水下疏浚爆破对灌注桩式码头振动影响研究

Research on Vibration Effect of Underwater Dredging Blasting on Bored Concrete Pile Pier

安徽铜陵上峰水泥专用码头为典型的灌注桩式多层框架结构,针对邻近区域进行的水下疏浚钻爆开挖进行爆破振动安全监测,为码头建筑物爆破振动安全评价和优化爆破施工参数及工艺提供依据。并分析了该码头在水下爆破振动激励下的结构响应特性和爆破施工的具体控制措施。

The pier of Shangfeng Cement Production Company in Tongling, Anhui Province, is a typical bored concrete pile multi-framed pier. In order to provide evidence for a safety evaluation on the main terminal building and equipment of the pier, optimization of blasting parameters and construction technology, a vibration monitoring was conducted in the process of underwater dredging drilling and blasting in the vicinity of the pier. The vibration characteristics of the structure of the pier over underwater blasting and the control measures of blasting construction was also analysed.