Abstract
A pile foundation is commonly adopted for transferring superstructure loads into the ground in weaker soil. They diminish the settlement of the infrastructure and augment the soil-bearing capacity. This paper emphases the pile-driving effect on an existing adjacent cylindrical and semi-tapered pile. Driving a three-dimensional pile into the ground is fruitfully accomplished by combining the arbitrary Lagrangian–Eulerian (ALE) adaptive mesh and element deletion methods without adopting any assumptions that would simplify the simulation. Axial forces, bending moment, and lateral displacement were studied in the neighboring already-installed pile. An investigation was made into some factors affecting the forces and bending moment, such as pile spacing and the shape of the already-installed pile (cylindrical, tapered, or semi-tapered). An important response was observed in the impact of the driven pile on the nearby existing one, the bending moment and axial forces were not negligible, and when the pile was loaded, it was recommended to consider the coupling effect. Moreover, the adjacent semi-tapered pile was subjected to less axial and lateral movement than the cylindrical one with the same length and volume for taper angles smaller than 1.0°, and vice versa for taper angles greater than 1.4°.
Highlights
Poulos [5] revealed that the driving of a pile involves a ground movement which will result in additional forces, bending moment, and displacement of nearby foundation structures
The bending moment and axial force experienced by piles during the event would have exceeded the bending moment and axial force of the section
Madheswaran et al [46] revealed that the extreme of the vibration energy affecting adjacent structures was transferred by the Rayleigh waves that circulate near the ground surface
Summary
Peak particle acceleration (PPA), displacement (PPD), and velocity (PPV) could be used to estimate the ground vibrations. PPV can better evaluate the structure’s start of damage than PPD and PPA. It is generally used for measuring structure damage [39,40]. Regarding the evaluation in terms of velocity, the maximum is one experience by particle subjected to vibration.
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