大型地下洞室围岩体蠕变参数位移反分析研究

Abstract
Figure/Table
References (12)
Related Citation (15)

Download: PDF (1360 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Back analysis of creep parameters of engineering rock mass is a most important research subject of stability analysis of rock mass in large-scale underground engineering. According to the dynamic monitoring data of Jinping II underground powerhouse，an analytical model is established which can objectively reflect construction and excavation sequences；by using a finite element program of displacement back analysis combining a new exact penalty method and the Nelder-Mead algorithm，creep parameters of rock mass of Jinping II underground powerhouse are studied. The results show that it is desirable that the calculated displacements are very close to the measured ones，and most of errors are within 8%；the reasonable stress and displacement distributions of rock mass considering creep after excavation are presented. The research achievements can provide theory basis for deeply researching the long-term stability and reliability of large-scale underground chambers.

Key words： rock mechanics creep mechanical parameters back analysis underground engineering

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	WU Guojun1
	CHEN Weizhong1
	2
	JIA Shanpo3

Cite this article:

WU Guojun1,CHEN Weizhong1,2, et al. DISPLACEMENT BACK ANALYSIS OF CREEP PARAMETERS OF ENGINEERING ROCK MASS IN LARGE-SCALE UNDERGROUND CHAMBERS[J]. , 2010, 29(S2): 4043-4049.

URL:

https://rockmech.whrsm.ac.cn/EN/Y2010/V29/IS2/4043

[1] 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))

[2] 罗润林，阮怀宁，黄亚哲，等. 岩体初始地应力场的粒子群优化反演及在FLAC^3D中的实现[J]. 长江科学院院报，2008，25(4)：73–76.(LUO Runlin，RUAN Huaining，HUANG Yazhe，et al. Particle swarm optimization inversion method of initial ground stress and implementation in FLAC^3D[J]. Journal of Yangtze River Scientific Research Institute，2008，25(4)：73–76.(in Chinese))

[3] 付成华，汪卫明，陈胜宏. 溪洛渡水电站坝区初始地应力场反演分析研究[J]. 岩石力学与工程学报，2006，25(11)：2 305–2 312.(FU Chenghua，WANG Weiming，CHEN Shenghong. Back analysis study on initial geostress field of dam site for Xiluodu hydropower project[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(11)：2 305–2 312.(in Chinese))

[4] 姚显春，李宁，曲星，等. 拉西瓦水电站地下厂房三维高地应力反演分析[J]. 岩土力学，2010，31(1)：246–252.(YAO Xianchun，LI Ning，QU Xing，et al. Back analysis of three-dimensional initial geostress Laxiwa underground powerhouse[J]. Rock and Soil Mechanics，2010，31(1)：246–252.(in Chinese))

[5] 贾善坡，陈卫忠，谭贤君，等. 大岗山水电站地下厂房区初始地应力场Nelder-Mead优化反演研究[J]. 岩土力学，2008，29(9)：2 341–2 349.(JIA Shanpo，CHEN Weizhong，TAN Xianjun，et al. Nelder- Mead algorithm for inversion analysis of in-situ stress field of underground powerhouse area of Dagangshan hydropower station[J]. Rock and Soil Mechanics，2008，29(9)：2 341–2 349.(in Chinese))

[6] SAKURAI S. Determination of initial stresses and mechanical properties of viscoelastic underground medium[C]// Proceedings of 3rd ISRM Congress. Denver：[s. n.]，1974：1 169–1 174.

[7] 胡斌，冯夏庭，王国峰，等．龙滩水电站左岸高边坡泥板岩体蠕变参数的智能反演[J]. 岩石力学与工程学报，2005，24(17)：3 064– 3 070.(HU Bin，FEND Xiating，WANG Guofeng，et a1．Intelligent inversion of creeping parameters of left bank high slope shale rock masses at Longtan hydropower station[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(17)：3 064–3 070.(in Chinese))

[8] 陈炳瑞，冯夏庭，丁秀丽，等. 基于模式搜索的岩石流变模型参数识别[J]. 岩石力学与工程学报，2005，24(2)：207–211.(CHEN Bingrui，FENG Xiating，DING Xiuli，et a1. Rheological model and parameters identification of rock based on pattern search and least- square techniques[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(2)：207–211.(in Chinese))

[9] 陈炳瑞，冯夏庭，丁秀丽，等. 基于模式–遗传–神经网络的流变参数反演[J]. 岩石力学与工程学报，2005，24(4)：553–558.(CHEN Bingrui，FENG Xiating，DING Xiuli，et al. Back analysis of rheological parameters based on pattern-genetic-neural network[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(4)：553–558.(in Chinese))

[10] 杨文东，张强勇，张建国，等. 刚性承压板下深部岩体压缩蠕变参数反演[J]. 岩土力学，2009，30(3)：762–768.(YANG Wendong，ZHANG Qiangyong，ZHANG Jianguo，et al. Inversion of compression creep parameters of deep rock under rigid bearing plate[J]. Rock and Soil Mechanics，2009，30(3)：762–768.(in Chinese))

[11] 伍国军，陈卫忠，刘豆豆，等. 基于连续介质模型的隧道衬砌结构可靠性研究[J]. 岩土力学，2006，27(增1)：359–363.(WU Guojun，CHEN Weizhong，LIU Doudou，et al. Reliability analysis of tunnel lining based on continuum model[J]. Rock and Soil Mechanics，2006，27(Supp.1)：359–363.(in Chinese))

[12] 伍国军，陈卫忠，贾善坡，等. 岩石锚固界面剪切流变试验及模型研究[J]. 岩石力学与工程学报，2010，29(3)：520–527.(WU Guojun，CHEN Weizhong，JIA Shanpo，et al. Shear creep experiments for anchorage interface mechanics and nonlinear rheological model of rocks[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(3)：520–527.(in Chinese))