• Ahamed Rushedy Towfeek
• Mostafa Abdou
• Waleed Hassan

When retaining walls are constructed in-situ and deep excavations are made adjacent building horizontal and vertical displacements occur for the soil underneath adjacent building foundation. These soil movements due to excavation induce large settlement which may lead to structural distress and failure of the foundations supporting existing structures. Deep excavations are designed to be safe and to kept deformations due to excavation at acceptable limits on adjacent structures. In this paper, 3D Finite element model is developed using PLAXIS 3D foundation software program to represent the performance of concrete solider pile with steel sheet pile lagging wall on the deformation characteristics of ground below adjacent building at different locations. The analysis is carried out considering non-linear behavior of soil using Mohr-coulomb failure criteria. The goals of this research are studying the factors affecting on the behavior of ground movement below adjacent building foundations such as excavation depth, pile diameter, soil type, adjacent building foundation depth, and the horizontal distance between adjacent building and excavation area. The effect of using concrete cap beam with different depth on the vertical and horizontal displacement of ground below adjacent building foundation was studied.

Solider pile, Lagging, Movements, Deep excavation, Adjacent buildings, Cap beam

"EFFECT OF DEEP EXCAVATION SUPPORTED BY CONCRETE SOLIDER PILE WITH STEEL SHEET PILE LAGGING WALL ON ADJACENT EXISTING BUILDINGS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.4, Issue 11, page no.7-14, November-2017, Available :http://www.jetir.org/papers/JETIR1711002.pdf

"EFFECT OF DEEP EXCAVATION SUPPORTED BY CONCRETE SOLIDER PILE WITH STEEL SHEET PILE LAGGING WALL ON ADJACENT EXISTING BUILDINGS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.4, Issue 11, page no. pp7-14, November-2017, Available at : http://www.jetir.org/papers/JETIR1711002.pdf