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Determination of the geometrical REV based on fracture connectivity: a case study of an underground excavation at the Songta dam site, China
Li, Yanyan1; Chen, Jianping2; Shang, Yanjun1
2018-11-01
发表期刊BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
ISSN1435-9529
卷号77期号:4页码:1599-1606
摘要This paper presents a technique for estimating the geometrical representative elementary volume (REV) of a fractured rock mass based on fracture connectivity. A three-dimensional fracture network model, of dimensions 78mx50mx50m, was generated and validated for a granite rock mass using joint data collected from an exploration tunnel at the Songta dam site in southwest China. Two hundred and forty cubic specimens with edge lengths ranging from 1 to 20m were sampled from the model, and connectivity parameters of each specimen, including the number of intersections per unit volume (C-1) and the intersection length per unit volume (L-1), were calculated. The REV was determined using the connectivity parameters and a series of statistical tests. The results demonstrate that both the C-1- and L-1-based REVs are equal to 11mx11mx11m. In this work, the volumetric fracture intensity (P-32) was also used to calculate the REV for comparison. The REV obtained by P-32 is 9mx9mx9m, which is smaller than that calculated by C-1 and L-1. Finally, the geometrical REV for the rock mass by integrating C-1, L-1, and P-32 is 11mx11mx11m.
关键词Rock mass Representative elementary volume 3D Fracture network Connectivity
DOI10.1007/s10064-017-1063-y
资助者Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation
关键词[WOS]MEAN TRACE LENGTH ; ROCK MASS ; HYDRAULIC-PROPERTIES ; JOINT GEOMETRY ; NETWORK ; SIZE ; MODEL ; IDENTIFICATION ; PERMEABILITY ; PARAMETERS
语种英语
资助项目Chinese Academy of Sciences[XDB10030100] ; National Natural Science Foundation of China (NSFC)[41602327] ; National Natural Science Foundation of China (NSFC)[41372324] ; China Postdoctoral Science Foundation[2015M580135]
资助者Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation
WOS研究方向Engineering ; Geology
WOS类目Engineering, Environmental ; Engineering, Geological ; Geosciences, Multidisciplinary
WOS记录号WOS:000448255600021
出版者SPRINGER HEIDELBERG
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.iggcas.ac.cn/handle/132A11/89142
专题页岩气与地质工程院重点实验室
通讯作者Li, Yanyan
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
2.Jilin Univ, Coll Construct Engn, Changchun 130026, Jilin, Peoples R China
推荐引用方式
GB/T 7714
Li, Yanyan,Chen, Jianping,Shang, Yanjun. Determination of the geometrical REV based on fracture connectivity: a case study of an underground excavation at the Songta dam site, China[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2018,77(4):1599-1606.
APA Li, Yanyan,Chen, Jianping,&Shang, Yanjun.(2018).Determination of the geometrical REV based on fracture connectivity: a case study of an underground excavation at the Songta dam site, China.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,77(4),1599-1606.
MLA Li, Yanyan,et al."Determination of the geometrical REV based on fracture connectivity: a case study of an underground excavation at the Songta dam site, China".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 77.4(2018):1599-1606.
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