矿山生产实习(国外英文资料).docVIP

矿山生产实习(国外英文资料) Guide book of experiment on mining of ore deposits School of civil and environmental engineering, University of Science and Technology Beijing September 2005 One of the experimental items: mining method, plot experiment The mining method of mining engineering are mainly divided into three categories of mining methods, in order to have a good understanding of the mining method, it is necessary for students, open stoping and filling caving mining method mining section field structure has a profound understanding, so as to grasp the essence of mining method. A three figure as openstope method. In the process of mining stope mining method, the ore block is divided into rooms and pillars, the first mining house, after mining pillar. Openstope method including three view room and pillar mining method, stoping and stagestop method. 1. pillar mining method Room and pillar mining method for mining horizontal and inclined orebody, ore body and surrounding rock solid, in the mine or mine area in the room and pillar arranged alternately, rules of mineral pillar continuous or interrupted rooming, in order to maintain the roof rock. The mined ore bodies are from 2~3 meters to 30~40 meters in thickness. (1) the structure and parameters of the stope: the long axis is along the direction of ore body, along the inclined or oblique angle handling equipment and layout, the ore body mainly with the decision. The design of the stope length 40~60m, width 8~20m, pillar diameter 3~7m, pillar spacing is 5~8m. (2) mining and cutting work: phase transportation roadway can be arranged in the vein or in the bottom rock. Storage of ore in a ore chute. (3) mining work: when the ore body is 2~3m, the whole thickness is taken once; the thickness of the ore body is large and the stoping is carried out at 3m. (4) evaluation: room pillar method is the most effective mining method for mining horizontal and gentle inclined orebody. The mining cutting workloads, work organization is simple,