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预应力管桩复合地基,具有处理深度大、施工填土快、工期短和造价高的特点,伴随着我国高速公路事业的高速发展,高速公路改扩建工程也将会越来越多,面对改扩建工程更为复杂的施工条件和降低对周边高速公路以及环境的影响使得预应力管桩复合地基拥有极为广阔的应用空间,本文主要通过简要介绍预应力管桩工艺在广清高速公路改扩建工程软基处治中的应用,为后续的项目建设提供一定的借鉴。
The prestressed pipe pile composite foundation has the characteristics of large processing depth, fast construction filling, short construction period and high cost. Along with the rapid development of the expressway cause in our country, there will be more and more expressway expansion projects. The more complicated construction conditions of the extension and expansion project and the reduction of the impact on the surrounding expressways and the environment make the prestressed pipe pile composite foundation have a very broad application space. This paper mainly introduces the prestressed pipe pile technology in the expansion of Guang-Qing Expressway Application of engineering soft foundation treatment, provide some reference for the subsequent project construction.