Interaction Analysis between Existing Loaded Piles and Braced Excavation Design Parameters | ||
| JES. Journal of Engineering Sciences | ||
| Article 3, Volume 51, Issue 3, May and June 2023, Pages 189-206 PDF (941.71 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.21608/jesaun.2023.187262.1199 | ||
| Authors | ||
| Mohamed Shaaban* 1; Mostafa Abdel-Naiem2; Abdel-Aziz A. A. Senoon2; Mamdouh A. Kenawi3 | ||
| 1Assist. lecturer, Dept. of Civil. Eng., Faculty of Engineering, Sohag University, Sohag, Egypt | ||
| 2Professor, Civil Engineering Dept., Faculty of Engineering, Assiut University, Assiut, Egypt. | ||
| 3Assoc. professor, Dept. of Civil. Eng., Sohag University, Sohag, Egypt | ||
| Abstract | ||
| Three-dimensional numerical analyses are conducted using the finite element software PLAXIS 3D to gain insight into the interaction behavior between deep excavation and adjacent piled foundations in fully saturated sand. Effects of excavation width and depth, the distance between strut level and the excavation surface with each excavation stage, strut stiffness, diaphragm wall stiffness, and diaphragm wall depth are examined during the adjacent excavation. In practice, incorrect values of the braced excavation design parameters may result in an uneconomical or even unsafe design. The analyses revealed that increasing the excavation width or depth has a significant influence on the adjacent pile group behavior. Additionally, it is also observed that reducing the distance between the strut level and the excavation surface with each excavation stage, increasing the struts stiffness, increasing diaphragm wall thickness or depth, and reducing the horizontal or vertical span of struts can assist to reduce settlement and tilting of the pile group induced by the adjacent excavation. | ||
| Keywords | ||
| Braced excavation; Fully saturated sand; Excavation geometry; Design parameters; Pile group behavior | ||
| References | ||
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