煤矿开采
煤礦開採
매광개채
COAL MINING TECHNOLOGY
2014年
6期
47-49,73
,共4页
丁小敏%安建岗%武彦平%石蒙
丁小敏%安建崗%武彥平%石矇
정소민%안건강%무언평%석몽
能量校核%强矿压%不等长%强力锚索%设计应用
能量校覈%彊礦壓%不等長%彊力錨索%設計應用
능량교핵%강광압%불등장%강력묘색%설계응용
energy check%strong underground pressure%unequal length%strong anchored cable%design and application
强矿压显现情况下特厚大断面全煤巷道围岩离层和结构变形严重，普通低强度支护方式不能对巷道破坏进行有效控制。为提高支护效果，保持围岩的完整性与稳定性，采用基于能量校核的不等长完全强力锚索顶板支护系统进行支护。通过理论计算和现场实践表明，这种新型支护设计方法的支护承载力超过矿压显现的能量释放，长短结合的锚索支护显著提高了支护的可靠性和安全程度，降低巷道维修成本，应用效果显著。
彊礦壓顯現情況下特厚大斷麵全煤巷道圍巖離層和結構變形嚴重，普通低彊度支護方式不能對巷道破壞進行有效控製。為提高支護效果，保持圍巖的完整性與穩定性，採用基于能量校覈的不等長完全彊力錨索頂闆支護繫統進行支護。通過理論計算和現場實踐錶明，這種新型支護設計方法的支護承載力超過礦壓顯現的能量釋放，長短結閤的錨索支護顯著提高瞭支護的可靠性和安全程度，降低巷道維脩成本，應用效果顯著。
강광압현현정황하특후대단면전매항도위암리층화결구변형엄중，보통저강도지호방식불능대항도파배진행유효공제。위제고지호효과，보지위암적완정성여은정성，채용기우능량교핵적불등장완전강력묘색정판지호계통진행지호。통과이론계산화현장실천표명，저충신형지호설계방법적지호승재력초과광압현현적능량석방，장단결합적묘색지호현저제고료지호적가고성화안전정도，강저항도유수성본，응용효과현저。
Surrounding rock separation and supporting structure deformation was very serious in large-section coal roadway in extremely-thick coalseam under strong underground pressure, and common low-strength supporting manner could not control effectively roadway deformation. In order to improve supporting effect and keep surrounding rock integrity and stability, applying unequal-length strong an-chored cable to supporting roof based on energy check. Theoretical calculation and on-the-spot practice showed that supporting capacity of this system exceeded energy released from underground pressure behavior. Long-and-short anchored cable obviously improved sup-porting reliability and safety degree, and reduced roadway maintenance cost. Application effect was significant.
