抄録
Several centrifuge model tests are conducted on the purpose of exploring the failure trend or failure mode of the deposits slope under itself weight and rainfall. Deposits are special geological body between soil and rock which contains the components of complex structures such as soil with gravel, debris and detritus. Because of the looseness of soil structure and the large soil void ratio, the landslide easily takes place in the deposit slope, especially under rainfall. The rainfall during the centrifugal operation is simulated by air-blast atomizer. The slope surface is observed through the real-time monitoring system. The displacement field of the slope section caused by the rainfall is used to reveal the deformation and failure mechanism. Furthermore, it takes into consideration the deposit slope reinforced with slope protection network. The Particle Image Velocimetry method is used to analyze the changes of displacements of deposits slope before and after treatment comparatively. The tests results show that the failure mode of deposits slope is different from the traditional circular slide under middle rainfall conditions, whereas the slope protection methods such as slope protection network plays an important role in reinforcing the deposits slope.
