in Chinese)) " target="_blank">
[1]	肖明. 地下洞室施工开挖三维动态过程数值模拟分析[J]. 岩土工程学报，2000，22(4)：422-426.(XIAO Ming. Three-dimensional numerical model of construction process for underground opening[J]. Chinese Journal of Geotechnical Engineering，2000，22(4)：422-426.(in Chinese)) " target="_blank">
[2]	朱维申，李术才，陈卫忠，等. 清江水布垭工程地下厂房围岩锚固方案优化研究[J]. 岩石力学与工程学报，2003，22(增1)：2 127-2 131.(ZHU Weisheng，LI Shucai，CHEN Weizhong，et al. Optimazation of reinforcing scheme for underground powerhouse of Shuibuya project on Qingjiang River[J]. Chinese Journal of Rock Mechanics and Engineering，2003，22(Supp.1)：2 127-2 131.(in Chinese)) " target="_blank">
[4]	张志强，李宁，陈方方，等. 不同分布距离的软弱夹层对洞室稳定性的影响研究[J]. 岩土力学，2007，28(7)：1 363-1 368.(ZHANG Zhiqiang，LI Ning，CHEN Fangfang，et al. A study of influence of weak interlayers distributed at different intervals on opening stability[J]. Rock and Soil Mechanics，2007，28(7)：1 363-1 368.(in Chinese)) " target="_blank">
[6]	丁秀丽，董志宏，卢波，等. 陡倾角沉积岩地层中大型地下厂房开挖围岩变形失稳特征和反馈分析[J]. 岩石力学与工程学报，2008，27(10)：2 019-2 026.(DING Xiuli，DONG Zhihong，LU Bo，et al. Deformation characteristics and feedback analysis of surrounding rock of large underground powerhouses excavated in steeply dipped sedimentary rock strate[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(10)：2 019-2 026.(in Chinese)) " target="_blank">
[7]	张占荣，盛谦，冷先伦，等. 岩滩水电站地下厂房洞室群围岩稳定性分析[J]. 金属矿山，2008，(6)：20-23.(ZHANG Zhanrong，SHENG Qian，LENG Xianlun，et al. Stability analysis of surrounding rock of underground powerhouse group in Yantan hydropower station[J]. Metal Mine，2008，(6)：20-23.(in Chinese)) " target="_blank">
[10]	聂卫平，徐卫亚，周先齐，等. 向家坝水电站地下厂房围岩稳定的黏弹塑性有限元分析[J]. 岩土力学，2010，31(4)：1 276-1 282.(NIE Weiping，XU Weiya，ZHOU Xianqi，et al. Viscoelasto-plastic finite element analysis of stability of surrounding rock for underground powerhouse of Xiangjiaba hydropower station[J]. Rock and Soil Mechanics，2010，31(4)：1 276-1 282.(in Chinese)) " target="_blank">
[11]	谢和平，刘夕才，王金安. 关于21世纪岩石力学发展战略的思考[J]. 岩土工程学报，1996，18(4)：98-102.(XIE Heping，LIU Xicai，WANG Jin?an. Strategic prospect of rock mechanics? development in 21st century[J]. Chinese Journal of Geotechnical Engineering，1996，18(4)：98-102.(in Chinese))
[14]	孙钧，刘保国. 岩石力学问题的若干进展[J]. 岩土力学，1997，18(增)：1-5.(SUN Jun，LIU Baoguo. Several developments in rock mechanics[J]. Rock and Soil Mechanics，1997，18(Supp.)：1-5.(in Chinese)) " target="_blank">
[16]	杨强，薛利军，王仁坤，等. 岩体变形加固理论及非平衡态弹塑性力学[J]. 岩石力学与工程学报，2005，24(20)：3 704-3 712. (YANG Qiang，XUE Lijun，WANG Renkun，et al. Reinforcement theory considering deformation mechanism of rock mass and non- equilibrium elastoplastic mechanics[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(20)：3 704-3 712.(in Chinese)) " target="_blank">
[18]	张传庆，周辉，冯夏庭. 基于破坏接近度的岩土工程稳定性评价[J]. 岩土力学，2007，28(5)：888-894.(ZHANG Chuanqing，ZHOU Hui，FENG Xiating. Stability assessment of rock mass engineering based on failure approach index[J]. Rock and Soil Mechanics，2007，28(5)：888-894.(in Chinese)) " target="_blank">
[20]	任建喜，葛修润. 单轴压缩岩石损伤演化细观机制及其本构模型研究[J]. 岩石力学与工程学报，2001，20(4)：425-431.(REN Jianxi，GE Xiuren. Study of rock meso-damage evolution law and its constitutive model under uniaxial compression loading[J]. Chinese Journal of Rock Mechanics and Engineering，2001，20(4)：425-431.(in Chinese))
[22]	王思敬. 论岩石的地质本质性及其岩石力学演绎[J]. 岩石力学与工程学报，2009，28(3)：433-450.(WANG Sijing. Geological nature of rock and its deduction for rock mechanics[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(3)：433-450.(in Chinese))
[24]	尤明庆，苏承东，徐涛. 岩石试样的加载卸载过程及杨氏模量[J]. 岩土工程学报，2001，23(5)：588-592.(YOU Mingqing，SU Chengdong，XU Tao. Loading or unloading process in axial direction and Young?s modulus of rock specimen[J]. Chinese Journal of Geotechnical Engineering，2001，23(5)：588-592.(in Chinese))
[27]	江权，冯夏庭，陈建林，等. 锦屏二级水电站厂址区域三维地应力场非线性反演[J]. 岩土力学，2008，29(11)：3 003-3 010.(JIANG Quan，FENG Xiating，CHEN Jianlin，et al. Nonlinear inversion of 3D initial geostress field in Jinping II hydropower station region[J]. Rock and Soil Mechanics，2008，29(11)：3 003-3 010.(in Chinese)) " target="_blank">
[29]	冯夏庭. 智能岩石力学[M]. 北京：科学出版社，2000.(FENG Xiating. Introductin to intellinget rock mechanics[M]. Beijing：Science Press，2000.(in Chinese)) " target="_blank">
[31]	朱维申，李术才，陈卫忠. 节理岩体破坏机制和锚固效应及工程应用[M]. 北京：科学出版社，2002.(ZHU Weishen，LI Shucai，CHEN Weizhong. Failure mechanical and anchoring effect of joint rock and application in engineering[M]. Beijing：Science Press，2002.(in Chinese)) " target="_blank">
[33]	潘家铮. 岩石力学与反馈设计[J]. 水电站设计，1994，10(3)：3-10.(PAN Jiazheng. Rock mechanics and feedback design[J]. Design of Hydroelectric Power Station，1994，10(3)：3-10.(in Chinese)) " target="_blank">
[35]	HALLBAUER D K，WAGNER H，COOK N G W. Some observations concerning the microscopic and mechanical behavior of quartzite specimens in stiff[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1973，10(1)：37-86. " target="_blank">
[37]	程良奎. 岩石加固实用技术[M]. 北京：地震出版社，1994.(CHENG Liangkui. Practical reinforcement technique of rock[M]. Beijing：Earthquake Press，1994.(in Chinese)) " target="_blank">
[40]	卢应发，孙慧，李建林，等. 水-岩石相互作用力学参数的探讨[J]. 岩石力学与工程学报，2009，28(10)：1 995-2 005.(LU Yingfa，SUN Hui，LI Jianlin，et al. Investigation on mechanical parameters of water-rock interaction[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(10)：1 995-2 005.(in Chinese)) " target="_blank">