Due to the initial design shortcomings and the serious material deteriorations, the open-air-span strcture of the 1st workshop of Harbin Turbine Works is reinforce.

Road dust formation and suppression in an open pit;

Safety management jobs of refuse dump in open pit mine at Jianshui Manganese Mine are introduced from the aspects of mine mining, mine situation, choice place of refuse dump, expecting social and economic benefits etc.

Analysis of factors influencing open-pit mine productivity;

Application of millisecond blasting technology in Lanping open-pit mine;

Methods of object-oriented and center structure of truck optimized dispatch in open-pit mine;

Overview of road dust suppressants in open pits;

Based on the analysis of causes on which the blasting boulder occurs in borehole blasting of the limestone open pit,the paper determined some measures of lowering boulder yield of borehole blasting operation in the limestone mining open pits by borehole parameters,taking explosive specific charge,charge structure,millisecond interval and detonating into design of blasting program.

This paper addresses the methodology of introducing risk into the development of mine plans for open pit mines.