The pile length may be a maximum of about 60 metres (200 feet) but is usually much less.
The influencing factors are analyzed according to the calculation result of effective pile length.
The effects of pile length and alignment on the attained ultimate load are experimentally investigated.
The optimum pile length, cross section dimension and reinforcement details may be found by using developed algorithm.
The result shows that both the Poisson ratio of soil and pile diameter have impacted the effective pile length.
The equilibrium of transferred loads from the superstructure, friction forces and tip bearing forces are considered for the design, which leads to optimum pile length.
The influence of changing pile length, concrete conductivity, pile diameter and concrete cover are also discussed in light of their energetic implications.
The support behavior of the micropiled raft is evaluated for various conditions, such as soil type, pile length, and installation angle.
The most important contribution of this research for designers is supplying an efficient tool to obtain optimum pile length and reinforced concrete design of pile foundation systems.
Moreover, the effects of parameters, such as pile length, pile number, raft thickness and load types, on the piled raft behavior are investigated.
The regression, which is calibrated by a finite element model, allows the direct computation of the pile length required for serviceability limit state design of deep foundations.
