桥梁工程水下冲孔桩基混凝土灌注施工控制要点——以阆中市嘉陵江四桥主塔群桩基础施工为例

On Key Control Points of Underwater Concrete Pouring of Punched Pile Foundation in Bridge Engineering

该文以阆中市嘉陵江四桥主塔群桩冲孔桩基水下混凝土灌注施工为例,结合工程实践经验,对混凝土灌注施工相关的泥浆指标与沉渣厚度检测、导管拼装下放、水下混凝土制备和灌注过程控制等环节工艺进行详细介绍,并对其中的施工控制要点进行总结阐述。

In this paper, based on the underwater concrete pouring of the main tower of NO.4 Bridge of Jialingjiang River in Langzhong, and related con-struction experience, some construction techniques are introduced like concrete pouring construction related mud index, and sediment thickness detec-tion, pipe installation, preparation and pouring process control of underwater concrete, and some key construction points are summarized.