Abstract
This paper did simulated erosion experiment indoors to study influence of precipitation intensity, grass density, slope gradient, protection type on erosion modulus of pebbly clay slope in airport. The results show that anti-erosion of slope is better and influence of slope on erosion modulus is smaller as grass density is higher. Compared with protecting slope only with grass, erosion modulus decreases about 60%~80% when slope is protected with geosynthetics. Geocell is slightly better than the geogrid.
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