Slurry Clogging Criteria for Slurry Shield Tunnelling in Highly Permeable Ground
- Authors
- Ryu, Young-Moo; Kwon, Young-Sam; Kim, Tae-Hwan; Lee, In-Mo
- Issue Date
- 6월-2019
- Publisher
- KOREAN SOCIETY OF CIVIL ENGINEERS-KSCE
- Keywords
- slurry; penetration; shield TBM; clogging; tunnel face stability
- Citation
- KSCE JOURNAL OF CIVIL ENGINEERING, v.23, no.6, pp.2784 - 2793
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- KSCE JOURNAL OF CIVIL ENGINEERING
- Volume
- 23
- Number
- 6
- Start Page
- 2784
- End Page
- 2793
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/65311
- DOI
- 10.1007/s12205-019-2156-x
- ISSN
- 1226-7988
- Abstract
- When tunnelling using a slurry shield tunnel boring machine (slurry shield TBM), the tunnel face stability is significantly influenced by the filter cake formation during slurry injection to the chamber. In order to study slurry penetration behavior in highly permeable ground, comprehensive slurry injection tests were performed by varying the particle size distribution of the ground, the bentonite content and viscosity, and the slurry injection pressure. According to the results of these tests, the slurry penetration behavior could be classified into three types: Type A, denoting negligible slurry penetration; Type C, denoting excessive penetration; and Type B, denoting in-between penetration. Slurry clogging criteria (SCC) were proposed to classify these three types. The main superiority of the proposed SCC is that it can consider the grain size distribution of the ground, the characteristics of the slurry, and the slurry injection pressure together when assessing the penetration characteristics. The SCC value can either be obtained by performing a simple slurry penetration test; or it can be theoretically estimated by using the regression equation proposed in this paper.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.