诺里尔斯克矿冶公司“十月”矿采用垂直分条下向和双向分层全面法回采矿石。所用的回采工艺的特点是:沿矿体顶板超前切割并且使用胶结充填料充填切割巷道(见图)。沿矿体顶板超前切割是减轻下部矿体边界部分的载荷,防止地压显现的一种手段。切割巷道由充填体的下部分层用作开采下部矿石时回采巷道的人工顶板。在人工顶板下面回采矿石时,复杂的技术问题之一是要保证充填体暴露面的稳定性。在大规模生产的条件下,保证充填体暴 The Norilsk Mining and Metallurgical Company’s “October” mine uses vertical striping and bidirectional stratification to recover the ore. The recovery process used is characterized by advanced cutting along the roof of the ore body and filling of the cut roadway with cemented fillings (see figure). Cutting along the top of the ore body is to reduce the load of the lower part of the ore body to prevent the emergence of ground pressure as a means. Cutting roadway from the lower part of the filling body is used as the artificial roof of the roadway when mining the lower ore. One of the more complex technical problems in recovering ore below artificial roofs is to ensure the stability of the exposed face of the filling body. In mass production conditions, to ensure that the body filled with violence