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1 建筑物下采煤概况波兰是世界主要产煤国之一,产煤地主要集中在上西里西亚矿区,有6个煤炭生产联合体,66个生产矿,下西里西亚矿区,仅有1个生产联合体,4个生产矿。1988年全国煤炭产量为2.66亿t,其中:硬煤1.93亿t,褐煤0.73亿t,上西里西亚矿区年总产煤量达1.87亿t,占全国硬煤产量的97％,该矿区每年从城镇建筑物下采出煤炭约8000万t,建下采煤量占矿区总产煤量的42％。波兰建筑物下采煤起自50年代初,40余年来积
1 Mining Under Construction Overview Poland is one of the major coal-producing countries in the world. Coal-producing areas are mainly concentrated in the Upper Silesian mining area. There are 6 coal production complexes, 66 production mines and the Lower Silesian mining area with only 1 production Commonwealth, four production mines. In 1988, the national coal production was 266 million tons, of which: 193 million tons of hard coal and 173 million tons of brown coal. The total annual coal production in Upper Silesia Mining Area reached 187 million tons, accounting for 97% of the national output of hard coal. Under the urban buildings, about 80 million tons of coal are taken out and 42% of the total coal production in the mining area is built and built. Coal mining in Poland since the early 50’s, more than 40 years