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针对石灰岩地区的特点因地制宜地采用了预应力管桩基础，利用其桩侧摩阻力来达到设计承载力的要求，并介绍了管极的试验、设计及施工过程，对今后类似地区的施工有一定的参考作用。
According to the characteristics of limestone area, the prestressed pipe pile foundation is adopted according to the local conditions, the frictional resistance of the pile is used to meet the requirements of design bearing capacity, and the experiment, design and construction process of the pipe pole are introduced. The reference role.