Abstract: The settlement, lateral displacement and pore water pressure for four schemes to consolidate the soft soil roadbed of the second Xiaoshan-Ningbo railway and the effect on the existing railway were observed on site and analyzed. These consolidation schemes are plastic plank, sand well and fibred fabric and cement-mixed pile.The observational result shows that consolidation of cement- mixed piles has more advantages over the three other schemes in reducing the settlement, lateral displacement and the influence on the existing railway and improving pore water pressure and is the best scheme.