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1)  parallel cut
直眼掏槽
1.
The mechanic model of empty space's formation was established based on the typical bore distribution in parallel cut blasting with cavity.
建立了典型空孔直眼掏槽的力学模型,从理论上得出了影响空孔直眼掏槽效率的影响因子为岩石的抗拉强度、抗压强度、岩石初始密度、岩石中纵波的传播速度、炸药的性质、空孔半径、空孔到掏槽孔的距离、崩落孔与掏槽孔的起爆时差;选择了其中对工程有实际意义的4个参数进行27次正交试验。
2.
The physical behavior of cut holes in the course of forming empty space was analyzed; and the mechanic model of empty space’s formation was established based on the typical borehole distribution in parallel cut blasting with cavity.
空孔直眼掏槽是隧道或井巷掘进的主要方法之一。
2)  burn cut
直眼掏槽
1.
Application of burn cut to tunnel soft rock construction and blasting parameters optimization;
直眼掏槽在隧洞软岩施工中的应用及爆破参数优化
2.
Through research on tunnel-based triangle burn cut by in-situ test,it is assumed in this paper that the process o f cavity formation by explosive contains two successive stages,rock being broken and being thrown out.
通过对三角柱直眼掏槽爆破进行试验研究 ,认为爆破槽腔的形成过程可分成两个阶段 ,即岩石破坏阶段和破碎岩石抛出阶段 ;进而 ,依照岩石压缩破坏与剪切破坏的力学准则 ,导出三角柱直眼掏槽炮眼间距与装药系数的计算式 ;根据计算结果 ,在井下巷道工程实际应用中进行对比 ,证实了它的可靠性。
3)  Parallelled burn cut way
准直眼掏槽
4)  rhomdus cut
直眼菱形掏槽
5)  stage parallelhole cut
分段直眼掏槽
1.
The effects of theoretical analysis and model experiment shows that stage parallelhole cut may increase cut blasting volume and depth and improve fragmentsize.
理论分析和模型试验表明,孔内分段直眼掏槽可提高掏槽爆破效率,改善岩石破碎效果。
6)  burn sublevel cut
直眼分段掏槽
1.
In this paper,the methods of calculating vertical shaft burn sublevel cutting blasting parameters are given up according to the analysis of its blasting mechanism ,which is proved effective in practic
对立井深孔直眼分段掏槽糕爆破机理进行了分析探讨,并建立了其爆破参数的计算方法,经实践证明效果良好。
补充资料:直眉睖眼
1.见"直眉楞眼"。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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