Research on Scheduling of Underground Trackless Vehicle Based on Right-of-way Priority
It is an important means to improve production efficiency and ensure production safety to formulate an effective scheduling strategy of trackless transport vehicles in an underground mine.Aiming at the characteristics of the trackless trans-portation in underground mine,such as the complex road conditions and difficult vehicle avoidance,etc.,the influence of un-derground roadway structure on transportation capacity is analyzed.On the basis of acquiring real-time position and loading in-formation of underground vehicles,the right-of-way priority principle of underground trackless transport vehicle under different route structure is determined.For the goal of minimizing the total transport work and the vehicle waiting time,the objective op-timization model of underground trackless transport vehicle scheduling based on GA algorithm and logical relationship is con-structed.The actual running data of a underground trackless vehicle in a certain mine is used to solve the established objective optimization model,the results show that:① The established right-of-way priority principle can effectively reduce the probabili-ty of vehicles meeting in the non-wrong section and thus cause safety accidents,and improve the efficiency of vehicle operation;② Taking the actual operation data of the case mine as the basic parameters,GA algorithm is used to solve the objective func-tion established for calculating the total transport work,and the optimal path scheme with the minimum total transport work of 2 399.21 t·km was obtained when the total transport volume is of 4 730 t/d;③ On the basis of the minimum transport work per day,the vehicle waiting time of different scheduling schemes is solved via logical relations,and the specific transport route and running time of vehicles are obtained.this provides the best vehicle scheduling scheme for mine production scheduling,which is conducive to reducing transport costs and improving vehicle operating efficiency.
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