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首页> 外文期刊>Tunnelling and underground space technology >The Problem Of Human Response To Blast Induced Vibrations in Tunnel Construction And Mitigation Of Vibration Effects using Cautious Blasting In Half-face Blasting Rounds
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The Problem Of Human Response To Blast Induced Vibrations in Tunnel Construction And Mitigation Of Vibration Effects using Cautious Blasting In Half-face Blasting Rounds

机译：隧道施工中人为应对爆破振动的问题和谨慎爆破减轻爆破振动效应的问题

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Blast induced ground vibrations generated by explosives in tunnel construction may cause structural damages in or close to urban areas. Therefore, the aim in blasting must be to suppress the vibration effects and mitigate the possible hazard on structures. But the psychological character of human response to vibrations involves highly subjective attitudes about what kind of environment is "acceptable" even if no structural damage is occurred. Therefore, we utilize the method of cautious blasting for half-faces that is environmentally friendly, and easy to utilize for tunnel construction. Small charges in this method are detonated sequentially to produce minimum side effects. This method is tested in a tunnel construction in Istanbul with numerous experimental shots. In these experiments, the duration and also quantity of explosives are carefully controlled. Regarding human response, better results are obtained with short durations (about 300 ms) compared to long durations (9000 or 480 ms). The quantity of maximum co-operating explosive charge decreases from 3.088 to 1.744 kg while the vibration levels defined as peak particle velocity (PPV) become more tolerable around 300 ms shot durations.
机译：隧道施工中由炸药产生的爆炸引起的地面震动可能会导致市区或市区附近的结构损坏。因此，爆破的目的必须是抑制振动影响并减轻对结构的潜在危害。但是，人类对振动做出反应的心理特征涉及高度主观的态度，即即使没有发生结构性破坏，哪种环境是“可接受的”。因此，我们采用了环保的，易于在隧道施工中使用的半表面谨慎爆破方法。此方法中的小电荷顺序引爆，以产生最小的副作用。该方法已在伊斯坦布尔的隧道施工中进行了多次实验测试。在这些实验中，炸药的持续时间以及炸药数量都得到了精心控制。关于人的响应，与长持续时间（9000或480毫秒）相比，短持续时间（约300毫秒）可获得更好的结果。最大协同炸药装药量从3.088千克减少到1.744千克，而定义为峰值粒子速度（PPV）的振动水平在300毫秒的发射持续时间内变得更加可承受。

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