Abstract：Based on the characteristic of vehicle loads and the actuality of over loading of most vehicles in China，vehicle loads are simplified as equivalent static load which was assumed as three kinds of distribution forms： concentrated distribution，rectangle distribution and zonal distribution；and their computational formula were educed respectively by using Boussinesq and Flamant answers. And then the lay wise summation method was applied to calculate the settlement of highway in soft ground induced by super-heavy vehicle loads. By applying the quasi-static method，the influence of settlement of highway on the soft ground induced by super-heavy vehicle loads performed on four sections of Shanghai-Nanjing highway were studied in the three different distribution forms of vehicle loads，which indicate that the settlement can reach to several centimeters and the depth influenced by super-heavy vehicle loads is about 7.1-11.9 m.
