南方河滩地区软基处理方法

Treatment Method of Soft Soil Foundation in River Beach Areas of Southern China

我国南方地区雨水充沛,河流众多,在河滩地区进行工程建设,极易遇到软土地基,因此,需要研究技术可行、经济合理的软基处理方法。基于工程实例,分析了5种地基处理方法的适应性及优缺点,对各个方案进行技术经济比较后,确定水泥土搅拌桩在本工程中最为适用。水泥搅拌桩可完全适应于河滩地区常见的淤泥及淤泥质土地基处理,且单价相对高压旋喷桩等方法较低。

There are plenty of rain and rivers in southern China.It is common to encounter soft soil foundation during engineering construction in the river beach areas,so it is necessary to study the technically feasible,economic and reasonable soft soil foundation treatment methods.Based on an engineering example,the adaptability,advantages and disadvantages of five foundation treatment schemes are analyzed.After the technical and economic comparison of each scheme,it is determined that the cement deep mixed column is the most suitable in this project.The cement deep mixed column can be fully adapted to the common sludge and mucky soil foundation treatment in the river beach area,and the unit price is lower than that of the high-pressure jet grouting column.