Puts forward the corresponding measures to achieve operation optimization for chillers, including properly increasing outlet temperature of chilled water and/or lo wering outlet temperature of cooling water, rationally regulating start-up sequence of chillers and water pumps with intelligent control strategies, and predicting minimum preheating/precooling period a.

According to the reasonable seam mining order and mine production scale,arranging the normal face replacement and corresponding driving engineering,the reasonable relation between mining and driving can be kept.

This paper analyses the failure process of the slope under different underground mining sequence from the angle of analysis of the slope failure feature due to combining mining,and the mining order is optimized,.

The industrial indexes of the deposit, mining sequence and the gro- uping emptied stopes are analyed and discussed, and the reasonable and viable schemes are brought up, whichguarantees the rationality and the feasibility of mining in Changba-Lijiagou lead-zinc mining area.

This paper anylises the cause of the inefficient ore production in Gaoshan Ming Area of these years, points out the exsiting problom,and based on analysing, calculating, remaking mine progress plan,puts forth rational mining sequence about this deposit and adoptable productiveness of Gaoshan Mining Area.