陕西银矿采场顶板管理及支护参数的确定

陕西银矿为顶底板不稳固的倾斜中厚矿体，保持回采时间采场顶板的稳定性是该矿进行采矿方法试验成功的关键。试验的超前切顶爆力运矿分段采矿法，采用分段分条、缩小顶板暴露面积、超前切顶、锚杆支护、预留临时矿柱和分段连续矿柱，以及采后放顶处理空区的综合顶板管理方案。经现场试验证明是完全可行的，取得了满意的效果。

A ATUDY ON ROOF CONTROL AND SUPPORT PARAMETERN OF STOPE IN SHANXI SIL VER MINS

heerebodies are inclined and have a medium thkkness,witha unstable roofand floor in shanxi silver mine.The key to the successful experiment in mining method isto keep the stope roof stable during stoping. The tested mining method,i.e. sublevel stop-ing with advanced stope roof cut and explosive ore removing,is a compromise of stope roofcontrol in which sublevel and slice stoping, decrease in the exposed area of stope roof,ad-vanced stope roof cut,rock bolting,reservation of temporary pillars and successive sublevelpillars as well as forced roof caving in the mined-out area after stoping are considered.Theresults of field test have shown that this mining method is practical, with a satisfactoryeffectiveness.