According to the "Big Time Delay" and the "Big Over Hanging Beam" principle, the building was successfully demolished through directional blasting.
通过采用“大时差”和“大悬臂梁”原理，对该大楼成功地实施了定向爆破拆除。
The design blasting parameters, blasting net, delay time, defending measure selection and gap length determination in complicated environment are discussed.
探讨在复杂环境条件下爆破参数、爆破网路、延时时间、安全防护措施的选择和爆破切口范围的确定。
According to the time to form the blasting free face and the time for the broken rock flying, the paper discussed the rational delay time of each functional borehole in deep borehole blasting.
根据爆破自由面形成的时间和破碎岩石飞行的时间，探讨了深孔爆破各作用炮眼的合理延期时间；
The influence of delay intervals on blasting effects was analyzed, the optimum blasting effects ware reached through optimizing the delay time.
分析了延期间隔对爆破效果的影响，介绍了不同延期间隔阶段的岩体爆破过程，通过综合优化爆破时间，达到最佳爆破效果。
To determine rational microsecond delay time is both the requirement of ensuring blasting quality and the key to achieve blasting vibration reduction.
确定合理的微差间隔时间，既是保证爆破质量的需要，又是达到爆破降震的关键。
The practice has shown that the initiation delay time is an important factor affecting cut blasting effect.
工程实践表明，微差起爆时间是影响掏槽效果的一个重要因素。
Current situation of study and application of hole-by-hole blasting on mechanism, delay time and effect is analyzed; developing further problems to be solved are given in this paper.
主要从逐孔爆破技术机理、微差时间和爆破效果等方面分析了该技术的研究和应用现状，同时分析了该技术需要进一步解决的问题。
Current situation of study and application of hole-by-hole blasting on mechanism, delay time and effect is analyzed; developing further problems to be solved are given in this paper.
主要从逐孔爆破技术机理、微差时间和爆破效果等方面分析了该技术的研究和应用现状，同时分析了该技术需要进一步解决的问题。
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