Behaviour of Contiguous Piles Group with Different Pile Diameters in Sandy Soil under Vertical Loading | ||
| Engineering Research Journal | ||
| Article 24, Volume 172, Issue 0, December 2021, Pages 412-423 PDF (469.23 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/erj.2021.211048 | ||
| Authors | ||
| Marwa, M. Mohamed* 1; Amr, M. Radwan2; Mona, B. Anwar3 | ||
| 1Ph.D graduate student, Civil Engineering Department, Helwan University, Cairo, Egypt | ||
| 2Professor, Civil Engineering Department, Helwan University, Cairo, Egypt | ||
| 3Professor, Civil Engineering Department, The German University in Cairo -Egypt. | ||
| Abstract | ||
| This study deals with identifying the behavior of contiguous pile groups subjected to vertical load and the corresponding soil failure. A wide range of geometrical parameters were represented in order to study the effect of these parameters on the behavior of pile group including spacing between piles and diameter of piles (D) in the group. To study the effect of diameter, the piles used in the laboratory tests were 3 and 5 cm in diameter and 35cm in length. D to 2D spacing between piles were also adopted. The sand used in the experimental program had two different densities. The tests were executed in a wide tank containing the sand as well as models of pile groups. Using the experimental model results, relations between load and settlement were utilized to estimate the bearing capacity of the pile group. From the test results, it was found that increasing the spacing between piles and diameter of piles in a group causes increase of the bearing capacity of the pile group. However, decreasing the pile spacing reduced the load capacity of the pile group. | ||
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