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| Research on the Settlement Characteristics of Subgrade with Piled Raft Foundation under Conditions of Thick Compressible Foundation |
| CUI Wei-xiao |
| The Third Railway Survey and Design Institute Group Corporation, Tianjin 300142, China |
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Abstract Research purposes：This paper researched the settlement characteristics of subgrade with piled raft foundation under conditions of thick compressible foundation and put forward the methods of settlement calculation and parameter selection, which can be used to design reference of settlement control of high speed railway subgrade.
Research conclusions：There are obviously different about bearing and settlement distortion characteristics between single pile and pile group. The settlement obtained by testing in reinforced area is caused actually by the stab deformation (piles pierce into substratum). The Geddes should be preferred to use in settlement analysis of the piled raft foundation.
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Received: 26 December 2008
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2009, Vol. 26 
