剪切条件下单裂隙渗流机制试验及三维数值分析研究

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (550 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract In order to investigate the behaviors of fluid flow through rock fractures，two kinds of artificial parallel plate fractures with different patterns of contact area distribution and one artificial rock fracture with natural fracture characteristics are designed. Flow tests on parallel plate fractures and coupled shear-flow test on artificial rock fracture as well as the related numerical simulations based on finite element method are carried out to investigate the local characteristics of flow through fractures. The results show that，despite of contact area ratio，which is the main reason，pattern of contact area distribution also affects the discharge capacity of fracture. Reynolds number plays an important role in the discharge capacity of fracture. With the increase in Reynolds number，backflow occurs around the contact area，which can decrease the discharge capacity of fracture to a certain extent. Results of numerical simulation are in good agreement with experimental tests.

Key words： numerical analysis rock fracture nonlinear flow Navier-Stokes equations contact area

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

https://rockmech.whrsm.ac.cn/EN/Y2010/V29/I11/2230

[1] GIACOMINI A，BUZZIB O，FERRERO A M，et al. Numerical study of flow anisotropy within a single natural rock joint[J]. International Journal of Rock Mechanics and Mining Sciences，2008，45(1)：47–58. [2] BARTON N. Review of a new shear strength criterion for rock joints[J]. Engineering Geology，1973，7：287–332. [3] JIANG Y J，LI B，YOSIHIKO T. Estimating the relation between surface roughness and mechanical properties of rock joints[J]. International Journal of Rock Mechanics and Mining Sciences，2006，43(6)：837–846. [4] LIU J，ELSWORTH D，BRADY B H，et al. Strain-dependent fluid flow defined through rock mass classification schemes[J]. Rock Mechanics and Rock Engineering，2000，33(2)：75–92. [5] GUTIERREZ M，ÉINO L E，HÙEG K. The effect of fluid content on the mechanical behaviour of fractures in chalk[J]. Rock Mechanics and Rock Engineering，2000，33(2)：93–117. [6] JEONG W，SONG J. Numerical investigations for flow and transport in a rough fracture with hydromechanical effect[J]. Energy Sources (Part A)，2005，27(11)：997–1 011. [7] 郑少河，赵阳升，段康廉. 三维应力作用下天然裂隙渗流规律的实验研究[J]. 岩石力学和工程学报，1999，18(2)：133–136.(ZHENG Shaohe，ZHAO Yangsheng，DUAN Kanglian. An experimental study of the permeability law of natural fracture under 3D stresses[J]. Chinese Journal of Rock Mechanics and Engineering，1999，18(2)：133–136.(in Chinese)) [8] HUANG T，RUDNICKI J W. A mathematical model for seepage of deeply buried groundwater under higher pressure and temperature[J]. Journal of Hydrology，2006，3(27)：42–54. [9] KUCUR M，UZAL E. Controlling critical Reynolds number of parallel plate flow by boundary input[J]. Aircraft Engineering and Aerospace Technology，2007，79(5)：507–510. [10] ZIMMERMAN R W，AL-YAARUBI A，PAIN C C，et al. Nonlinear regimes of fluid flow in rock fractures[J]. International Journal of Rock Mechanics and Mining Sciences，2004，41(1)：1–7. [11] ZIMMERMAN R W，BODVARSSON G S. Hydraulic conductivity of rock fractures[J]. Transport in Porous Media，1996，23(1)：1–30. [12] SISAVATH S，AL-YAARUBI A，PAIN C C，et al. A simple model for deviations from the cubic law for a fracture undergoing dilation or closure[J]. Pure Application Geophysics，2003，160(5/6)：1 009– 1 022. [13] XU R N，JIANG P X. Numerical simulation of fluid flow in microporous media[J]. International Journal of Heat and Fluid Flow，2008，29(5)：1 447–1 455. [14] LI B，JIANG Y，KOYAMA T，et al. Experimental study of the hydro-mechanical behavior of rock joints using a parallel-plate model containing contact areas and artificial fractures[J]. International Journal of Rock Mechanics and Mining Sciences，2008，45(3)：362–375. [15] BATCHELOR G K. An introduction to fluid dynamics[M]. New York：Cambridge University Press，1967. [16] KOYAMA T. Stress，flow and particle transport in rock fracture[Ph. D. Thesis][D]. Stockholm，Sweden：Royal Institute of Technology(KTH)，2007.