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光面爆破在井巷施工中的推广应用,显示了优越的技术经济效果。为了大幅度提高井巷掘进速度,在中深孔光面爆破进行推广的基础上进行了深孔光面爆破的工艺试验。 总结平巷3-4米深孔光爆的试验结果,可以认为:合理确定掏槽参数、周边眼装药结构、起爆时差和保证钻眼的准确性是实现深孔光爆的主要技术环节,这些都影响着深孔光爆的质量和效果。现就上述问题结合试验情况和数据,做简要的总结分析。
Smooth blasting in the construction of the popularization and application of the road, showing the superior technical and economic results. In order to greatly improve the tunneling speed, deep hole smooth blasting process test was carried out on the basis of popularizing medium-deep hole smooth blasting. Summarize the test results of 3-4 meters deep borehole light blasting, it can be concluded that the reasonable technical parameters of undercutting, the charge structure of peripheral eyes, the time difference of initiation and the accuracy of drilling are the main technical links to realize deep hole light explosion, These affect the quality and effect of deep hole light burst. The above questions are combined with the experimental conditions and data, do a brief summary analysis.