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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：President of international exchange committee of the Chinese Society of Rock Mechanics and Engineering CSRME
其他任职：国际岩石力学与岩石工程学会（ISRM）中国国家小组副主席
性别：男
毕业院校：东北大学
学位：博士
所在单位：土木工程系
办公地点：综合实验四号楼330
联系方式：tca@mail.neu.edu.cn
2D-numerical analysis of hydraulic fracturing in heterogeneous geo-materials
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论文类型：期刊论文
发表时间：2009-06-01
发表刊物：CONSTRUCTION AND BUILDING MATERIALS
收录刊物：SCIE、EI
卷号：23
期号：6
页面范围：2196-2206
ISSN号：0950-0618
关键字：Hydraulic fracture; Numerical simulation; Cavity expansion; Stiff soil; Heterogeneity
摘要：A geo-material failure process analysis (F-RFPA2D), considering the coupling of stress distribution, fluid flow. and element damage evolution, is used to investigate the mechanisms of crack initiation and propagation around a 2-D cylindrical cavity in heterogeneous stiff soils during hydraulic fracturing. A large number of numerical analysis on hydraulic fracturing in stiff soil with pre-existing injection cavity have been carried out to study the mechanism of hydraulic fracturing in stiff soil. In addition, the characteristic of acoustic emission (AE) due to hydraulic fractures are studied by numerical simulations. The results provide a better understanding of the crack initiation and propagation mechanisms during hydrofracturing. The simulation software package can be a powerful tool for study of soil behavior during hydraulic fractures. Crown Copyright (C) 2008 Published by Elsevier Ltd. All rights reserved.