Effect on The Lateral Force to The Retaining Wall by Construction of Soil-cement Column

Abstract

As the increasing demand for housing, the house built on cut earth or embankment has been increasing. In order to effectively use the land for housing, houses in the vicinity of the retaining wall are often built during reclamation. A problem sometimes occurs in the vicinity of the existing retaining wall due to the displacement. However, because the mechanism is not clear, it is difficult to carry out the suitable countermeasure to the displacement of the retaining wall.
In order to make clear the mechanism of deformations of the retaining wall, we carried out the in-situ construction of the soil-cement column near the retaining wall of the real size, and measured the earth pressure and displacement of the retaining wall. In addition, based on the results measured by the in-situ experiment, two dimensional elastic FEM analysis was also carried out and influence of the distance between the retaining wall and soil-cement column was numerically simulated.