论文部分内容阅读
小直径桩复合地基处理施工技术发展迅速,在岩溶地区的地基处理施工中应用逐渐广泛,但目前还没有小直径桩复合地基的设计规范及施工技术规程。本文通过试验分析比较,结合工程实例验证,详细介绍小直径的桩体材料可因地制宜,采用普通硅酸盐水泥、粉煤灰、碎石、石屑按混凝土强度等级C5配比施工,既可满足小直径桩复合地基承载力要求,又有较好的技术经济效益。
The construction technology of small diameter pile composite foundation is developing rapidly. It has been widely used in foundation treatment and construction in karst areas. However, there are no design codes and construction technical regulations for small diameter pile composite foundation. In this paper, the experimental analysis and comparison, combined with engineering examples to verify, detailed introduction of small diameter pile material can be adapted to local conditions, the use of ordinary Portland cement, fly ash, gravel, stone chips concrete strength grade C5 ratio construction, Small diameter pile composite foundation bearing capacity requirements, but also a better technical and economic benefits.