基于层状岩体卸荷演化的锦屏I级地下厂房洞室群稳定性与调控

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (1212 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要锦屏I级水电站地下厂房洞室群开挖支护设计与施工控制以及整体稳定性等问题十分突出，施工期已经明显呈现出高应力、低强度应力比条件下围岩的卸荷变形与破坏特征。根据锦屏I级地下厂房层状岩体力学特性，采用考虑卸荷演化的层状岩体本构模型及其数值模拟方法，反演获得初始地应力场以及层状岩体力学参数。在此基础上，对锦屏I级地下厂房洞室群进行三维数值模拟分析，获得一些对高应力下锦屏I级水电站大型地下洞室群施工期围岩稳定与支护安全等方面的认识，提出洞室群围岩应力释放调控、松弛区承载力调控以及变形开裂调控等适时工程调控措施与建议。研究结果表明，洞室群整体开挖完成后的现场监测结果和围岩稳定现状等证实了所提出的认识和调控措施的合理性，表明层状岩体本构模型及其数值模拟分析方法能够较好地反映高应力下层状岩体中大型地下洞室群施工期的工作性状。

	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 ：岩石力学, 锦屏I级水电站, 地下洞室群, 高地应力, 低强度应力比, 层状岩体本构模型, 卸荷演化, 工程调控

Abstract：The problems including support design，construction control and overall stability of surrounding rock are very serious in the underground caverns of Jinping I hydropower station. The unloading deformation and failure characteristics of surrounding rock under the conditions of high stress and low strength stress ratio have been clearly shown during the excavation. According to the mechanical characteristics of layered rock，the initial stress field and mechanical parameters of layered rock are obtained by inversion analysis considering the unloading mechanical evolution of layered rock and its numerical simulation method. Based on these，the three- dimensional numerical simulation for the underground caverns of Jinping I hydropower station is carried out；and some opinions of surrounding rock stability and support safety under high stress are obtained. The right engineering control suggestions including stress release control，capacity control of damaged zones and deformation cracking control，and so on，are put forward. The results show that the rationality of raised opinions and proposed control measures are confirmed by in-situ monitoring results of underground caverns and stability status of surrounding rock. It is shown that the proposed layered rock constitutive model and its numerical simulation method can reflect favorably the working behaviors of layered rock mass in the construction of large underground caverns in condition of high stress.

Key words： rock mechanics Jinping I hydropower station underground caverns high geostress low strength stress ratio layered rock mass constitutive model unloading evolution engineering control measures

收稿日期: 2011-03-09

引用本文:

黄书岭1，王继敏2，丁秀丽1，邬爱清1，段绍辉2，卢波1，胡志刚2. 基于层状岩体卸荷演化的锦屏I级地下厂房洞室群稳定性与调控[J]. 岩石力学与工程学报, 2011, 30(11): 2203-2216.
HUANG Shuling1，WANG Jimin2，DING Xiuli1，WU Aiqing1，DUAN Shaohui2，LU Bo1，HU Zhigang2. STABILITY AND CONTROL FOR UNDERGROUND CAVERNS OF JINPING I HYDROPOWER STATION BASED ON UNLOADING EVOLUTION OF LAYERED ROCKMASS. , 2011, 30(11): 2203-2216.

链接本文:

https://rockmech.whrsm.ac.cn/CN/Y2011/V30/I11/2203

[1]	董学晟，田野，邬爱清. 水工岩石力学[M]. 北京：中国水利水电出版社，2004：238.(DONG Xuesheng，TIAN Ye，WU Aiqing. Rock mechanics in hydraulic engineering[M]. Beijing：China Water Power Press，2004：238.(in Chinese)) " target="_blank">
[2]	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 a1. Deformation characteristics and feedback analysis of surrounding rock of large underground powerhouses excavated in steeply dipped sedimentary rock strata[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(10)：2 019-2 026.(in Chinese)) " target="_blank">
[3]	邬爱清，杨启贵，周火明，等. 清江水布垭枢纽地下厂房岩石力学研究[J]. 长江科学院院报，2006，23(4)：1-7.(WU Aiqing，YANG Qigui，ZHOU Huoming，et al. Rock mechanical study of underground powerhouse in Shuibuya project[J]. Journal of Yangtze River Scientific Research Institute，2006，23(4)：1-7.(in Chinese))
[4]	丁秀丽，盛谦，邬爱清，等. 水布垭枢纽地下厂房施工开挖与加固的数值模拟[J]. 岩石力学与工程学报，2002，21(增)：2 162- 2 167.(DING Xiuli，SHENG Qian，WU Aiqing，et al. Numerical modeling on the excavation and reinforcement for the underground powerhouse in the Shuibuya project[J]. Chinese Journal of Rock Mechanics and Engineering，2002，21(Supp.)：2 162-2 167.(in Chinese)) " target="_blank">
[5]	SITHARAM T G，SRIDEVI J，SHIMIZU N. Practical equivalent continuum characterization of jointed rock masses[J]. International Journal of Rock Mechanics and Mining Sciences，2001，38(3)：437-448. " target="_blank">
[6]	肖明，王阳雪. 陡倾角层状岩体中地下厂房洞室围岩稳定性分析[J]. 岩石力学与工程学报，2002，21(增)：2 057-2 060.(XIAO Ming，WANG Yangxue. Stability analysis of underground houses in the rock masses with steep obliquity[J]. Chinese Journal of Rock Mechanics and Engineering，2002，21(Supp.)：2 057-2 060.(in Chinese)) " target="_blank">
[7]	陈仲先，汤雷. 高地应力大型地下洞室的位移和锚杆应力特性[J]. 岩土工程学报，2000，22(3)：294-298.(CHEN Zhongxian，TANG Lei. Rock displacement and load of bolts around large-scale cavities with high stress[J]. Chinese Journal of Geotechnical Engineering，2000，22(3)：294-298.(in Chinese))
[8]	苏国韶，冯夏庭，江权，等. 高地应力下大型地下洞室群开挖顺序与支护参数组合优化的智能方法[J]. 岩石力学与工程学报，2007，26(增1)：2 800-2 808.(SU Guoshao，FENG Xiating，JIANG Quan，et a1. Intelligent method of combinatorial optimization of excavation sequence and support parameters for large underground caverns under condition of high geostress[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(Supp.1)：2 800-2 808.(in Chinese)) " target="_blank">
[9]	黄书岭. 高应力下脆性岩石的力学模型与工程应用研究[博士学位论文][D]. 北京：中国科学院研究生院，2008.(HUANG Shuling. Study of mechanical model of brittle rock under high stress condition and its engineering applications[Ph. D. Thesis][D]. Beijing：Graduate University，Chinese Academy of Sciences，2008.(in Chinese)) " target="_blank">
[10]	丁秀丽，卢波，黄书岭，等. 雅砻江锦屏I级水电站技施阶段——高应力低强度应力比条件大型地下洞室群围岩开裂变形机制及稳定性研究[R]. 武汉：长江科学院，2010.(DING Xiuli，LU Bo，HUANG Shuling，et al. Technical construction stage of Jinping I hydropower station on Yalong River—research on stability and fracturing mechanism of surrounding rock mass for large underground powerhouse under conditions of high in-situ stress and low strength stress ratio[R]. Wuhan：Yangtze River Scientific Research Institute，2010.(in Chinese)) " target="_blank">
[11]	李仲奎，周钟，汤雪峰，等. 锦屏I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. Stability analysis and considerations 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)) " target="_blank">
[12]	段汝健，郭盛勇，王永德. 锦屏I级水电站地下厂房开挖支护施工关键技术[J]. 人民长江，2009，40(18)：45-47.(DUAN Rujian，GUO Shengyong，WANG Yongde. Key construction technologies of Jinping I hydropower station underground powerhouse excavation[J]. Yangtze River，2009，40(18)：45-47.(in Chinese)) " target="_blank">
[13]	魏进兵，邓建辉，王悌剀，等. 锦屏I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)：1 198-1 205. (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)：1 198-1 205.(in Chinese)) " target="_blank">
[14]	卢波，王继敏，丁秀丽，等. 锦屏I级水电站地下厂房围岩开裂变形机制研究[J]. 岩石力学与工程学报，2010，29(12)：2 429- 2 441.(LU Bo，WANG Jimin，DING Xiuli，et al. Study of deformation and cracking mechanism of surrounding rock of Jinping I underground powerhouse[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(12)：2 429-2 441.(in Chinese)) " target="_blank">
[15]	陈卫忠，李术才，朱维申，等. 急倾斜层状岩体中巨型地下洞室群开挖施工理论与优化研究[J]. 岩石力学与工程学报，2004，23(19)：3 281-3 287.(CHEN Weizhong，LI Shucai，ZHU Weishen，et al. Excavation and optimization theory for giant underground caverns constructed in high dipping laminar strata[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(19)：3 281-3 287.(in Chinese)) " target="_blank">
[16]	裴建良，刘建锋，徐进. 层状大理岩卸荷力学特性试验研究[J]. 岩石力学与工程学报，2009，28(12)：2 496-2 502.(PEI Jianliang，LIU Jianfeng，XU Jin. Experimental study of mechanical properties of layered marble under unloading condition[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(12)：2 496-2 502.(in Chinese)) " target="_blank">
[17]	周钟，巩满福，侯东奇，等. 四川省雅砻江锦屏I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(4)[R]. 成都：中国水电工程顾问集团成都勘测设计研究院，2008.(ZHOU Zhong，GONG Manfu，HOU Dongqi，et al. Report on surrounding rock mass stability and support design for underground powerhouse caverns group construction of Jinping I hydropower project located on Yalong River(4)[R]. Chengdu：HydroChina Chengdu Engineering Corporation，2008.(in Chinese)) " target="_blank">
[18]	郑汉淮，杨静熙，邓卫东，等. 雅砻江锦屏I级水电站可行性研究报告(工程地质)[R]. 成都：中国水电工程顾问集团成都勘测设计研究院，2003.(ZHENG Hanhuai，YANG Jingxi，DENG Weidong，et al. Feasibility study report of Jinping I hydropower project located on Yalong River(engineering geology)[R]. Chengdu：HydroChina Chengdu Engineering Corporation，2003.(in Chinese)) " target="_blank">
[19]	黄书岭，徐劲松，丁秀丽，等. 考虑结构面特性的层状岩体复合材料模型与应用研究[J]. 岩石力学与工程学报，2010，29(4)：743-756.(HUANG Shuling，XU Jinsong，DING Xiuli，et al. Study on layered rock mass composite model based on characteristics of structural plane and its application[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(4)：743-756.(in Chinese))
[20]	中国水电工程顾问集团成都勘测设计研究院. 锦屏I级水电站地下厂房洞室群围岩岩体质量物探检测阶段成果报告[R]. 成都：中国水电工程顾问集团成都勘测设计研究院，2009.(HydroChina Chengdu Engineering Corporation. Stage report on surrounding rock mass quality geophysical detection for underground powerhouse caverns group of Jinping I hydropower project[R]. Chengdu：HydroChina Chengdu Engineering Corporation，2009.(in Chinese)) " target="_blank">
[21]	黄书岭，冯夏庭，张传庆. 岩体力学参数的敏感性综合评价分析方法研究[J]. 岩石力学与工程学报，2008，27(增1)：2 624-2 630. (HUANG Shuling，FENG Xiating，ZHANG Chuanqing. Study on the method of comprehensive evaluation for parameters of constitutive model of rockmass[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(Supp.1)：2 624-2 630.(in Chinese)) " target="_blank">
[22]	YU M H，XIA G Y，KOLUPAEV V A. Basic characteristics and development of yield criteria for geomaterials[J]. Journal of Rock Mechanics and Geotechnical Engineering，2009，1(1)：71-88. " target="_blank">
[23]	DESAI C S，TOTH J. Disturbed state constitutive modeling based on stress-strain and nondestructive behavior[J]. International Journal of Solids and Structures，1996，33(11)：1 619-1 650. " target="_blank">