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Mathematical Problems in Engineering
Volume 2018 (2018), Article ID 9714901, 10 pages
https://doi.org/10.1155/2018/9714901
Research Article

Seepage Flow Model and Deformation Properties of Coastal Deep Foundation Pit under Tidal Influence

Geotechnical and Structural Engineering Research Center, Shandong University, Shandong, China

Correspondence should be addressed to Can Xie; moc.361@udsnaceix

Received 6 January 2018; Revised 12 February 2018; Accepted 11 March 2018; Published 16 April 2018

Academic Editor: Qin Yuming

Copyright © 2018 Shu-chen Li 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

As the coastal region is the most developed region in China, an increasing number of engineering projects are under construction in it in recent years. However, the quality of these projects is significantly affected by groundwater, which is influenced by tidal variations. Therefore, the regional groundwater dynamic characteristics under tidal impact and the spatiotemporal evolution of the seepage field must be considered in the construction of the projects. Then, Boussinesq function was introduced into the research to deduce the seepage equation under tidal influence for the coastal area. To determine the spatiotemporal evolution of the deep foundation pit seepage field and the coastal seepage field evolution model, numerical calculations based on changes in the tidal water level and seepage equation were performed using MATLAB. According to the developed model, the influence of the seepage field on the foundation pit supporting structure in the excavation process was analyzed through numerical simulations. The results of this research could be considered in design and engineering practice.