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| Experimental Research on the Bearing Capacity of Single CFG Pile and Single Plie Composite Foundation |
| ZHANG Tai—an，WANG Jun—qi |
| China Railway Seventh Group Co．Ltd，Zhengzhou，Henan 450016，China |
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Abstract Research purposes:The experimental researches are done in the subgrade experimental section Oil the subsidence control of soft subgrade of high—speed railway，the static loading tests for the bearing capacity of CFG single pile and the single pile composite foundation are done and the analyses are made for the tested data．The results show the method of using CFG single pile—mesh composite structure to reinforce the subgrade is feasible，which can be as the reference to design and construction of the subgrade of high—speed railway．
Research conclusions: construction of the subgrade of high—speed railway．Research conclusions：Through the experimental research in the experimental section，static load test and data analyses，the method for testing the bearing capacity of CFG single pile and the single pile composite foundation is summed up．It shows the static load test can test the bearing capacity of CFG single pile and the single pile composite foundation．The test results can provide the basis for the improvement of CFG single pile and the single pile composite foundation to reinforce the soft subgrade and provide the guide of widely using it to to reinforce the soft subgrade of high—speed railway．
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Received: 25 June 2009
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2009, Vol. 26 
