1967年以来,太平洋煤矿在开采煤厚1.5～3.0m的煤层,采用滚筒式联合采煤机,工作面使用掩护支架.而煤厚在0.80～1.5m的薄煤层,以前回采工作面采用刨煤机,1984年1月在南益浦区布置了开采簿煤层的试验工作面,经五个月的回采达到了预期的目的.南益浦区上层煤为薄煤层,煤质较好,地质条件也较优越.采用采区上山长壁后退式开采,其试验 Since 1967, Pacific coal mines have adopted coal drums with a coal drum thickness of 1.5-3.0 m and protective shields on the working face, while in the thin seam of coal thickness of 0.80-1.5 m, the former coal mining face used planing Coal machine, the experimental face of exploratory book coal seam was arranged in Nanyipu district in January 1984. After five months of mining, the expected purpose was achieved. The upper coal in Nanyipu district is thin coal seam with good coal quality and geological The conditions are superior.Using the mining area longwall back mining, the test