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Appl. Sci. 2018, 8(7), 1051; https://doi.org/10.3390/app8071051

Prediction of Ground Deformation during Pipe-Jacking Considering Multiple Factors

1
State Key Laboratory of Ocean Engineering, School of Naval Architecture, Ocean, and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
2
Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration (CISSE), Department of Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
3
Department of Civil and Construction Engineering, Swinburne University of Technology, Victoria 3122, Australia
4
School of Engineering, Royal Melbourne Institute of Technology, Victoria 3001, Australia
*
Authors to whom correspondence should be addressed.
Received: 11 April 2018 / Revised: 14 June 2018 / Accepted: 15 June 2018 / Published: 27 June 2018
(This article belongs to the Section Mechanical Engineering)
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Abstract

Pipe-jacking is a construction method widely used in pipeline constructions. Prediction of ground deformation induced by pipe-jacking, is important for safety and scheduling purposes. This paper presents an approach to predict ground deformation during pipe-jacking considering following factors: (i) bulkhead additive thrust; (ii) friction on jacking machine; (iii) grouting pressure; and (iv) ground loss. Mindlin’s solution was used to calculate the ground deformation induced by bulkhead additive thrust and friction on the jacking machine. The shearing disturbance coefficient was adopted to evaluate the mitigation effect of shearing behavior on ground deformation. Verruijt’s solution was used to simulate the effect of grouting pressure. Sagaseta’s method was adopted to consider the ground loss induced by over-excavation. Subsequently, a three-dimensional analytical solution for ground deformation induced by pipe-jacking was obtained. A case study based on a pipe-jacking project undertaken in Jiangsu, China was analyzed to validate the proposed approach. The results indicated that the proposed approach was robust and could be implemented for future pipe-jacking projects. View Full-Text
Keywords: pipe-jacking; ground deformation; prediction method; grouting pressure pipe-jacking; ground deformation; prediction method; grouting pressure
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Ren, D.-J.; Xu, Y.-S.; Shen, J.S.; Zhou, A.; Arulrajah, A. Prediction of Ground Deformation during Pipe-Jacking Considering Multiple Factors. Appl. Sci. 2018, 8, 1051.

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