Abstract:

The soil structure in coastal areas of Bac Bo Delta is present commonly of soft soil with its special characteristics, diverse types of origin, composition and properties. According to the age, origin and basic properties, soft soils in this area are divided into 6 types: 1 -amQ23tb3, 2 - ambQ23tb2, 3 - abQ23tb2, 4 - ambQ23tb1, 5 - mQ21-2hh2, 6 - mbQ21-2hh1. The distribution of soft soil is from the ground to a depth of 15 to over 30m, ascending towards the sea. General characteristics of the soft soil types of the study area: containing organic with popular content from 3-5%, salt 0.3 - 0,6%, low bearing capacity (Ro <1 kG/cm2), large deformation (Eo <30 kG/cm2 ).