The Optimization Research And Application Of Surface Mine Transition Alternative Mode Of Mining Area And Transportation Dumping Engineering Under Complicated Geological Conditions

In view of a serious of engineering issues caused by complex geological conditions such as reverse fault and anticline in China’s large open pit coal mine, this paper selected a modeling and simulation mining method suitable for complicated deposits of open coal mine. This paper summarizes the basic type of the ways by which the open pit mining change the direction under complex geological conditions, analyzes the characteristics of the ways and the influence factors of the way to choice, and set up the evaluation index system.The paper select the TOPSIS (Technique for order preference by similarity to ideal solution) to make a comprehensive evaluation, and put forward the corresponding implementation plan to the mining project;In allusion to the special geological conditions that nearly horizon seam divert to inclined seam, the paper put forward a new conception for transportation system--"delay down type", and presents its formula for distance, dynamic evolution process, layout form and application effects;Study the change rule of overburden amount and the interspace for inner-dumping under the special geological conditions that nearly horizon seam divert to inclined seam,put forward a long stage of the optimization by using the dynamic programming for inside and outside row flow of dumping under complex geological conditions of open-pit mines, also research and vivificate the theory and method with engineering project,and provide effective decision-making basis for the engineering design and production management.