梁向前;郑德明;张永哲;
LIANG Xiang-qian1,ZHENG De-ming2,ZHANG Yong-zhe1(1.China Institute of Water Resources and Hydropower Research,Beijing 100048,China;2.Shanghai Tongji Blasting Engineering Co.,Ltd.,Tianjin 300133,China)

• 1:中国水利水电科学研究院
• 2:上海同济爆破工程有限公司天津分公司

摘要(Abstract)：

以天津海河广场桥水下桥墩爆破拆除为例,分析了水下钻孔爆破的水击波形成特征,并通过爆破区的水中冲击波压力监测,实测了不同距离处的水击波压力大小和变化规律,研究了浅水区水中冲击波压力幅值、正压作用时间等作用特性,得到了海河浅水区水击波传播衰减公式。研究成果对指导工程设计施工和环境安全评估具有指导意义。
Taking underwater blasting demolition of Haihe piazza bridge piers of Tianjin as an example,the forming characteristic of shock wave in water for underwater drilling blasting is analyzed.By field monitoring,the pressure of shock in water for different distances is attained,the major parameter,such as pressure amplitude and positive action time,and the propagation attenuation rule of shock in water are researched in this paper.The result can helpful for engineering design and construction and environmental safety assessment.

关键词(KeyWords)： 水下钻孔爆破;水中冲击波;压力特性
Underwater drilling blasting;Shock wave in water;Pressure characteristics

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金面上项目(50779073)

作者(Authors): 梁向前;郑德明;张永哲;
LIANG Xiang-qian1,ZHENG De-ming2,ZHANG Yong-zhe1(1.China Institute of Water Resources and Hydropower Research,Beijing 100048,China;2.Shanghai Tongji Blasting Engineering Co.,Ltd.,Tianjin 300133,China)

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