The world cultural heritage—Fujian earth building has often affected by the typhoon and extreme weather,and the durability of its structure has decreased continuously.Using statistical methods of soil and water loss and field test,rammed earth erosion loss rule and loss measurement formula were studied,revealing the loss mechanism of rammed earth by wind and rain erosion,rainfall infiltration wall material weakening performance,and wind driven rain hiting the walls,resulting in material particle splash erosion and denudation.And it was proved that the raindrop impact load is the direct motive erosion loss.Combined with the local meteorological data,the rammed earth annual erosion was calculated,which can be used to predict the residual life of the wall,and to provide a adaptive scientific basis for protection of Fujian earth building.
