bottom belt

The vertical and parallel relations of the trench with drill drift are summarized by the bottom structure disposal design on inclined orebody footwall.

通过对倾斜矿体下盘底部结构的设计,总结了堑沟与凿岩巷道在垂直与平行位置关系,经比较和验算后合理设计底部结构,减少了开采损失贫化。

The effects of bottom structure of submerged nozzle on the flow field and temperature field of molten steel in the mold were analyzed and compared.

比较和分析了浸入式水口底部结构对结晶器内流场和温度场的影响,为优化浸入式水口结构参数提供参考。

The thinking of importing of large sized trackless self propelled equipments,the optimization of blast parameter and the improvement of bottom structure is put forward which give reference to the stoping of such kind orebody.

较详细阐述了目前国内缓倾斜中厚矿体的采矿方法和技术现状 ,从引进大型的无轨自行设备、优化爆破参数和改进底部结构等三个方面提出了一些具体思路 ,对于解决该类矿体开采所面临的问题具有较好的参考价