Method and device for dispatching gravel aggregate in tunnel construction

The invention relates to a method and device for dispatching gravel aggregate in tunnel construction. The method comprises the steps that a multi-target dispatching model is established; wherein the multi-objective scheduling model comprises an objective function and constraint conditions of the objective function, the objective function is a combined weighting function with the optimal comprehensive cost and the maximum hole slag utilization priority, and the constraint conditions comprise a concrete mix proportion, an optimal scheduling path, a non-zero one relation and a supply and demand relation; solving the multi-target scheduling model by using continuous linear programming and a generalized gradient descent method to obtain an optimal solution obtained by solving the multi-target scheduling model; wherein the optimal solution meets the requirement that the material transportation path is shortest; and based on the optimal solution, determining a scheduling strategy of the sandstone aggregate, thereby