Abstract：Research purposes: The high － speed railway has a very strict requirement on the post － construction settlement of the foundation and the post － construction settlement of the foundation belongs to the residual settlement after rail laying． The appropriate calculation method for the foundation settlement should be chosen to satisfy the requirement of the post － construction settlement of high － speed railway，and the appropriate measures should be taken according to the calculation result of the settlement．
Research conclusions: The calculation thicknesses of the compression layer of the soft － soil high － compression foundation and the medium － compression clay foundation should be determined according to that the additional stress is equal to the 0． 1 time of its stress． The calculation thicknesses of the compression layer of the non － clay foundation and the low － compression clay foundation should be determined according to that the additional stress is equal to the 0． 2 time of its stress． The settlement in the reinforced range of the CFG pile composite foundation should be calculated by using the soil composite compression modulus method． When the settlement of the subjacent bed is calculated by using the equivalent entity method，its calculation result is rather closed to the real settlement． When the settlement in the reinforced range of the bored cast － in － place pile structure foundation is calculated with the pile theory and the settlement of the subjacent bed is calculated by using the stress diffusion method，their calculation results are rather closed to the measured settlement．
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LIAO Jin － xing. Control，Test and Analysis of Soft Foundation of High － speed Railway. 铁道工程学报, 2013, 30(3): 11-15.
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2013, Vol. 30 
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