The Study of Buttresses Spacing Impacts to soil Pressure of Buttress Retaining 

Xuepeng LING

School of Civil Engineering and Architecture, Chongqing Jiaotong University, Chongqing, China

Abstract: This article uses numerical software FLAC3D to search the influence of pressure on the different buttresses spacing for the height of 10 m wall buttressed retaining wall, with the method of layered filling. Research shows that: the larger length of the buttresses spacing, the greater the pressure on walls. In addition, basing on the mechanics characteristics of uniquely buttressed retaining wall, there is the soil arching effect between soil and buttress, which leads to the pressure lower than coulomb's value. The research results can provide the basis for roadbed fill engineering design and construction.

Keywords: Soil pressure;buttresses spacing;placement in layers;academic conference;proceedings