在软土地基上修建高速铁路，其最关键的技术问题就是严格控制路基的工后沉降及列车高速运行时路基顶面的弹性变形。
The most pivotal technical problem of building high-speed railway on soft soil is strictly controlling post-construction settlement of subgrade and its elastic deformation of top surface.
基于弹性理论方法，结合分层总和法，编制了群桩沉降计算程序，并掘此对普通群桩和组合桩群桩性状和沉降计算进行研究。
Based on elastic methods and the layer-wise summation method, a program developed for settlement calculation of pile ground and combined composite foundation.
以土力学及弹性理论为基础，推导出了单桩荷载—沉降曲线的关系式。
Based on soil mechanics and elasticity theory, the relation of single pile load-settlement curve is derived.
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