A Quasi-3D Numerical Model for Grout Injection in a Parallel Fracture Based on Finite Volume Method
Joint Authors
Wang, Fuming
Li, Xiaolong
Hao, Meimei
Zhong, Yanhui
Zhang, Bei
Wang, Lianbang
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-18, 18 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-07-25
Country of Publication
Egypt
No. of Pages
18
Main Subjects
Abstract EN
The purpose of the present work is to develop a quasi-3D numerical method that can be used to study the diffusion mechanism of grout injection in a rock fracture based on the collocated structured grid of the finite volume method (FVM).
Considering the characteristics of fracture in geometry that the aperture is much less than its length and width, the Hele-Shaw model is introduced to deduce the z-derivatives of velocities u and v at walls, which is a function of the relevant average velocity and the fracture aperture.
The traditional difference scheme for the diffusive term is partly substituted with the derived analytical expressions; hence a three-dimensional problem of grout flow in the parallel fracture can be transformed into a two-dimensional one that concerns fracture aperture.
The new model is validated by the analytical solution and experimental data on three cases of grouting in the parallel-plate fracture.
Compared with the results from ANSYS-Fluent software, the present model shows better agreement with the analytical solution for the distribution of pressure and velocity.
Furthermore, the new model needs less grid unit, spends less time, but achieves greater accuracy.
The complexity of the grout flow field in the rock fracture is reduced; thus the computational efficiency can be improved significantly.
American Psychological Association (APA)
Li, Xiaolong& Hao, Meimei& Zhong, Yanhui& Zhang, Bei& Wang, Fuming& Wang, Lianbang. 2019. A Quasi-3D Numerical Model for Grout Injection in a Parallel Fracture Based on Finite Volume Method. Complexity،Vol. 2019, no. 2019, pp.1-18.
https://search.emarefa.net/detail/BIM-1131708
Modern Language Association (MLA)
Li, Xiaolong…[et al.]. A Quasi-3D Numerical Model for Grout Injection in a Parallel Fracture Based on Finite Volume Method. Complexity No. 2019 (2019), pp.1-18.
https://search.emarefa.net/detail/BIM-1131708
American Medical Association (AMA)
Li, Xiaolong& Hao, Meimei& Zhong, Yanhui& Zhang, Bei& Wang, Fuming& Wang, Lianbang. A Quasi-3D Numerical Model for Grout Injection in a Parallel Fracture Based on Finite Volume Method. Complexity. 2019. Vol. 2019, no. 2019, pp.1-18.
https://search.emarefa.net/detail/BIM-1131708
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1131708