1、翻译部分英文原文Optimization model of Coal Mine roadway layout system Based on Evidence Theory and Its ApplicationJinfeng Wang1, Mingzhong Zhao 1, Lijie Feng1,2, Xia Chen11 Institute of Management Engineering, Zhengzhou University, Zhengzhou, 4500012 Henan Rescuing Center for Mineral Disaster, Henan Zhengzh
2、ou, P.R.China, 450014(E-mail: jinfengwang)Abstract - Chinas coal mine roadway layout systems are complicated, multi-production and poor matching. And thus affect the overall effectiveness of the coal production logistics system. Although the research content on coal mine logistics system at home and
3、 abroad are many, however, research on the optimization method of coal mine roadway layout system are very few. In this paper, we did an in-depth analysis on coal mine roadway layout system, established an optimization factors system of coal mine roadway layout system, and determined the relative we
4、ight of the influencing factors at each levels using analytic hierarchy process to according to experts advices. At the same time, by introducing D-S evidence theory in this article, we established optimization model of coal mine roadway layout system and described its application process through em
5、pirical analysis. Finally, the results of the discussion can provide the optimization and transform of coal mine roadway layout systems in practice with a theoretical basis. Key words - Coal mine roadway layout system, influencing factors Evidence theory, Optimization modelI INTRODUCTIONCoal mine ro
6、adway not only can transport, ventilation, drainage, access to walk for both people and equipment, but also provide a space for all kinds of activities of underground. It not only contains the roadway subsystem, also includes associated coal mine production systems and equipment systems. Therefore,
7、to study the coal mine roadway layout systems engineering, we must focus on analysis of the overall coal mine and its associated state and process, so as to enable the roadway system coordinate the various components of each other, and thus to reach the aim that technically advanced, reliable operat
8、ion, economic on cost-effective, and ultimately get the best cost-effectiveness of integrated1,2.In this paper, on the basis of giving full consideration to the economy, efficiency, safety three factors, we did an in-depth analysis on coal mine roadway layout system, established a optimization facto
9、rs system of coal mine roadway layout system, and determined the relative weight of the influencing factors at each levels using analytic hierarchy process3,4 (AHP) according to experts advices. And then, by introducing D-S evidence theory 5,6 in this article, we established optimization model of co
10、al mine roadway layout system. Through empirical analysis explained its process and application. The results show that the optimization model is reasonable and feasible. THE ESTABLISHMENT OF INFLUENCING FACTORS OF OPTIMIZATION OF COAL MINE ROADWAY LAYOUT SYSTEMCoal mine roadway is not only can trans
11、port, ventilation, drainage, access to walk for both people and equipment, but also provide a space for all kinds of activities of underground. It is a large and complex system which consisting by multi-level sub-system. And it will result in the entire coal production logistics system inefficient w
12、hile the resources will be serious waste if one sub-system have problem 1,2. For such a complex system, how to choose a reasonable optimization program and parameters of the mine roadway layout system, so that roadway layout systems get optimized and transformed, has been the research focus of many
13、scholars. For optimizing and transforming the coal mine roadway layout systems, it involves the analysis of a large number of qualitative indicators. If the optimization is still mainly qualitative optimization, it is easy to lack uniform quantify standards and selection procedures. By introducing e
14、vidence theory, it can make up for its lack to some extent, and eliminate uncertainties existence in the systems.Through referring to coal mine roadway layout system literature 1,2, combining with systems engineering7, and considering the economy, efficiency, safety factors, we established four seco
15、ndary factors as following: economy of engineering equipment, production efficiency, and the use of space and equipment efficiency, safety and reliability. And 12 three-tier influencing factors as following: the reasonableness of roadway project costs, costs of construction equipment maintenance, en
16、ergy consumption of production and auxiliary equipment, depreciation rate of production and maintenance equipment, convenience of production and construction equipment, and the reasonableness of transport and enhance routes, the efficiency of auxiliary systems, and production efficiency of unit personnel and equipment, the ratio of shared roadway space, efficiency of the use of production and maintenance equipment, improvement of
