Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates
Academic Titles: President of international exchange committee of the Chinese Society of Rock Mechanics and Engineering CSRME
Other Post: Vice President of the Chinese Society of Rock Mechanics and Engineering CSRME
Paper Publications
2D-numerical analysis of hydraulic fracturing in heterogeneous geo-materials
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Indexed by:Journal Article
Date of Publication:2009-06-01
Journal:CONSTRUCTION AND BUILDING MATERIALS
Included Journals:EI、SCIE
Volume:23
Issue:6
Page Number:2196-2206
ISSN:0950-0618
Key Words:Hydraulic fracture; Numerical simulation; Cavity expansion; Stiff soil; Heterogeneity
Abstract: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.