Based on the analysis of the current rod breakers of down hole drill, the structural program and hydraulic system of the fully hydraulic rod breaker are proposed.
通过综合分析潜孔钻机接卸钻杆装置 ,提出了全液压接卸钻杆装置的结构方案及液压控制系统 ,研究了夹杆缸的结构及夹杆爪与夹杆缸的联接方式 ,研制了夹杆缸双行程及夹杆缸活套联接结构的夹杆器 ,分析了夹杆缸结构参数与工作参数的相互关系 。
Discussion on application of borehole pressure reliefcontrol rockburst hazard
应用卸压钻孔防治冲击地压灾害的探讨
Numeric simulation of borehole pressure relief preventing roadway rockburst of a mine
钻孔卸压防治巷道冲击地压的数值模拟
Pressure releasing and gas drainage with long bore hole in roof overburden of fully mechanized caving face
综放面顶板覆岩走向长钻孔卸压抽放瓦斯研究
The borehole must be drilled at correct place，and the gas pressure will be relieved.
没有卸不了压的瓦斯，只有打不到位的钻孔。
Study on Technology of Surface Drillings Draining Pressure Relief Gas of Coal Seam by Protected;
地面钻孔抽采被保护层卸压瓦斯技术研究
Numerical Simulation Optimization for Release Pressure Bore Hole of Roadway Floor in Three Soft Coal Seam
三软煤层巷道底板钻孔卸压的数值模拟优化
Practice on Relieving Shot Controlled by Borehole and Increasing Air Permeability Coefficient of Seam
钻孔控制卸压爆破增加煤层透气性系数的实践
Numerical simulation of small pillar stress concentration areas borehole pressure relief effect
小煤柱应力集中区钻孔卸压效果的数值模拟
Study on Technology of Bores Through Coal and Rock Seams Draining Long Distance Pressure Relief Gas in Bed Plate Tunnel;
底抽巷上向穿层钻孔抽放远程卸压瓦斯技术研究
Testing Research of Laneway Wall Rock Stress Released by Advanced Bore Decompression Explosion Technique
超前钻孔卸压爆破技术释放巷道围岩应力试验研究
Change Rule of Initial Speed of Gas Emission From Borehole in Outburst Coal Seam Before and After Pressure Relief
突出煤层卸压前后钻孔瓦斯涌出初速度的变化规律
Numerical Simulation Research of Pressure Relief Mechanism of Borehole of Small Pillar Stress Concentrated Areas
小煤柱应力集中区钻孔卸压机理的数值模拟研究
THE RESEARCH ABOUT MECHANISM ON UNLOADING TIME EFFECT CAST-IN-PLACE BORED PILES
钻孔灌注桩成孔卸荷时效性理论研究
hydraulic gait-model all-auger drilling machine
液压步履式螺旋钻孔机
horizontal borehole pressure recorder
水平钻孔压力记录器
Analysis on Mining Released Gas Sources for Surface Borehole Drilling and Gas Drainage
地面钻井抽采采动卸压瓦斯来源分析
Manufacture and Application of Two Disassembly Bars for Bored Grouting Pile
两种钻孔灌注桩可拆卸吊筋的制作与使用
Research and Application of Hydraulic Flushing Improving Permeability and Relieving Pressure Technology
水力冲孔卸压增透技术的研究与应用