New Analytic Method for Subgrade Settlement Calculation of the New CFG Pileslab Structure
Publish Year: 1395
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJE-29-10_015
تاریخ نمایه سازی: 12 دی 1395
Abstract:
At present, reducing subgrade settlement of soft soil foundation is a key problem in high-speed railwayconstruction. Pile-slab structure is a widely-utilized form of foundation structure to reduce thesubgrade settlement in China. In order to save the engineering cost for high-speed railway constructionin developing countries, the author developed a pile-slab structure and named it as the new CFG pileslabstructure. This work analyzed the settlement controlling effect of new CFG pile-slab structure andsummarized two calculation methods on its subgrade settlement which are further formulated into ananalytic method. Three methods were used to calculate the subgrade settlement of CFG pile-slabstructure for a soft soil foundation in Chinese Shanghai-chengdu high-speed railway. The researchshowed that: (1)The settlement controlling effect of CFG pile-slab structure can satisfy the requirementof high-speed railway construction. (2) The new analytic method is proved to be more accurate and canreflect the mechanism of load transferring.Furthermore,the new analytic method can providetheoretical guidances for engineering designs and constructions of the CFG pile-slab structure.
Keywords:
CFG PileNew Pile-slab StructureSettlement CalculationNew Analytic Method
Authors
D.B Zhang
School of Civil Engineering, Hubei Polytechnic University, Huangshi, China
Y Zhang
School of Civil Engineering, Hubei Polytechnic University, Huangshi, China
T Cheng
School of Civil Engineering, Hubei Polytechnic University, Huangshi, China
J.Y Yuan
School of Civil Engineering, Hubei Polytechnic University, Huangshi, China