Abstract：Research purposes:Through a engineering example of inter － city none － ballast track super railway embankment foundation reinforced，this paper introduces the calculated method of PHC composite foundation bearing capacity and settlement，the common problem and precautionary measures in the construction steps and the process etc．And this paper also resolves the key technique of inter － city none － ballast track super railway embankment foundation settlement．
Research conclusions:The PHC body quality stability，penetration capacity，single pile bearing capacity and strength are high，price is lower，construction speed is fast，and pile’s body is convenient detected，which increase the engineering quality and economic benefit． So that supplies a kind of safe and stable foundation reinforced means in the inter － city none － ballast track super railway embankment foundation settlement key technique．
王丽云,王军涛. 预应力混凝土管桩的设计及施工研究[J]. 铁道工程学报, 2011, 28(6): 6-9.
WANG Li － yun，WANG Jun － tao. Research on the Design and Construction of PHC. 铁道工程学报, 2011, 28(6): 6-9.
Han Zhixia，Cui Junjie． Solution to the Control of Subgrade Settlement for Passenger Dedicated Line［J］．
Journal of Railway Engineering Society，2009(2) : 25－29．［5］ Geddes J． D． Stresses in Foundation Soils Due to Vertical Subcurface Load［J］． Geotechnique，1966(3) : 231－255．
Yu Lei． Design and Application of Prestressed Tubular Pile in Treating Soft Soil Foundation of Wenzhou － Fuzhou Railway Line ［J］． Journal of Railway Engineering Society，2007(S) : 108－112．
［7］ GB 50007—2002，建筑地基基础设计规范［S］．
GB 50007—2002， Code for Design of Building Foundation［S］．
［8］ TB10621—2009，高速铁路设计规范［S］.
TB 10621—2009，Code for Design of High Speed Railway［S］．
［9］ GB 50010—2002，混凝土结构设计规范［S］．
GB 50010—2002， Code for Design of Concrete Structures［S］．
［10］ DBJ/T5—22—98，预应力混凝土管桩基础技术规范［S］．
DBJ /T 5—22—98，Technical Code for Prestressed Tubular Pile Foundation［S］．
2011, Vol. 28 
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