武汉沌阳高架桥拆除爆破工程粉尘影响研究

Research on Dust Impact of Viaduct Demolition Blasting Engineering in Wuhan Zhuanyang

城市拆除爆破会产生大量的粉尘,不仅影响爆破作业人员的健康、污染环境和设备,同时影响城市居民的正常工作与生活,因此,对拆除爆破粉尘进行研究具有重要意义。针对武汉沌阳高架桥拆除爆破工程,合理的布设点位,监测高架桥拆除爆破工程的粉尘浓度。监测结果反映了爆破后粉尘的空间变化规律和时间变化规律。通过对监测结果进行分析,了解爆破粉尘扩散规律,最终推断出爆破粉尘以烟团的形式进行扩散。

Large amounts of dust, produced by city demolition blasting, not only affect the health of the blasting workers, pollutes the environment and equipment, but also affects work and life of urban residents. So it is meaning- ful to study the demolition blasting dust. According to the characteristics of demolition blasting engineering in Wuhan Zhuanyang viaduct, reasonable layout, monitoring the dust concentration of viaduct demolition blasting engineering. Monitoring results reflects the space changing rules and after the bursting of the monitoring results reflect the law of the change over space and the law of the change over time. Analyzed of the monitoring results, studied the dust dis- persion rules. Finally, it was concluded that blasting dust dispersed in the form of puff.