山西焦煤科技
山西焦煤科技
산서초매과기
SHANXI COKING COAL SCIENCE & TECHNOLOGY
2013年
7期
54-56
,共3页
回收率%无煤柱%沿空留巷(掘巷)%对比%分析%借鉴
迴收率%無煤柱%沿空留巷(掘巷)%對比%分析%藉鑒
회수솔%무매주%연공류항(굴항)%대비%분석%차감
Recovery rates%No coal pillar%Goaf side entry retaining(roadway driving)%Comparison%Analy-sis%Use for reference
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。
為瞭提高煤炭資源迴收率,最大限度地減少煤柱損失,儘可能採用無煤柱開採技術進行生產。基于以上目的,對在地下煤礦開採中,壁式條帶佈置工作麵方式、工作麵間煤柱的去留進行瞭論述,介紹瞭三種不同沿空留巷(掘巷)方式的具體做法,即築牆彊支留巷法、恆阻大變形預應力錨索留巷法、預留沿空掘巷法。併對三種不同沿空留巷(掘巷)方式的特點進行瞭對比分析,從而為各類煤礦因地製宜選用不同方式提供瞭藉鑒。
위료제고매탄자원회수솔,최대한도지감소매주손실,진가능채용무매주개채기술진행생산。기우이상목적,대재지하매광개채중,벽식조대포치공작면방식、공작면간매주적거류진행료논술,개소료삼충불동연공류항(굴항)방식적구체주법,즉축장강지류항법、항조대변형예응력묘색류항법、예류연공굴항법。병대삼충불동연공류항(굴항)방식적특점진행료대비분석,종이위각류매광인지제의선용불동방식제공료차감。
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.