浅层真空预压法在加固新吹填粉土及粉质黏土地基中的应用

对浅层真空预压法加固后的软土地基加固效果进行分析,结果表明,在插板期地表产生较大的沉降,插密板短板可以达到较快加固吹填土层的效果;加固后软土地基土层含水量、孔隙比降低,地基承载力提高,可初步满足建设场地的需要。说明浅层真空预压法对吹填粉土及粉质黏土地基的加固是有效的,浅层真空预压法对于处理有较厚吹填土层的软土地基是比较成功的,可在类似的工程中应用。

Application of Surface Vacuum Preloading Method in Reinforcing Dredge Fill Silt and Silty Clay Foundation

This paper analyzes the reinforcement effect of soft soil foundation after using the surface vacuum preloading method;the results show that,the earth＇s surface appears large settlement when inserting plastic drainage board in it;Insert dense short boards can achieve rapid effect of reinforcing the filling soil.The water content of soft soil foundation and the porosity ratio are reduced,foundation bearing capacity is improved after reinforcement,and the demand of construction site can be satisfied initially.It declares the surface vacuum preloading method is effective for soil reclamation of silt and silty clay foundation.It is analyzed that surface vacuum preloading method to deal with a thick dredge fill was successful,can be used in similar projects.