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武广客运专线对路基沉降要求极为严格,工后沉降不超过15 mm。桩网结构是一种能够满足加固深度超过20 m、路堤填方高度大于3 m、且能较好控制路基残余变形的结构物。通过典型工点对桩网结构在工程中的应用进行了较为系统的分析。结果表明,采用桩网结构能满足路基工后沉降不超过15 mm的要求。
Wuhan-Guangzhou Passenger Dedicated Subgrade Settlement requirements are extremely strict, post-construction settlement does not exceed 15 mm. The pile-net structure is a structure that can meet the requirement of more than 20m of reinforcement depth and more than 3m of embankment fill height, and can well control the residual deformation of subgrade. Through a typical work station on the pile network structure in the application of a more systematic analysis. The results show that the pile-net structure can meet the requirement of post-construction settlement of subgrade less than 15 mm.