本文在大量实验室研究和室外模拟试验基础上,采用现场的原材料,通过优化配合比设计,配制高效水下不分散混凝土和水下灌注桩混凝土(自密实混凝土),抽样检测及超声回弹结果表明水下混凝土满足强度设计要求,通过综合分析认为使用水下混凝土有明显的技术经济效益,值得在海港工程中推广应用。 Based on a large number of laboratory research and outdoor simulation tests, the raw materials of the site and the design of optimized mix ratio were used to prepare highly effective underwater non-dispersible concrete and underwater concrete pile (self-compacting concrete), sampling and ultrasonic rebound results It shows that the underwater concrete meets the strength design requirements. Through comprehensive analysis, it is considered that the use of underwater concrete has obvious technical and economic benefits and is worth popularizing and applying in the harbor engineering.