Inversion analysis of three-dimensional geostress field in the second stage project of South-to-North Water Transfer

doi:10.4028/www.scientific.net/AMM.66-68.901

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 会议论文

	Inversion analysis of three-dimensional geostress field in the second stage project of South-to-North Water Transfer
	Pei Qi-tao; Li Hai-bo; Liu Ya-qun; Yang Feng-wei
	2011
会议日期	JUN 20-22, 2011
会议地点	Nanchang, PEOPLES R CHINA
关键词	deep river valley river valley erosion geostress field inversion multiple regression analysis
卷号	66-68
DOI	10.4028/www.scientific.net/AMM.66-68.901
页码	901-906
英文摘要	Focus on the topography features of V-shaped deep river valley in Ada dam area, the influence of intensively, moderately and slightly weathered stratum as well as the action of river valley erosion on geostress field was considered. Then, the 3-D initial geostress unloading model was established based on the measured geostress data and geological conditions. Combining the finite element numerical method and inversion theory, multiple regression analysis was established between the measured and corresponding calculated results of geostress. Then, the optimal regression coefficient could be derived. In addition, for convenience of comparison, another method was adopted by ignoring the action of river valley erosion. Through the comparison between the computed values by two methods and the measured geostress values respectively, it is found that the computed values by the former method are more close to the measured ones. Therefore, the distribution rule of initial geostress field can be obtained accurately, which provides important reference for design and construction of Ada dam and its diversion tunnel layout.
源文献作者	Tan, HH
会议录	MECHANICAL, MATERIALS AND MANUFACTURING ENGINEERING, PTS 1-3
会议录出版者	TRANS TECH PUBLICATIONS LTD
会议录出版地	STAFA-ZURICH
语种	英语
WOS研究方向	Engineering ; Materials Science
WOS记录号	WOS:000309941600171
内容类型	会议论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4605]
专题	岩土力学所知识全产出_会议论文国家重点实验室知识产出_会议论文
作者单位	Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn
推荐引用方式 GB/T 7714	Pei Qi-tao,Li Hai-bo,Liu Ya-qun,et al. Inversion analysis of three-dimensional geostress field in the second stage project of South-to-North Water Transfer[C]. 见:. Nanchang, PEOPLES R CHINA. JUN 20-22, 2011.