【摘要】 介绍了开滦集团唐山矿业公司历时7年半的地表减沉注浆综合技术,研究表明此技术对特厚煤层综放开采下沉有着比较显著的减沉效果,为实施综放开采防止地表破坏提供有效的治理方法。更多还原

【Abstract】 As a result of a seven-year-and-a-half study on the comprehensive grouting technology to reduce surface subsidence for Tangshan Mining Co,Kailuan Group,the technology proves to be of considerable help to reduce the surface subsidence caused by top coal caving longwall mining in extra-thick coal seams.This can be regarded as an effective solution to the protection of surface from damage from longwall mining underground.更多还原