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Mathematical Problems in Engineering
Volume 2015, Article ID 579869, 11 pages
http://dx.doi.org/10.1155/2015/579869
Research Article

Fracture and Delamination Assessment of Prestressed Composite Concrete for Use with Pipe Jacking Method

1Department of Geotechnical Engineering, Civil Engineering College, Tongji University, Shanghai 200092, China
2State Key Laboratory for Disaster Deduction in Civil Engineering, Tongji University, Shanghai 200092, China

Received 24 January 2015; Accepted 17 April 2015

Academic Editor: Timon Rabczuk

Copyright © 2015 Qing Gong et al. 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.

Abstract

Prestressed composite concrete pipe (PCCP) has been widely used in water-transmission line and has been proven with many advantages over pure concrete or steel pipes, such as high performance with relatively low cost for materials as well as simplified installation and construction process. Recent efforts have been made to enable the PCCP structure suitable for pipe jacking method so as to replace the conventional cut and cover method. In this way, the construction time, disturbance to nearby structures, and the cost can be greatly reduced. In this paper, we present the full-scale experimental and numerical studies of PCCP and the evaluation of fracture and delamination behaviour of the structure when it is used with pipe jacking construction method subjected to various jacking forces and ground conditions.