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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。
Soft soil foundation is often encountered in the construction of roadbed problems, how to choose the appropriate construction methods to become a hot topic in today’s construction technology. In combination with engineering examples, the reinforcement mechanism of CFG pile combined with sand pile to treat soft soil foundation is elaborated. The layout of CFG pile and sand pile and the construction process and quality control measures of CFG pile and sand pile are discussed. Engineering practice shows that the CFG pile combined with sand pile technology to improve the engineering properties of soft soil after more obvious, quick construction, low construction cost, with significant economic and social benefits.