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文章题目：基于三维裂隙连通率的裂隙岩体表征单元体研究 STUDY OF REPRESENTATIVE ELEMENTARY VOLUME FOR FRACTURED ROCK MASS BASED ON THREE-DIMENSIONAL FRACTURE CONNECTIVITY 作者：WANG Xiaoming 《岩石力学与工程学报》 |
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xmxiaoming
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2楼2013-12-21 19:27:10
baiyuefei
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xmxiaoming: 金币+5, ★★★★★最佳答案, 谢谢 2013-12-21 19:38:57
jssxh: 检索EPI+1, 谢谢参与，请继续关注本版块！ 2013-12-23 08:15:54
xmxiaoming: 金币+5, ★★★★★最佳答案, 谢谢 2013-12-21 19:38:57
jssxh: 检索EPI+1, 谢谢参与，请继续关注本版块！ 2013-12-23 08:15:54
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EI收录了 Accession number: 20134817040262 Title: Study of representative elementary volume for fractured rock mass based on three-dimensional fracture connectivity Authors: Wang, Xiaoming1 Email author wangxiaoming1984@126.com; Xia, Lu1; Zheng, Yinhe1; Yu, Qingchun1 Email author yuqch@cugb.edu.cn Author affiliation: 1 School of Water Resources and Environment, China University of Geosciences, Beijing 100083, China Corresponding author: Yu, Q. (yuqch@cugb.edu.cn) Source title: Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering Abbreviated source title: Yanshilixue Yu Gongcheng Xuebao Volume: 32 Issue: SUPPL.2 Issue date: July 2013 Publication year: 2013 Pages: 3297-3302 Language: Chinese ISSN: 10006915 CODEN: YLGXF5 Document type: Journal article (JA) Publisher: Academia Sinica, Wuhan, 430071, China Abstract: Three-dimensional(3D) fracture connectivity, which can comprehensively reflect the fracture features, is a key parameter for evaluating the stability of engineering rock masses. For the purpose of determining a representative 3D connectivity value, the scale effect of 3D connectivity is investigated based on projection method and the representative elementary volume(REV) of the study rock mass is further estimated. First, fracture data collected from an exploration tunnel are statistically analyzed and used to generate a large discrete fracture network of 100 m×100 m×140 m by an inverse method. Inside the fracture network, reference planes with different sizes ranging from 5m×5m to 100 m×100 m are sampled 10 times on different elevations. A projection method is adopted to calculate horizontal 3D fracture connectivity of each reference plane and the relationship between the 3D fracture connectivity value and the study domain size is analyzed. The REV of the rock mass is estimated based on a series of T-tests and F-tests. The T-tests and F-tests are performed to determine whether the mean value and variance of fracture connectivity for different sizes are statistically equal to the largest size, respectively. The results show that a size of 65m×65m could be viewed as the REV, beyond which the mean value and variance of the connectivity converge to a stable state. Number of references: 27 Main heading: Fracture Controlled terms: Inverse problems - Rock mechanics - Rocks - Three dimensional Uncontrolled terms: Discrete fracture network - Engineering rock mass - Fracture connectivity - Fractured rock mass - Projection method - Representative elementary volume - Scale effects - Three-dimensional fracture Classification code: 421 Strength of Building Materials; Mechanical Properties - 481.1 Geology - 502.1 Mine and Quarry Operations - 902.1 Engineering Graphics - 921 Mathematics - 951 Materials Science Database: Compendex Compilation and indexing terms, © 2013 Elsevier Inc. |
3楼2013-12-21 19:30:25
baiyuefei
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4楼2013-12-21 19:30:34
