小官庄铁矿采场地压控制方法的研究

Investigation on Stope Ground Pressure Control Method for Xiaoguanzhuang Iron Mine

针对小官庄铁矿软破矿岩性质,在总结原有控压方法的基础上,提出了高应力采场应全面实施卸压开采的设想,并对卸压开采的必要性及可行性进行了论证。介绍了卸压方法的选择及卸压工程的具体实施,实现了小官庄铁矿高应力难采矿块的顺利回采。

In view of the properties of weak fractured ore rock of Xiaoguanzhuang Iron Mine and based on the summary of the originally used pressure control method, it is suggested that high stress stope should be extracted by whole depressurization mining. The necessity and feasibility of depressurized mining are proven. The selection of depressurization method, practical implementation of depressurization engineering and the realization of smooth extraction of high stress difficult-to-mine block are described for Xiaoguanzhuang Iron Mine.