预压法在以路堤填土自重作为预压荷载的软土地基加固处理中有其适用范围。通过Fellenius公式和地基强度增长公式,建立在以路堤填土自重作为预压荷载的软土地基,在加固处理设计中的选用原则为填土高度H应满足Hmin≤H≤Hmax。通过在铁路路堤地基加固处理设计中的应用实例,证明选用原则的适用性。 Preloading method in the embankment fill their own weight as a preloading of soft ground reinforcement has its scope of application. Based on Fellenius formula and foundation strength growth formula, the soft ground foundation with embankment filling weight as preloading load is established. The selection principle of reinforcement design is that the filling height H should satisfy Hmin≤H≤Hmax. Through the application examples in the reinforcement design of the railway embankment foundation, the applicability of the principle of selection is proved.