Influence of Different Ways of Foundation Treatment on the Differential Settlement of Road- Tunnel Composite Structure

Abstract:

In order to insure the safe and reliable road-tunnel composite structure, it is important to consider the influence of different foundation treatment ways on the differential settlement of the composite structure. Based on the nonlinear FEM, connecting with the western corridor connecting project from Shenzhen to Hong Kong in China, a numerical model has been established to estimate the settlement of the road- tunnel composite structure under three different foundation treatment ways, such as pressure grouting, PHC piles (prestressed high-strength concrete piles) and foundation in natural state. This study shows that the influence of the different foundation treatment ways on the transverse and longitudinal differential settlement of the composite structure of road-tunnel is strong. The results from this study provide a useful guideline for settlement control of other similar projects composed of tunnel and road structure.

• Periodical: Advanced Materials Research (Volumes 168-170)
• Pages: 323-329
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.168-170.323
• Online since: December 2010
• Authors: Zhen Liu, Cui Ying Zhou, Wei Huang
• Keywords: Differential Settlement, Finite Element Model (FEM), Foundation Treatment Way, Road-Tunnel Composite Structure

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