Method for accurately constructing dam filling warehouse-dividing model based on web terminal

The invention provides a method for accurately constructing a dam filling sub-warehouse model based on a web end, relates to the field of model creation, and solves the problems of large model volume, seriously limited application scenes, low model repeated utilization rate and incapability of accurately creating a sub-warehouse model caused by limitation of a desktop end BIM design software modeling principle in a dam filling process. According to the method, left and right bank boundary line deviation phi of a dam filling bin dividing model based on a web end forms a closed body model and a three-dimensional terrain foundation model, and Boolean operation is performed on a dam shell model to obtain a left bank dam filling bin dividing precise model; the model is high in lightweight degree and small in occupied data space, and when a planning scheme needs to be adjusted, the model is more flexible and rapid; according to the method, the requirement for refined management and control of warehouse dividing mod