我国最大的海上自营结构物——南海涠11—4油田平台导管架。今年1月15日在深圳赤湾建成下水。这套完全由我国自行加工设计并建造的大型海上钢结构物,包括两座导管架,建成总重量为3200t,结构焊口缝长133300m。其中生活动力导管架型高49.8m,底部尺寸40.2m×26.725m,重量2100 t,仅次于1991年我国与麦德默公司合作完成的惠州26—1导管架。另 China’s largest marine self-supporting structures - South China Sea 11-4 oil platform platform jacket. January 15 this year, built in Chiwan, Shenzhen. This large-scale offshore steel structure entirely designed and constructed by our country includes two jacket pipes with a total built-up weight of 3200t and a structural seam length of 133300m. Among them, the living power pipe rack height is 49.8m, the bottom size is 40.2m × 26.725m and the weight is 2100t, which is second only to the Huizhou 26-1 jacket made by China in cooperation with Meidmer in 1991. another