葡萄牙Panasqueira钨矿地压活动分析与治理

Analysis and Control of Ground Pressure Activity in Panasqueira Wolfram Mine,Portugal

介绍了葡萄牙Panasque ira钨矿房柱法采场地压现状,分析了空场中顶板和矿柱冒落破坏的原因,提出该矿采取防范地压的措施:对面积较大的采场,可在采场中预留宽度为11 m的隔离矿柱,以阻隔已采完但未冒落的空场,并尽可能使隔离矿柱与大断层平行,同时采取人工强制放顶与减小爆破药量等辅助措施,从而降低大面积冒落的危害。

The current status of the ground pressure in the stops using room and pillar mining in Panasqueira Wolframe Mine, Portugal is presented. Based on the analysis of the causes for the failure of roofs and pillars in the excavated area, it is proposed that the measures for this mine can be： for larger stopes, 11 m wide barrier pillars should be preserved to protect the stope that is excavated but hasn＇t caved-in, which should be made as parallel as possible to the main fault. Meanwhile, some auxiliary measures should be taken to reduce the danger of large area cave-in.