关键词: 特厚煤层 小煤柱 沿空掘巷 安全保障体系

Abstract: Small coal pillar gobside entry driving is of great significance for roadway mine pressure management and safe and efficient mining of working face.Taking the small coal pillar roadway of 5305 tongxin mine as the engineering background,in order to ensure the smooth driving of the roadway,the safety risk sources during roadway driving were identified,,and the corresponding requirements were put forward from the aspects of monitoring mine pressure,the filling of the remaining chamber,water,fire and gas prevention,etc.,and safety guarantee system of small coal pillar gobside entry driving of fully mechanized caving mining in specially thick coal seam working face was established.Field practice shows that under the protection of the system,5305 small pillar roadway has realized safe and efficient driving,no safety concerns were found.

Key words: Specially thick coal seam,Small coal pillar,Gobside entry driving,Safety guarantee system