Rational design of bottom blocks for development of ore deposits systems with caving of ore and enclosing rocks

Innovations and Prospects of Development of Mining Machinery and Electrical Engineering

矿业工程;电工学

Versilov, S.O.^1 ; Posylniy, Yu V.^1 ; Shurygin, D.N.^1 ; Tretyak, A. Ya^1

Platov South Russia State Polytechnic University (NPI), 132, Prosveshchenia St., Novocherkassk, Rostov Region

346428, Russia^1

关键词: Bottom blocks;    Choice of parameters;    Enclosing rocks;    Geological conditions;    Loadbearing structure;    Production wells;    Rational design;    Technical solutions;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/87/5/052033/pdf
DOI  :  10.1088/1755-1315/87/5/052033

来源: IOP

【 摘 要 】

The assessment of the geological conditions of development of existing ore deposits was made. For testing ore deposits in difficult mining and geological conditions, the authors proposed the system of development, accompanied by collapse of the mechanical ore with the use of feeders of active action that could be manufactured directly in the mine in accordance with the specific conditions of occurrence of minerals. The paper demonstrates the technology of manufacture of load-bearing structures of the feeder directly in the mine at the scene of the breaking of the first layer of ore, as well as the dynamics of the ore and the choice of parameters of concrete feeders. A new design of the bottom block was proposed, the idea of technical solution of which consists in the fact that it is offered to undergo the production of the smallest possible cross section, which is determined only by the dimensions of the conveyors to deliver ore. And before the explosion of fans of production wells, it is necessary to produce local collapse of the roof production to increase its height at the place of production of ore by blasting wellheads in two or three rows.