螺柱焊在沉管隧道項目中的應用研究

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中圖分類號：TG457.3 文獻標志碼：A

Research on Application of Stud Welding in Immersed Tunnel Projects

MALing， ZHU Xiaoyan， CHEN Yanfang， PAN Junfa， LIU Ya （CSSC Huangpu Wenchong Shipbuilding Co.，Ltd.，Guangzhou 511462，China）

Abstract： This study addresses technical challenges in high-density stud cluster welding for stel-concrete composite structures in immersed tunnel enginering.Systematic research was conducted on stud welding process optimization， quality control， and engineering applications.Design of experiments was adopted to optimize welding parameters，effectively resolving quality issues such as arc blow deflection， necking defects，and porosity. A comprehensive quality management system covering pre-weld preparation， in-process control， and postweld inspection was established， significantly improving welding reliability. The outcomes provide a systematic technical solution for high-density stud welding in subsea tunnels，demonstrating substantialvalue for similar major engineering projects.

Key words： immersed tunnel; stud welding; parameter optimization;quality control; subsea engineering

1 引言

近年來，伴隨著鋼-混凝土組合結構的發(fā)展，螺柱焊在工程建設中的應用越來越多，沉管隧道同樣采用鋼-混凝土組合結構，因沉入海底，對焊接技術有了更高要求：一方面因長期承受海底腐蝕、高壓及復雜荷載的影響，結構強度的需求更高了；另一方面因數(shù)百萬顆焊釘?shù)拇笠?guī)模焊接，焊接速率需要達到更高水平。（剩余4373字）