摘要：When deep cement mixing method (DCM) uses cement as solidified material to treat marine soft foundation, the strength of soil is different due to the diversity of water content, void ratio and particle fineness. Based on the Pearl River Estuary DCM project, this paper uses a variety of PO.42.5 cement and marine soft soil in the Pearl River estuary area to carry out indoor mix proportion tests. There are four kinds of soil: flowing mud, silt, muddy soil and silt. The test results show that the strength of cement soil in different soil layers is diversity. The effect of cement solidification treatment on silt and muddy soil is good, followed by silt, and flowing mud is slightly poor. The selected PO.42.5 cement can meet the strength requirements of DCM.
