Influence of Grouting Pressure on Bearing Capacity of Pile Foundation Under the Sandy Soil

Abstract

The aim of the paper is to investigate the increase of bearing capacity of pile after grouting. In this paper, through the soil grouting reinforcement experiment and the numerical simulation of the bearing capacity of the pile, the increase of pile bearing capacity was investigated and compared with the standard method. Thus The relationship between grouting pressure, cohesion force and internal friction angle was obtained through grouting test. Grouting pressure has a great influence on cohesion force and a slight influence on internal friction angle. The lifting capacity of pile foundation obtained by numerical simulation is close to that of pile foundation obtained by formula. It is feasible to calculate the lifting range of bearing capacity of pile foundation by standard method.