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Study of the Mechanism of Fracture Grouting in Deeply Buried Rock Strata Based on Bingham Fluid Slurry
Joint Authors
Cheng, Hua
Li, Mingjing
Liu, Xiangyang
Lin, Jian
Rong, Chuanxin
Xu, Huidong
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-12-07
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
In view of the fact that the theory of fracture grouting in deeply buried rock strata seriously lags behind engineering practices, a circular fracturing diffusion model of a single fracture was established by considering numerous influencing factors of deeply buried rock strata, such as the crustal stress characteristics, rock mechanical properties, and time-varying characteristics of the serous viscosity.
By setting the stress intensity factor KI equal to the material fracture toughness KIC at the fracture tip as the criterion for fracturing, the diffusion equation for the fracture grouting was derived and verified experimentally.
Theoretical analysis shows that the fracture grouting pressure P0 is linearly proportional to the depth of the strata H and the lateral pressure coefficient k.
The time-varying characteristics of the serous viscosity have an important influence on the grouting pressure and the diffusion radius.
Its early impact is small, while its later impact is large.
The diffusion radius of the grouting is indirectly proportional to the grouting pressure and the grouting flow rate.
In order to increase the diffusion radius of the grouting, the grouting pressure and the grouting flow rate should be increased simultaneously.
In order, the main factors influencing the diffusion radius of the fracture grouting are the time-varying characteristics of the serous viscosity, the grouting pressure, the grouting flow rate, and the depth of the strata.
American Psychological Association (APA)
Liu, Xiangyang& Cheng, Hua& Lin, Jian& Rong, Chuanxin& Li, Mingjing& Xu, Huidong. 2019. Study of the Mechanism of Fracture Grouting in Deeply Buried Rock Strata Based on Bingham Fluid Slurry. Advances in Civil Engineering،Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1116883
Modern Language Association (MLA)
Liu, Xiangyang…[et al.]. Study of the Mechanism of Fracture Grouting in Deeply Buried Rock Strata Based on Bingham Fluid Slurry. Advances in Civil Engineering No. 2019 (2019), pp.1-10.
https://search.emarefa.net/detail/BIM-1116883
American Medical Association (AMA)
Liu, Xiangyang& Cheng, Hua& Lin, Jian& Rong, Chuanxin& Li, Mingjing& Xu, Huidong. Study of the Mechanism of Fracture Grouting in Deeply Buried Rock Strata Based on Bingham Fluid Slurry. Advances in Civil Engineering. 2019. Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1116883
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1116883