关键词: “三下”采煤, 长壁式采煤法, 旺格维利采煤法, 条带采煤法

Abstract: A new quick coal mining technology about strip mining based on long-wall and short-wall mining is proposed. The new mining technology integrates the advantages of long-wall mining, strip mining and wongavilli mining methods in one. The new mining technology length of working face,remaining strip width and mining strip width are calculated. Remaining strip coal pillar stability is checked with three methods. The layout of the roadway, major workface equipment and production process are briefly introduced. The paper also calculates various movement deformation value of surface ground after the coal mining completed and analyzes influences to the surface buildings. Study results show that remaining strip coal pillar is stability, surface deformation is controllable. The new mining technology is technical feasibility and economic rationality and adaptable extensivity.