NUMERICAL SIMULATION ANALYSIS OF LANDSLIDE SURGE DISASTER IN HUANGBU VILLAGE OF YUANJIANG RIVER BASED ON WATER WAVE DYNAMIC MODEL

The landslide in Huangbu village of the Yuanjiang River occurred on June 24, 2017. The resulting surge damaged many houses. It also injured many people. At the same time, there are about 230000 cubic meters of rock and soil around the landslide. They may cause greater disasters. In this paper, we used the water wave dynamic model to repeat the surge disaster caused by Huangbu village landslide. Then we predicted what will happen if the rock and soil around slides. The results show that Naixin model is suitable for surge simulation. Affected by heavy rainfall, the landslide in Huangbu village, Yuanjiang River occurred on June 24, 2017, with a landslide volume of 161000m³. The surge caused damage to houses across the river and injured many people. At the same time, there are 230000 cubic meters of hidden dangers on both sides of the landslide, which may cause greater disasters. Therefore, based on the repetition of previous landslide surge, this paper verifies the rationality of the model, then predicts the surge disasters that may be caused by landslide hidden dangers on both sides, and divides the potential risk range, so as to provide a basis for disaster prevention and reduction.