الفهرس 
Numerical study of the interaction between strutted excavations and adjacent piles
English SummaryOnly 14 pages are availabe for public view
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Abstract
This research comprises the use of 2D numerical modeling to evaluate the performance of strutted excavations and their effect on adjacent existing piles. PLAXIS 2D was adopted, as a modeling tool, in this research. A verification model was used to validate the simulation of a documented case study. The simulated case study included the construction of a cut-and-cover tunnel as part of a new Mass Rapid Transit line in Singapore.The results of the numerical study were compared to the full-scale field measurements. Afterward, the analysis was extended to investigate the interaction between the retaining system and existing piles located behind the retaining wall. A parametric study was conducted to examine the effect of different parameters, including excavation depth (H = 4 m to 16 m), retaining wall-length (L = 8 m to 40 m), spacing between struts (S = 2 m to 4 m), axial loads on pile (N = 0 kN to 1000 kN), and the horizontal distance between the existing pile and the retaining wall (x = 1.5 m to 40 m). The structural performance of the retaining wall and adjacent piles are reported in terms of horizontal displacements and bending moments