Effective Driven Inclined Open Pile (IOP)

Inclined open pile foundations are arranged in the case of large horizontal and pulling loads acting on the pile cluster. Such foundations are typical for buildings and structures of industrial use and tower type. The load-bearing capacity of such foundations depends significantly on the area of load transfer by the lower part of each cluster forming inclined open pile. This area depends on the geometric parameters of the pile and the divergence angle of the inclined open piles. The process of plunging inclined open piles is very labor-intensive and it is not always possible to achieve the designing divergence angle of inclined open in the conditions of the construction site. The inhomogeneity of the ground conditions of the construction site and additional compaction of the soil around the submerged piles influence on ensuring the design divergence angle of piles during plunging. In this paper, the authors propose the use of a pile opener, which allows ensuring the design opening angle of inclined open piles that compacts the soil in the compressed zone between them. The authors conducted laboratory and mathematical studies simulating the process of plunging and diverging of inclined open piles with the use of a pile opener. The authors also determined the influence of the opening angle of inclined open piles on the load-bearing capacity of the pile foundation under vertical and horizontal loading.