Aiming at the coastal soft soil foundation in revetment project of Mirsarai,Bangladesh,we apply the drainage plate soft foundation consolidation settlement method for processing,analyze the material characteristics of plastic drainage plate,surcharge plan,control points of construction quality,construction problems.Based on the monitoring data of the drainage process after setting drainage board and the variation of the settlement after full load,we use three consolidation settlement models such as Hyperbolic equation,Asaoka equation and exponential function equation to simulate the settlement data,predict the settlement trend of the foundation,and obtain the final settlement.The results show that the fitting degrees of the three methods are high,and the final settlements of the three mileages are 161.04 mm,381.68 mm and 369.80 mm respectively.