煤
煤
매
COAL
2013年
10期
18-21
,共4页
煤巷%预应力%锚杆锚索组合支护
煤巷%預應力%錨桿錨索組閤支護
매항%예응력%묘간묘색조합지호
roadway%prestressed%bolt anchor combination support
以阜生煤业一采区运输下山为工程背景,采用FLAC3D模拟了巷道顶板在高预应力锚杆锚索组合支护作用下的应力场分布特征,研究得出预应力及其扩散是锚杆支护发挥主动锚固作用的关键性因素,锚杆与锚索组合支护能显著扩大有效压应力区范围,并在此基础上运用动态信息设计法设计出高预应力锚杆锚索组合支护参数应用于井下,支护效果理想。
以阜生煤業一採區運輸下山為工程揹景,採用FLAC3D模擬瞭巷道頂闆在高預應力錨桿錨索組閤支護作用下的應力場分佈特徵,研究得齣預應力及其擴散是錨桿支護髮揮主動錨固作用的關鍵性因素,錨桿與錨索組閤支護能顯著擴大有效壓應力區範圍,併在此基礎上運用動態信息設計法設計齣高預應力錨桿錨索組閤支護參數應用于井下,支護效果理想。
이부생매업일채구운수하산위공정배경,채용FLAC3D모의료항도정판재고예응력묘간묘색조합지호작용하적응력장분포특정,연구득출예응력급기확산시묘간지호발휘주동묘고작용적관건성인소,묘간여묘색조합지호능현저확대유효압응력구범위,병재차기출상운용동태신식설계법설계출고예응력묘간묘색조합지호삼수응용우정하,지호효과이상。
Fusheng coal in a mining area transportation down as engineering background ,using FLAC3D simulated roadway roof in the high prestressed anchor anchor combined support under the stress field distribution ,research results and their proliferation is prestressed anchor play a proactive role in supporting the key factors anchor ,anchor and anchor combined support can significantly expand the ef -fective compressive stress zone ,and on this basis ,the use of dynamic information design method to design high prestressed anchor an -chor combined support parameters used in the underground ,the supporting results are satisfactory .