针对广东清远水利枢纽船闸人字门总装焊接工程焊接量大,焊接强度高,焊缝形式多样,施工空间小等特点,通过焊接方案比选,确定采用先焊边柱,后焊中间梁格,最后焊梁格和面板的焊接方法。并详细介绍了人字门焊接技术,包括焊接材料、焊接流程、焊缝处理、焊接工艺参数选择等。结果表明,通过严格控制,人字门焊接变形和焊接质量满足要求。 Aiming at the characteristics of large welding volume, high welding strength, various forms of welding seam and small construction space in the ship lock of the Qingyuan water conservancy project of Qingyuan, Guangdong, it is determined that the first beam, the middle beam, Finally welding beam grid and panel welding method. And introduces the Miter door welding technology, including welding materials, welding process, weld treatment, welding process parameters selection. The results show that through strict control, the deformation and welding quality of Miter Gate meet the requirements.