Abstract: Soft soil parameters are significant different at various regions and depths. These soil parameters are the important basis for the soil improvement and the engineering design. Therefore, the statistics and analysis of the soft soil parameters have important significance for the engineering projects. A total of 302 borehole information and 2500 detailed geotechnical test data of the coastal area on the west Bank of the Pearl River were collected. Based on this data, the distributions of soft soil parameters were analyzed. The relation of each parameter with depth is discussed, and the correlation among these parameters is also investigated. The results show that, the average moisture content is 41.5%, the average void ratio is 1.15, and the average plasticity index is 15.9. The above-mentioned parameters decrease with the increase of the depth. The average cohesion is 15.2 kPa and the average internal friction angle is 12.2°. These properties increase with the increase of the depth. The correlation of soft soil properties can be divided into three levels, water content void ratio, water content-liquid index, liquid index void ratio are strongly correlated. Compression modulus-water content, cohesion plasticity index plasticity index, internal friction angle cohesion internal friction angle are weakly correlated, and others are not correlated with each other.

Key words: West Bank of Pearl River Estuary, Soft Soil Parameters, Statistical Distribution, Correlation