Feasibility of open-pit mining on shallow coal pillars of mine

Research on the safety and stability of slope in open-pit mining is very significant to safety production of open mines.

Accor ding to the depth increasing of open-pit, the ore source of open-pit mining is decreasing day by day, at the same time, the condition of open-pit mining turns into very hard, so some open-pit mines start to transfer into the underground mining.

Building of analog virtual laboratory for open mining;

Preliminary exploration of the cause of land slip and its prevention and control in the open mining of metal mines;

Open mining aims at Sedimentary and Accumulative bauxite,underground mining is for Permian bauxite,Middle-upper carboniferous bauxite and mid-Carboniferous bauxite.

Control of blasting cost during opencast mining;

Using"the optimizing software package of the opencast mining design"optimizes the opencast boundary of the second deposit of the Huogeg Iron Ore in Wulate Rear-banner of Inner Mongolia.

On the basis of the exploitation actuality of a large-scale gold-copper deposit, the technical measures are suggested such as utilizing the potential reserves, conducting the technological transformations and increasing productivity to realize full opencast mining, and achieve a mining scale with gold of 16 t/a, copper ore of 20 000 t/d, total mining and overburden amount of 85 Mt/a.