锦屏一级水电站地下厂房洞室群围岩时效变形研究

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Abstract Because of the huge scale and complicated geometry condition，the stress redistribution and surrounding rock deformation of underground powerhouse of Jinping I hydropower station perform strong time-dependence. The factors influencing surrounding rock?s time-dependent behaviour are concluded as the excavation process and rheology of rock mass；and the latter is studied a lot. The rheological theory for rock mass is briefly introduced and discussed at the beginning. Then，taking a typical monitoring section as an example，the monitoring data of the section are analyzed. Based on the analysis，some suggestions about support are provided. The monitoring data also imply that damage area of the caverns contributes the primary time-dependent deformation. Finally，the time-dependent back analysis method based on displacement is studied. The concrete idea and ways of numerical implement of this method are discussed in detail. And the method is applied to the typical section to testify its rationality. The research results show that the time-dependent back analysis method is effective to simulate the time-dependent behaviours of surrounding rock.

Key words： hydraulic engineering time-dependent deformation underground powerhouse rheology back analysis

Received: 25 February 2010

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https://rockmech.whrsm.ac.cn/EN/Y2011/V30/IS1/3081

[1] 孙钧. 岩石流变力学及其工程应用研究的若干进展[J]. 岩石力学与工程学报，2007，26(6)：1 081–1 106.(SUN Jun. Rock rheology mechanics and its advance in engineering applications[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(6)：1 081– 1 106.(in Chinese)) [2] LIN Q X，LIU Y M，THAM L G，et al. Time-dependent strength degradation of granite[J]. International Journal of Rock Mechanics and Mining Sciences，2009，46(7)：1 103–1 114. [3] 孙钧. 岩土材料流变及其工程应用[M]. 北京：中国建筑工业出版社，1999：4–42.(SUN Jun. Rock and soil rheology and its engineering applications[M]. Beijing：China Architecture and Building Press，1999：4–42.(in Chinese)) [4] 夏才初，王晓东，许崇帮，等. 用统一流变力学模型理论辨识流变模型的方法和实例[J]. 岩石力学与工程学报，2008，27(8)：1 594– 1 600.(XIA Caichu，WANG Xiaodong，XU Chongbang，et al. Method to identify rheological models by unified rheological model theory and case study[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(8)：1 594–1 600.(in Chinese)) [5] WU H C，HO C C. An investigation of transient creep by means of endochronic viscoplasticity and experiment[J]. Journal of Engineering Materials and Technology，1995，117(7)：206–268. [6] TSAI L S，HSIEH Y M，WENG M C，et al. Time-dependent deformation behaviors of weak sandstones[J]. International Journal of Rock Mechanics and Mining Sciences，2008，45(1)：144–154. [7] CHALLAMEL N，LANOS C，CASANDJIAN C. Creep damage modelling for quasi-brittle materials[J]. European Journal of Mechanics，2005，24(4)：593–613. [8] SAKURAI S，AKUTAGAWAB S，TAKEUCHI K，et al. Back analysis for tunnel engineering as a modern observational method[J]. Tunnelling and Underground Space Technology，2003，18(1)：185–196. [9] 杨林德，颜建平，王悦照，等. 围岩变形的时效特征与预测的研究[J]. 岩石力学与工程学报，2005，24(2)：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(2)：212–216.(in Chinese)) [10] 高玮，郑颖人. 岩体参数的进化反演[J]. 水利学报，2000，(8)：1–5.(GAO Wei，ZHENG Yingren. Back analysis of rock mass parameters based on evolutionary algorithm[J]. Journal of Hydraulic Engineering，2000，(8)：1–5.(in Chinese)) [11] 李仲奎，王爱民，莫兴华，等. 大型地下洞群时空双系列反馈分析[J]. 清华大学学报：自然科学版，1998，38(1)：50–54.(LI Zhongkui，WANG Aimin，MO Xinghua，et al. Time/space double series back analysis on large scale underground power house group caverns[J]. Journal of Tsinghua University：Science and Technology，1998，38(1)：50–54.(in Chinese)) [12] 李仲奎，周钟，汤雪峰，等. 锦屏一级水电站地下厂房洞室群稳定性分析与思考[J]. 岩石力学与工程学报，2009，28(11)：2 167–2 175.(LI Zhongkui，ZHOU Zhong，TANG Xuefeng，et al. Stability analysis and consideration of underground powerhouse caverns group of Jinping I hydropower station[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(11)：2 167–2 175.(in Chinese)) [13] 王安明，杨春和，陈剑文，等. 层状盐岩体非线性蠕变本构模型[J]. 岩石力学与工程学报，2009，28(增1)：2 708–2 714.(WANG Anming，YANG Chunhe，CHEN Jianwen，et al. Nonlinear creep constitutive model of bedded salt rock[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(Supp.1)：2 708–2 714.(in Chinese)) [14] 赵延林，曹平，文有道，等. 岩石弹黏塑性流变试验和非线性流变模型研究[J]. 岩石力学与工程学报，2008，27(3)：477–486. (ZHAO Yanlin，CAO Ping，WEN Youdao，et al. Elastoviso-plastic rheological experimental and nonlinear rheological model of rocks[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(3)：477–486.(in Chinese)) [15] 周钟，汤雪峰，廖成刚，等. 雅砻江锦屏一级水电站地下厂房洞室群施工期围岩稳定与支护设计报告[R]. 成都：中国水电工程顾问集团成都勘测设计研究院，2009.(ZHOU Zhong，TANG Xuefeng，LIAO Chenggang，et al. Report on the surrounding rock mass stability and support，main structures design for the underground powerhouse group caverns of Jinping I hydropower project located on Yalong River[R]. Chengdu：HydroChia Chengdu Hydroelectric Investigation and Design Institute，2009.(in Chinese)) [16] 刘少平. 锦屏I级水电站地下厂房洞室群施工监测反馈分析[硕士学位论文][D]. 北京：清华大学，2008.(LIU Shaoping. Back analysis based on monitoring results within construction period of Jinping I underground powerhouse caverns[M. S. Thesis][D]. Beijing：Tsinghua University，2008.(in Chinese)) [17] 李仲奎，徐千军，张志增，等. 雅砻江锦屏一级水电站地下厂房洞室群施工期快速监测与反馈分析，科研成果报告(1～9)[R]. 北京：清华大学，2007.(LI Zhongkui，XU Qianjun，ZHANG Zhizeng，et al. Scientific report on the fast measurement and back analysis for the underground powerhouse group caverns construction of Jinping I hydropower project located on Yalong River(No.1–No.9)[R]. Beijing：Tsinghua University，2007.(in Chinese)) [18] 王芝银，李云鹏. 岩体流变理论及其数值模拟[M]. 北京：科学出版社，2008：6–63.(WANG Zhiyin，LI Yunpeng. Rock mass rheological theory and its numerical simulation[M]. Beijing：Science Press，2008：6–63.(in Chinese))