CFG桩复合地基和预应力混凝土管桩桩基方案比较研究

Case Study and Comparison of CFG Pile Composite Foundation and Pre-stressed Concrete Pipe Pile Foundation

以郑州市某城中村改造项目工程为例,探讨了如何结合当地施工设备、施工工艺、地域经验和设计经验,合理地选取桩基方案或地基处理方案。对安全性、适用性、经济合理性、技术先进性、施工难易度、成桩质量、环境保护、施工工期等方面进行了分析研究,研究分析表明本工程采用预应力混凝土管桩是最优的方案,为郑州及周边地区工程场地砂层埋深较浅的类似工程提供了经验与参考依据。

Taking an urban village reconstruction project in Zhengzhou city as an example,it was discussed that how to select the reasonable pile foundation scheme or foundation treatment scheme combined with the local construction equipment,construction technology,regional experience and design experience. The aspects of safety,applicability and economic rationality,advancement of technology,the degree of construction difficulty,pile quality,environmental protection,construction period and other aspects are analyzed and studied. The final analysis shows that adopting prestressed concrete pipe pile is the optimal solution for this project,providing experience and reference for similar projects of shallow depth sand ground in Zhengzhou surrounding areas.