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目前,西安煤矿正规回采的采区,顶板管理多数是金属网假顶,单体液压支柱与铰接顶梁(或∏型钢梁)配套支护。由此可见防火工作在金属网下分层回采中,是一项重要工作。
At present, the mining area and roof management in the normal coal mining of Xi’an Coal Mine are mostly metal mesh roofs, single hydraulic props and hinged roof beams (or Π steel beams) supporting support. This shows that fire protection work in stratified mining under the metal mesh is an important task.