Numerical Simulation on the Effect of Infiltration and Evapotranspiration on the Residual Slope

Soil suction plays an important role in governing the stability of slopes. Environmental sustainability could be jeopardized by hazards, such as slope failures (forest destruction, landscape alteration, etc.). However, quantification effect on is a challenging task soil usually affected precipitation and evapotranspiration. Numerical simulation estimation contour due to rainfall evapotranspiration long-term widespread monitoring rarely conducted. The result numerical highly dependent accuracy input parameters. Hence, verifying simulation. conventional tensiometer limited 100 kPa suction, it hard verify performance where higher than kPa. osmotic developed Nanyang Technological University (NTU) can overcome this problem. It now possible monitor changes (up 2500 kPa) for extended period field. In study, procedure was proposed estimate residual based data. carried out properties geometry from Jurong Formation Singapore. Changes evaporation were simulated compared with readings NTU tensiometers installed at 0.15 m 0.50 surface observed that able capture variations suctions accurately greater depths. shallow depths, erratic difficulties capturing transpiration.