Abstract
Tunneling may cause serious damage to the existing structures. This is because the tunneling is an unloading process which can change the stress along the existing pile. Therefore, studying the influence of tunneling on the existing pile foundation is important. This study uses an experimental model to evaluate the influence of the tunneling on the existing pile. A numerical analysis using Plaxis 3D software was used to back analyze the experimental results. The tunneling was simulated in the lab using the volume loss (VL) technique. The study concluded that there is a zone in which most settlements of pile occurred. The study shows that when the lateral distance between pile and tunnel to tunnel diameter ratio (E/D) = 0.0, the pile settlement to tunnel diameter ratio (δnet/D)max is equal to 0.52%, and when E/D = 2.0 it was 0.17%, which means that (δnet/D)max is raised by 206% when (E/D) decreased from 2 to 0.0. These results indicate that the zone of influence in the lateral direction (E) is about 2.0D. The zone of the influence in terms of clearance distance (Z) is greater than 2.0D.
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Al-Zuhairi, O.I., Al-Omari, R.R., Al-Soud, M.S. (2021). Experimental and Numerical Analysis of an Existing Single Pile Movement Due to Tunneling in Sandy Soil. In: Karkush, M.O., Choudhury, D. (eds) Modern Applications of Geotechnical Engineering and Construction. Lecture Notes in Civil Engineering, vol 112. Springer, Singapore. https://doi.org/10.1007/978-981-15-9399-4_8
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