建井技术
建井技術
건정기술
Mine Construction Technology
2015年
4期
46-50,55
,共6页
软煤岩巷道%锚杆支护%固压作用%长期强度
軟煤巖巷道%錨桿支護%固壓作用%長期彊度
연매암항도%묘간지호%고압작용%장기강도
soft coal and and rock roadways%bolt support%fix-pressure mechanism%long-term strength
为解决松藻矿区M8煤层软煤岩巷道支护问题，首先探讨了锚杆在围岩中的锚固机理，认为径向锚固力来源于锚固段与孔壁的紧配合摩擦力，并给出了计算紧配合摩擦力公式。其次探讨了锚杆支护固压作用机理，认为锚杆之所以能够支护巷道，是锚杆固压作用的结果；并提出了锚杆固压作用机理下的基本观点。最后提出了锚杆支护的12字原则：固得牢，压得住，控得早，协调变。该支护理论有效地解决了松藻矿区软煤岩巷道支护难题。
為解決鬆藻礦區M8煤層軟煤巖巷道支護問題，首先探討瞭錨桿在圍巖中的錨固機理，認為徑嚮錨固力來源于錨固段與孔壁的緊配閤摩抆力，併給齣瞭計算緊配閤摩抆力公式。其次探討瞭錨桿支護固壓作用機理，認為錨桿之所以能夠支護巷道，是錨桿固壓作用的結果；併提齣瞭錨桿固壓作用機理下的基本觀點。最後提齣瞭錨桿支護的12字原則：固得牢，壓得住，控得早，協調變。該支護理論有效地解決瞭鬆藻礦區軟煤巖巷道支護難題。
위해결송조광구M8매층연매암항도지호문제，수선탐토료묘간재위암중적묘고궤리，인위경향묘고력래원우묘고단여공벽적긴배합마찰력，병급출료계산긴배합마찰력공식。기차탐토료묘간지호고압작용궤리，인위묘간지소이능구지호항도，시묘간고압작용적결과；병제출료묘간고압작용궤리하적기본관점。최후제출료묘간지호적12자원칙：고득뢰，압득주，공득조，협조변。해지호이론유효지해결료송조광구연매암항도지호난제。
In order to solve the supporting problem of soft coal and rock roadways in Songzao Coal Min‐ing Area ,firstly ,anchorage mechanism of anchored bar in surrounding rock is discussed ,it is thought that radial anchorage force comes from a tight fit friction between the anchorage section and the bore‐hole wall ,and the calculation formula of tight fit friction is given.Secondly ,bolt supporting and fix-pressure mechanism is discussed ,it is thought that the reason of bolt supporting the roadways is the result of bolt fix-pressure action ,and some basic view points under bolt fix-pressure mechanism are brought forward. Finally ,bolt supporting principles are put forward ,i .e.“fixed firmly ,compressed firmly ,control early and coordinate deformation”. The new supporting theory has effectively solved the supporting problem of soft coal and rock roadways in Songzao Coal Mining Area .
