Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/919272

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Title
Numerical simulation on excavation-damaged zone (EDZ) in fractured rockmass under coupled thermal-hydraulic-mechanical (THM) conditions
Author/Creator
Zhu, Wanchen;  Wei, Chenhui;  Wang, Shanyong
Institution
The University of Newcastle. Faculty of Engineering & Built Environment, School of Engineering
Description
The creation of an excavation damaged zone (EDZ) is expected around all man-made openings in civil engineering, in underground mining, and in petroleum engineering. Understanding the development of EDZ under coupled thermal, hydraulic and mechanical (THM) conditions is of great importance for evaluating the engineering stability and safety, and for optimizing the supporting parameters. The work begins with the characterization of rock mass heterogeneity by using the digital image-based technique. Next, a coupled THM model for the rock damage is used, in which the damage variable is incorporated into the classic thermohydroelastic model based on elastic damage theory. The model is validated against some existing experimental observations. Finally, the model is used to simulate the formation and development of EDZ under coupled THM environments and the effect of heterogeneity of rock mass on the THM coupling is analyzed.
Relation
3rd International Conference on New Development in Rock Mechanics and Engineering. The Proceedings of the 3rd International Conference 24-26 May 2009, Sanya, P. R. China On New Development in Rock Mechanics and Engineering & Sanya Forum for the Plan of City and City Construction (Sanya, China 24-26 May, 2009) p. 225-230
Date
2009
Publisher
Liberty Culture and Technology Company
Keyword(s)
excavation damaged zone;  thermal, hydraulic and mechanical (THM) conditions;  engineering stability;  thermohydroelastic model;  elastic damage theory
Resource Type
conference paper
Identifier
http://hdl.handle.net/1959.13/919272
Identifier
ISBN:0975506811
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Subject
"Numerical simulation on excavation-damaged zone (EDZ) in fractured rockmass under coupled thermal-hydraulic-mechanical (THM) conditions"
 
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