首页> 中文期刊> 《山西焦煤科技》 >无煤柱回采三种留巷方式探讨

无煤柱回采三种留巷方式探讨

         

摘要

为了提高煤炭资源回收率,最大限度地减少煤柱损失,尽可能采用无煤柱开采技术进行生产。基于以上目的,对在地下煤矿开采中,壁式条带布置工作面方式、工作面间煤柱的去留进行了论述,介绍了三种不同沿空留巷(掘巷)方式的具体做法,即筑墙强支留巷法、恒阻大变形预应力锚索留巷法、预留沿空掘巷法。并对三种不同沿空留巷(掘巷)方式的特点进行了对比分析,从而为各类煤矿因地制宜选用不同方式提供了借鉴。%In order to improve the recovery rate of coal resources,minimize the loss of coal pillar,as far as pos-sibly use no pillar mining technology for production.Based on the above purpose,in the exploitation of underground coal mine,wall strip layout working face way,removing or retaining of coal pillar between working face were dis-cussed.Introduces the specific practices of three kinds of goaf side entry retaining(roadway driving)way,that is building walls to support retaining roadway method,constant resistance large deformation prestressed anchor cable en-try retaining method and reserve goaf side entry driving method.And the characteristics of three kinds of different goaf side entry retaining (roadway driving)mode were contrasted and analyzed,so as to provide a reference for the various types of coal mine choosing different ways of adjusting measures to local conditions.

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