地下厂房围岩松动圈声波拟合及监测反馈分析

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摘要在对锦屏一级水电站和溪洛渡水电站地下厂房围岩大量声波波速–深度曲线及其曲线拟合的基础上，将声波波速–深度曲线分成5类；利用经典的波速–弹性模量关系式将地下厂房围岩深度与弹性模量联系起来，对开挖后的洞壁岩体松弛现象和弹性模量下降的规律进行评价，提出洞周松动圈深度拟合公式。将提出的松动圈拟合公式应用于地下厂房围岩监测反馈分析和超前预报，分析成果比传统弹塑性理论更符合围岩实际变形规律。研究结果为围岩变形稳定分析和开挖反馈分析提供理论基础。

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关键词 ：岩石力学, 岩体声波检测, 最小二乘拟合, 围岩松动圈, 地下厂房

Abstract：Based on large amounts of wave velocity-depth curves of surrounding rocks in underground powerhouses of Jingping I and Xiluodu hydropower stations，the acoustic velocity-depth curves are analyzed and classified into 5 types. With the least square method，acoustic velocity-depth curves are fitted with 3 different functions. By substituting the acoustic velocity in classical wave velocity-elastic modulus formula with the fitting functions，the relationship between elastic modulus and depth of surrounding rock in underground powerhouse is established. Thus the relaxation phenomenon of elastic modulus of rock mass near the cave wall and decreasing law of elastic modulus after excavation are evaluated；and the fitting formula in wall rock loosing zone is proposed. The newly proposed formula is applied to back analysis and deformation advanced forecasting in underground powerhouse. The analytical results fit practical deformation law of surrounding rock much better than classical elastoplastic analysis results. The study results provide a new theoretical foundation for stability calculation and feedback analysis of surrounding rocks.

Key words： rock mechanics rock mass acoustic detection least square method fitting surrounding rock loosing zone underground powerhouse

收稿日期: 2011-02-24

引用本文:

张建海1，2，胡著秀1，2，杨永涛1，2，魏进兵1，2，邓建辉1，2. 地下厂房围岩松动圈声波拟合及监测反馈分析[J]. 岩石力学与工程学报, 2011, 30(6): 1191-1197.
ZHANG Jianhai1，2，HU Zhuxiu1，2，YANG Yongtao1，2，WEI Jinbing1，2，DENG Jianhui1，2. ACOUSTIC VELOCITY FITTING AND MONITORING FEEDBACK ANALYSIS OF SURROUNDING ROCK LOOSING ZONE IN UNDERGROUND POWERHOUSE. , 2011, 30(6): 1191-1197.

链接本文:

http://www.rockmech.org/CN/Y2011/V30/I6/1191

[1]	许强，黄润秋. 考虑地应力的洞室围岩块体稳定性分析的理论与实践[J]. 地质力学与环境保护，1996，7(4)：1-6.(XU Qiang，HUANG Runqiu. The theory of stability analysis of surrounding rock in consideration of geostress and its application[J]. Journal of Geological Hazards and Environment Preservation，1996，7(4)：1-6.(in Chinese)) " target="_blank">
[4]	李攀峰，王银梅，张倬元. 某大型地下洞室群整体稳定性评价[J]. 太原理工大学学报，2002，33(4)：422-425.(LI Panfeng，WANG Yinmei，ZHANG Zhuoyuan. Stability assessment of a large-scale underground chamber group[J]. Journal of Taiyuan University of Technology，2002，33(4)：422-425.(in Chinese)) " target="_blank">
[6]	陈秀铜，李璐. 大型地下厂房洞室群围岩稳定分析[J]. 岩石力学与工程学报，2008，27(增1)：2 866-2 872.(CHEN Xiutong，LI Lu. Stability analysis of surrounding rock of large underground powerhouse cavern group[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(Supp.1)：2 866-2 872.(in Chinese)) " target="_blank">
[9]	韩荣荣，张建海，张肖，等. 地应力场反演回归分析的一种改进算法[J]. 四川水利，2008，(4)：72-75.(HAN Rongrong，ZHANG Jianhai，ZHANG Xiao，et al. An improved algorithm of inversion regression analysis for groundstress field[J]. Sichuan Water Resources，2008，(4)：72-75.(in Chinese)) " target="_blank">
[2]	李攀峰，王银梅，张倬元. 某大型地下洞室群整体稳定性评价[J]. 太原理工大学学报，2002，33(4)：422-425.(LI Panfeng，WANG Yinmei，ZHANG Zhuoyuan. Stability assessment of a large-scale underground chamber group[J]. Journal of Taiyuan University of Technology，2002，33(4)：422-425.(in Chinese)) " target="_blank">
[7]	李沃钊，李钟奎. 监测反馈分析在二滩地下厂房施工中的应用[J]. 水电站设计，1999，15(1)：66-72.(LI Wozhao，LI Zhongkui. Application of feedback analysis in construction of Ertan underground powerhouse[J]. Design of Hydroelectric Power Station，1999，15(1)：66-72.(in Chinese)) " target="_blank">
[5]	谢晔，刘军. 在大型地下开挖中围岩块体稳定性分析[J]. 岩石力学与工程学报，2006，25(2)：306-311.(XIE Ye，LIU Jun. Stability analysis of block in surrounding rock mass of large underground excavation[J]. Journal of Rock Mechanics and Engineering，2006，25(2)：306-311.(in Chinese))
[8]	唐旭海，张建海，张恩宝. 溪洛渡电站左岸地下厂房洞室群围岩整体稳定性研究[J]. 云南水力发电，2007，23(1)：33-37.(TANG Xuhai，ZHANG Jianhai，ZHANG Enbao. Study on the cavern surrounding rock stability of the underground powerhouse of Xiluodu Hydropower Station[J]. Yunnan Water Power，2007，23(1)：33-37.(in Chinese)) " target="_blank">
[12]	王玉梅，苗永康，孟宪军，等. 岩石物理横波速度曲线计算技术[J]. 油气地质与采收率，2006，13(4)：58-61.(WANG Yumei，MIAO Yongkang，MENG Xianjun，et al. Calculation procedure of shear velocity curve on petrophysics[J]. Petroleum Geology and Recovery Efficiency，2006，13(4)：58-61.(in Chinese)) " target="_blank">
[11]	郭凌云，肖明. 地下工程岩体参数场反演分析应用研究[J]. 岩石力学与工程学报，2008，27(增2)：3 822-3 826.(GUO Lingyun，XIAO Ming. Back-analysis and application study of surrounding rock parameter field of underground engineering[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(Supp.2)：3 822-3 826.(in Chinese)) " target="_blank">
[13]	徐芝纶. 弹性力学[M]. 北京：高等教育出版社，1978：288-289. (XU Zhilun. Theory of elasticity[M]. Beijing：Higher Education Press，1978：288-289.(in Chinese)) " target="_blank">
[15]	胡兵，李清朗. 现代科学工程计算基础[M]. 成都：四川大学出版社，2003：13-16.(HU Bing，LI Qinglang. Modern science engineering caculation foundation[M]. Chengdu：Sichuan University Press，2003：13-16.(in Chinese)) " target="_blank">
[3]	王文远，张四和. 糯扎渡水电站左岸厂房区地下洞室群围岩稳定性研究[J]. 水力发电，2005，31(5)：30-32.(WANG Wenyuan，ZHANG Sihe. Study on the stability of surrounding rocks of the underground chamber group for the left-bank powerhouse of Nuozhadu Hydropower Station[J]. Water Power，2005，31(5)：30-32.(in Chinese)) " target="_blank">
[10]	朱维申，孙爱花，王文涛，等. 大型洞室群高边墙位移预测和围岩稳定性判别方法[J]. 岩石力学与工程学报，2007，26(9)：1 729-1 736. (ZHU Weishen，SUN Aihua，WANG Wentao，et al. Study on prediction of high wall displacement and stability judging method of surrounding rock for large cavern groups[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(9)：1 729-1 736.(in Chinese)) " target="_blank">
[14]	徐士良. FORTRAN常用算法程序集[M]. 北京：清华大学出版社，1992：280-285.(XU Shiliang. FORTRAN algorithms procedures set[M]. Beijing：Tsinghua University Press，1992：280-285.(in Chinese)) " target="_blank">