论文部分内容阅读
文章结合高速公路改扩建工程中的接长涵洞实例,通过对PTC管桩复合地基变形机理的分析,对接长涵洞基底PTC管桩复合地基的承载力和沉降量采用不同计算模式进行了计算,得到传统的只满足基底承载力要求的地基处理设计方法会造成基础沉降量不能满足规范要求的结论,为PTC管桩复合地基作用机理理论研究、沉降计算分析方法等方面提供了依据和思路。
Combined with the examples of long culverts in highway reconstruction and expansion project, the paper analyzes the deformation mechanism of PTC pile composite foundation by using different calculation modes to calculate the bearing capacity and settlement of the composite foundation of PTC culverts with long culverts, and obtains The traditional design method of foundation treatment, which only meets the requirements of bearing capacity of the foundation, will lead to the conclusion that the foundation settlement can not meet the requirements of the code, which provides the basis and train of thought for the theoretical study on the mechanism of settlement of the composite foundation of PTC pipe.