Experimental Investigation of Grout Nonlinear Flow Behavior through Rough Fractures

被引:3
作者
Jin, Yuhao [1 ,2 ,3 ]
Han, Lijun [1 ,2 ]
Xu, Changyu [1 ]
Meng, Qingbin [2 ]
Liu, Zhenjun [4 ]
Zong, Yijiang [5 ]
机构
[1] China Univ Min & Technol, Sch Mech & Civil Engn, Xuzhou 221116, Jiangsu, Peoples R China
[2] China Univ Min & Technol, State Key Lab Geomech & Deep Underground Engn, Xuzhou 221116, Jiangsu, Peoples R China
[3] Univ Nottingham, GERC, Nottingham NG7 2RD, England
[4] Fifth Project Co Ltd, China Railway Bur 14 Grp, Yanzhou 272117, Peoples R China
[5] Jiangsu Vocat Inst Architectural Technol, Xuzhou 221116, Jiangsu, Peoples R China
关键词
grout nonlinear flow; normalized transmissivity; critical grout hydraulic gradient; Reynolds number; NON-DARCY FLOW; FLUID-FLOW; LIQUID BRIDGES; WALLED FRACTURES; ROCK FRACTURE; CUBIC LAW; PRESSURE; MODEL;
D O I
10.3390/pr7100736
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
This research experimentally analyzed the impacts of various water cement (W/C) ratios of ultrafine cement grout material and normal loads F-N applied to fractures on grout nonlinear flow behavior through a rough plexiglass fractured sample. An effective self-made apparatus was designed and manufactured to conduct the stress-dependent grout flow tests on the plexiglass sample containing rough fractures. At each W/C ratio, the grout pressure P increased from 0 to 0.9 MPa, and the normal loads F-N ranged from 666.3 to 1467.8 N. The results of the experiments indicate that (1) the Forchheimer's law can be used to express the results of grout nonlinear flow through rough fractures. Moreover, both nonlinear coefficient a and linear coefficient b in Forchheimer's law decreased with the increase of the W/C ratio, but increased with the increase of the F-N value. (2) For normalized transmissivity, with the increase of Re, the decline of the T/T-0-Re curves means that the grout flow behavior through the fracture mainly went through three stages: the viscosity effect, then the weak inertia effect, and finally the strong inertia effect. The three stages showed that with the increase of Re, the grout flow state changed from linear to nonlinear. Moreover, with the increase of the W/C ratio, the Forchheimer coefficient beta decreased. (3) At a given F-N, the critical grout hydraulic gradient J(c) decreased, but the critical Reynolds number Re-c increased as the W/C ratio increased; at a given W/C ratio, J(c) increased, but Re-c decreased as F-N increased.
引用
收藏
页数:17
相关论文
共 53 条
[1]  
Bear J., 1988, Dynamics of Fluids in Porous Media
[2]   Fluid flow in synthetic rough-walled fractures: Navier-Stokes, Stokes, and local cubic law simulations [J].
Brush, DJ ;
Thomson, NR .
WATER RESOURCES RESEARCH, 2003, 39 (04) :SBH51-SBH515
[3]   Fracture Processes of Rock-Like Specimens Containing Nonpersistent Fissures under Uniaxial Compression [J].
Chen, Miao ;
Yang, Shengqi ;
Gamage, Ranjith Pathegama ;
Yang, Wendong ;
Yin, Pengfei ;
Zhang, Yuanchao ;
Zhang, Qiangyong .
ENERGIES, 2019, 12 (01)
[4]   The influence of fracture geometry variation on non-Darcy flow in fractures under confining stresses [J].
Chen, Yuedu ;
Lian, Haojie ;
Liang, Weiguo ;
Yang, Jianfeng ;
Vinh Phu Nguyen ;
Bordas, Stephane P. A. .
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2019, 113 :59-71
[6]   Shear Dispersion in a Rough-Walled Fracture [J].
Dejam, Morteza ;
Hassanzadeh, Hassan ;
Chen, Zhangxin .
SPE JOURNAL, 2018, 23 (05) :1669-1688
[7]   Reinfiltration through liquid bridges formed between two matrix blocks in fractured rocks [J].
Dejam, Morteza ;
Hassanzadeh, Hassan ;
Chen, Zhangxin .
JOURNAL OF HYDROLOGY, 2014, 519 :3520-3530
[8]   Formation of Liquid Bridges Between Porous Matrix Blocks [J].
Dejam, Morteza ;
Hassanzadeh, Hassan .
AICHE JOURNAL, 2011, 57 (02) :286-298
[9]   On the cubic law and variably saturated flow through discrete open rough-walled discontinuities [J].
Dippenaar, Matthys A. ;
Van Rooy, J. Louis .
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2016, 89 :200-211
[10]   The significance of geology for the morphology of potentially unstable rocks [J].
Fityus, S. G. ;
Giacomini, A. ;
Buzzi, O. .
ENGINEERING GEOLOGY, 2013, 162 :43-52