CAJ | 학술논문

针对深部高应力巷道大变形问题，结合具体矿山（曲江煤矿），进行了变形与破坏特征的现场调查和支护对策与关键技术等分析．调查发现，深部巷道的变形与破坏的主要表现形式为顶板下沉量大、侧帮内挤、锚网支护失效严重、底鼓破坏严重等．对于深部变形严重巷道的返修必须采取强化支护形式，提出尽早形成厚层高强承载壳、主动防止底鼓和主被动联合支护的关键技术；而对于新掘进巷道支护，要遵循强化一次支护、增大预应力、提高支护刚度、保证支护材料的高强度等原则．最后，给出了曲江煤矿西大巷东段支护方案与参数，结果表明该方案能有效地抑制围岩大变形．
침대심부고응력항도대변형문제，결합구체광산（곡강매광），진행료변형여파배특정적현장조사화지호대책여관건기술등분석．조사발현，심부항도적변형여파배적주요표현형식위정판하침량대、측방내제、묘망지호실효엄중、저고파배엄중등．대우심부변형엄중항도적반수필수채취강화지호형식，제출진조형성후층고강승재각、주동방지저고화주피동연합지호적관건기술；이대우신굴진항도지호，요준순강화일차지호、증대예응력、제고지호강도、보증지호재료적고강도등원칙．최후，급출료곡강매광서대항동단지호방안여삼수，결과표명해방안능유효지억제위암대변형．
Abstraet: According to the large deformation problem of high - stress deep roadway, this paper makes a field investigation on deformation and failure characteristics. Analysis on supporting measures and key technology, etc are done based on specific mine. Results show that main forms of deformation and failure in deep roadway are that roof subsidence is great, side shows extrusion, anchor net support failure is serious, and the floor heave destruction is serious, etc. For severely deformed deep rework roadway, strengthening support form must be taken, the technology of forming a thick high - strength bearing shell as soon as possible and preventing floor heave actively and combining with initiative and passive support are put forward. However, for the supporting of new roadway, it pus forward some principles, such as strengthening primary support, increasing priestess, improving stiffness of support; it also should ensure their high strength of support, and so on. Finally, the supporting scheme and parameters on eastern section of west main roadway are provided, showing that the scheme can inhibit surrounding rock large deformation efficiently. Key words: deep roadway; deformation and failure; surrounding rock control; supporting measures