Introducing Some PTF for Soil Physical Properties in Bank of Yangtze River, Nanjing District

Pedotransfer function (PTF) is a new technique for predication of the soil physical properties (SPP).Generally, SPP such as dry density, porosity, void ratio, soil hydraulic conductivity are estimated by asemi-empirical equation. The objective of this research was developing some PTF for estimation ofSPP in bank of the Yangtze River, in Nanjing city, Jiangsu province, China. The SPP that has beenconsidered in this research were: wet density ( ρw), dry density ( ρd ), void ratio (e), liquid limit (LL)and plastic limit (LP). All soil analysis carried out by the soil geotechnical analysis standard method.650 series of data were used for calibration and more than 100 series data for verification. The resultshows that most of SPP in the study area can be significantly estimated by wet density ( ρw). Forinstant ρd = 1.474 + 1.531 × ρw and L1= 142.766- 54.898 × ρw. Base on the results a computer programhas been developed to estimate the SPP.

کلیدواژه ها:

Soil properties ، Pedotransfer function ، Yangtze River ، Nanjing