CFG桩结合砂桩处理软土地基技术

软土地基是路基施工中经常遇到的施工难题,如何因地制宜地选择施工方法成为当今施工技术讨论的热点。结合工程实例,系统阐述CFG桩结合砂桩处理软土地基加固机理,论述CFG桩与砂桩的布置形式及CFG桩与砂桩的施工工艺流程、质量控制措施。工程实践表明,CFG桩结合砂桩技术处理软土后其工程性质改善较明显,施工快捷,工程造价低,具有显著的经济效益和社会效益。

Treatment of Soft Ground with Cement Flying-ash Gravel Piles and Sand Piles

Softground is the subgrade construction frequently encountered problems of construction, how to select construction methods suited to local conditions become a hot topic in construction technology. Engi- neering examples systematically expounded CFG Piles and soft sand pile reinforcement mechanism, dis- cussed the CFG pile and sand pile layout and the CFG pile and sand pile construction process, quality con- trol measures. Engineering practice shows that, CFG Piles and piles of soft sand, after the engineering properties of soil improvement is obvious, quick construction, low construction cost, with significant ecoriomic and social benefits.