Spatial planning method and system for silt dam

The invention discloses a silt dam space planning method and system, and relates to the technical field of safety evaluation, and the method comprises the steps: collecting land type information and images at two sides of a silt dam construction site as land type training samples, and training and inputting a YoV3 neural network model; putting a to-be-identified land image into the trained YloV3 neural network model and presetting constraint conditions, when the to-be-identified land type meets the constraint conditions, obtaining a channel image, and inputting the channel image into a depth calculation model to calculate the average depth of a channel; calculating topographic data according to the average depth, collecting geological data and site building data of the silt dam at the same time, and taking the topographic data, the geological data and the site building data of the silt dam as an evaluation data set; and constructing a fusion convolution model, setting an addressing threshold value, and if the