盘锦地区软土变形参数的试验

Test of deformation parameters of soft soils in Panjin area

通过螺旋板载荷试验确定地基土的变形模量,并使之与压缩模量建立一定的关系;通过进行深度对地基土压缩模量、变形模量的影响分析,得出:压缩模量和变形模量随深度加深而增大;通过进行载荷板面积对变形模量的影响分析,得出:变形模量随着载荷板宽度和载荷大小而变化.同时对等效变形模量进行非线性分析,得到4个参数,从而为盘锦地区的勘察工作提供可靠的依据.

The deformation modulus of foundation soil is determined via the screw plate load test, so as to establish the relationship between deformation modulus and compression modulus. The effects of soil depth on compression modulus and deformation modulus are analyzed; and it is shown that the compression modulus and deformation modulus are increased with the increase of soil depth. Meanwhile, the effect of loading plate area on deformation modulus is analyzed; and it is shown that the deformation modulus is varied with the width of loading plate and loading value. Finally, the nonlinear analysis of equivalent deformation modulus is made; and four parameters are obtained so as to offer a basis for investigation works in Panjin area.