3D NUMERICAL SIMULATION FOR COUPLED THM OF ROCK MATRIX-FRACTURED MEDIA IN HEAT EXTRACTION IN HDR
Zhao Yangsheng1，2， Wang Ruifeng2， Hu Yaoqing2， Wan Zhijun1， Xie Yaoshe1
(1College for Science and Technology of Energy，China University of Mining and Technology，Xuzhou 221008 China) (2Mining Technology Institute，Taiyuan University of Technology，Taiyuan 030024 China)
Abstract：This paper discussed the development of heat extraction in hot dry rock，presented a thermo-hydro- mechanical coupled mathematical model for 3D rock matrix-fractured medium and the detailed strategy and methods to solve this mathematics model，carried out detailed 3D numerical simulation for exploitation in deep-seated HDR 6 000 m under the surface. The following are revealed：(1) drop of rock temperature with the heat extraction and the distribution variation；(2) reduction of stress within the matrices and fractures with the heat extraction；(3) the variation of aperture of fracture with the heat extraction. This paper offers the foundation and methods for the decision and project selection in the heat exploitation of deep-seated HDR.
赵阳升1，2 王瑞凤2 胡耀青2 万志军1 谢耀社1. 高温岩体地热开发的块裂介质固流热耦合三维数值模拟[J]. 岩石力学与工程学报, 2002, 21(12): 1751-1755.
Zhao Yangsheng1，2， Wang Ruifeng2， Hu Yaoqing2， Wan Zhijun1， Xie Yaoshe1. 3D NUMERICAL SIMULATION FOR COUPLED THM OF ROCK MATRIX-FRACTURED MEDIA IN HEAT EXTRACTION IN HDR. , 2002, 21(12): 1751-1755.
1Jing L，Tsang CF，Stephansson O. DECOVALEX ----An interna- tional Co-operative research project on mathematical models of couple THM processes for safety analysis of radioactive waste repositories[J]. Int. J. Rock Mech. & Min.Sci.，1995，32(5)：389～398
2Yamaguchi T，Sato Y，Kuriyangawa M，et al.Heat extraction tests and reservoir modeling for hot dry rock development[J]. 资源与素材学会
志，1990，106(14)：843～849
3Tenma N，Matsunaga I，Kuriyagawa M，et al. Estimation on the effective heat extraction area of the reservoir at Hjiori Hot Rock Test Site[J]. 资源与素材，1994，110(7)：539～546
4Kolditz O. Modelling flow and heat transfer in fracture rocks： conceptual model of a 3-D deterministic fracture network[J]. Geothermics，1995，24(3)：451～470
5Kohl T，Evans K F，Hopkirk R J，et al. Coupled hydraulic，thermal and mechanical considerations for the simulation of hot dry rock reservoirs[J]. Geothermics，1995，24(3)：345～359
6Kohl T，Evans K F，Hopkirk R J，et al. Modelling of coupled hydraulic， thermal and mechanical behaviour in the simulation of hot dry rock reserviour[A]. In：Proc. Symp. Fractured and Joint Rock Masses[C]. USA：Lake Tahoe， 1992
7赵阳升. 矿山岩石流体力学[M]. 北京：煤炭工业出版社，1994
8王补宣. 工程传热传质学[M]. 北京：科学出版社，1982
9Bear J. Dynamics of Fluid in Porous Media[M]. New York：American Elsevier Publishing Company，Inc. 1972
2002, Vol. 21 
