Analysis of Engineering Geological Mechanics on the Jiasikou Debris Flow

The debris flow in Jiasikou gully was a typical gully debris flow, which was located in Li xian, Sichuan province, China. According to the basic characteristics of the valley and the debris flow, we analyzed the formation conditions of the debris flow in Jiasikou gully, including topography, water source and sediment source. And we calculated the main dynamic parameters, such as bulk density, flow rate, flow capacity, sediment flush-out and impulse power. Combining the features of above mentioned, we discussed the development trend of the debris flow, and put forward recommendation that blocking dam and diversion dike engineering should be carried out.