发明名称 METHOD OF CLOSING ABANDONED WORKINGS, POSTEXPLOITATION VOIDS AND MINE HEADINGS FILLED WITH FINE-CRUSHED MATERIAL
摘要 1. A method of blocking cavings, post-mining caverns and mining excavations filled with water filling mixture containing fine-fraction materials characterized in that filled cavings, excavations or post-mining caverns are isolated with the use of stoppings made of materials insoluble in water, which stop fine-grained fractions of introduced filling, preferably porous fractions such as fine-grained furnace slag, fine-grained metallurgical discards, clean sand, finely crushed rocks with the thickness of stopping layer of at least 0.2 m, and the speed of medium flow through the stopping, depending on used material, should not exceed 2 cm/sec.
申请公布号 PL158411(B1) 申请公布日期 1992.08.31
申请号 PL19880274456 申请日期 1988.08.29
申请人 发明人
分类号 E21F;E21F15/00;(IPC1-7):E21F15/00 主分类号 E21F
代理机构 代理人
主权项
地址