Prevention and handling of tunnel fall of ground and coal spontaneous ignition;
巷道冒顶煤炭自燃发火的预防和处理
The deformation mechanism of surrounding rock is analyzed by the energy principle,and the mechanical model of roadway roof coal is established.
根据砌体梁理论 ,老顶以给定变形方式作用于综放沿空巷道围岩 ,应用能量原理分析了巷道围岩的变形机理 ,建立了巷道顶煤的力学模型 ,运用变分法对老顶给定变形下顶煤的变形进行了初步求解 ,并对顶煤下沉量与支护阻力、煤体弹性模量、巷道宽度的关系进行了探讨。
Application study on the methane drainage frommined area by a top heading;
顶板巷道抽放采空区瓦斯的应用研究
To Open Up the Cave Tunnel Boring Cause of the Accident Analysis and Prevention and Control Measures
掘进巷道冒顶事故的原因及防治措施
Common Methods for the Treatment of Roof Collapse of Drift in Jinchuan Mining Area and Evaluation
金川矿区巷道冒顶处理的常用方法及评价
Comprehensive field investigation and control analysis on roof fall at heavy section drift of Yangchangwan Coal Mine
羊场湾煤矿大断面巷道冒顶现场综合调查与控制分析
Research on Comprehensive Control Technique for Heavy Roof Fall in Weak Mudstone Drift
松软泥岩巷道大冒顶综合治理技术的研究
Analysis of Roof Caving Instability Mechanism of Large-Section Roadway Under Complex Conditions
复杂条件下大断面巷道顶板冒落失稳分析
Application of High Water Content and Quick Setting Material to Ultra High Roof Failing Control of Mine Gateway
高水速凝材料在超高冒顶巷道治理中的应用
Due to the special geologic conditions of Jinchuan mining area, the phenomena of roof collapse in local drifts is quite common.
金川矿区由于其特殊的地质条件,巷道局部发生冒顶的现象较多。
EStrengthen the management of roadway roof to reduce the roof accident
加强巷道顶板管理 减少顶板事故发生
Discussin on Bolt and Cable Supporting Technique of the Comples Roof
复合顶板巷道锚杆锚索支护技术探讨
Practice of the Timbering of Composite Top - Tray Drift Anchored Cable Ret Cord
复合顶板沿空巷道锚梁网索支护实践
Study on Gateway Top Caving Technology for Steep-inclined Coal Seam
急倾斜煤层巷道放顶煤回采工艺研究
Reinforced Technology for High Roof Falling Area in Structure Broken Zone of Mining Gateway of Dongpang Mine
东庞矿水淹巷道构造破碎带高冒区加固技术
Research on repair technology for deep mine roadway with fault falling in Qishan Mine
旗山矿深部断层冒落巷道修复技术研究
The Practice of Comprehensive Prevention of Freely Burning Fire in the Higher Inbreak Areas of the Tunnel
巷道高冒区自燃火灾综合防治技术实践
"a roofed passageway or lane, especially one with shops on either side."
有屋顶的通道或小巷,尤指两边有商店时。
Study on the affection of roof crevice water to the stability of mining roadways supported by cable bolts
顶板裂隙水对锚索支护巷道稳定性的影响研究
Prediction of Outburst in Fully Mechanized Coal Face by the Method of Roof Dynamics in a Road way
用巷道顶板动态法预测综采面突出危险性
The Supporting Study of Soft-Rock Composite Roof of Stoping Tunnel in Saqu Coal Mine;
沙曲矿回采巷道软岩复合顶板支护研究