泡沫混凝土材料在软土地基处理中的应用

On Application of Foam Concrete Material in Soft Soil Foundation Treatment

根据浙江省湖州市普遍埋藏深厚淤泥质亚黏土的特点,结合湖州市外环北路工程实例,对泡沫混凝土材料用于轻质路基填料的软土路基处理方案进行分析和论述。路面力学计算分析后认为泡沫混凝土不宜直接做基层用。为减小温度应力,泡沫混凝土顶面宜铺设厚度≥50 cm的路面结构层。同时,根据工程实践经验,对泡沫混凝土在设计和施工时提出几点注意事项,供其他类似工程借鉴。

According to the features of deep sludge cohesive soil buried generally in the ground of Huzhou, Zhejiang, this paper analyses & discusses the use of foam concrete material in soft soil foundation treatment as light weight filler treating combined with Out-ring North Rd. project in Huzhou. It is believed that foam concrete cannot be a base material directly on the basis of pavement mechanics calculating analysis. The results show that the pavement structure layer is more than 50 cm on the top layer of foam concrete to reduce temperature stress. And meanwhile, based on engineering practice experience, some cautions of foam concrete during design & construction are proposed, which can be provided for other similar engineering cases.