A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to the technical field of ocean engineering and ship construction, in particular to a construction process of a self-elevating wind power installation platform pile leg, the unfolding blanking length size of a cylinder steel plate is L1 = DP + delta1 + delta2-delta4, the allowance of the two sides of the steel plate is L2 = L3 + delta1 + delta2 = L3 + 4 according to the blanking size of the width of a single-section cylinder, and it needs to be guaranteed that the straightness error of cutting is not larger than 1/1000 and not larger than 5 mm; the perpendicularity error in the thickness direction of the plate is not larger than 1 mm, the angle error of a cutting groove is +/-1 degree, the depth of a cutting mark is not larger than 0.5 mm, the parallelism of an unfolded length cutting line is smaller than 2 mm, thin-layer, narrow-channel and multi-channel welding is adopted during welding, welding deformation can be effectively reduced, meanwhile, the defects that a full penetration fillet weld is not fused and slag inclusion exists can be overcome, the welding qualification rate reaches 98% or above, and the welding quality is improved. And the quality is good, deformation caused by repair welding is reduced, the cost is reduced, and the construction period is shortened.
本发明涉及海洋工程及船舶建造技术领域，特别涉及了一种自升式风电安装平台桩腿的建造工艺，筒体钢板的展开下料长度尺寸按L1＝DP+δ1+δ2‑δ4，钢板两侧余量根据单节筒体宽度下料尺寸按L2＝L3+δ1+δ2＝L3+4，切割需保证直线度误差不大于1/1000且≤5mm，板厚度方向垂直度误差不大于1mm，切割坡口角度误差±1°，割痕深度不大于0.5mm，展开长度切割线的平行度小于2mm，焊接时采用薄层、窄道、多道焊，能够有效的减少焊接变形，同时又可以避免全熔透角焊缝未融合与夹渣缺陷，焊接合格率达98％以上，不但质量好，又降低了补焊产生的变形，降低成本，缩短了施工工期。
The invention relates to the technical field of ocean engineering and ship construction, in particular to a construction process of a self-elevating wind power installation platform pile leg, the unfolding blanking length size of a cylinder steel plate is L1 = DP + delta1 + delta2-delta4, the allowance of the two sides of the steel plate is L2 = L3 + delta1 + delta2 = L3 + 4 according to the blanking size of the width of a single-section cylinder, and it needs to be guaranteed that the straightness error of cutting is not larger than 1/1000 and not larger than 5 mm; the perpendicularity error in the thickness direction of the plate is not larger than 1 mm, the angle error of a cutting groove is +/-1 degree, the depth of a cutting mark is not larger than 0.5 mm, the parallelism of an unfolded length cutting line is smaller than 2 mm, thin-layer, narrow-channel and multi-channel welding is adopted during welding, welding deformation can be effectively reduced, meanwhile, the defects that a full penetration fillet weld is not fused and slag inclusion exists can be overcome, the welding qualification rate reaches 98% or above, and the welding quality is improved. And the quality is good, deformation caused by repair welding is reduced, the cost is reduced, and the construction period is shortened.
本发明涉及海洋工程及船舶建造技术领域，特别涉及了一种自升式风电安装平台桩腿的建造工艺，筒体钢板的展开下料长度尺寸按L1＝DP+δ1+δ2‑δ4，钢板两侧余量根据单节筒体宽度下料尺寸按L2＝L3+δ1+δ2＝L3+4，切割需保证直线度误差不大于1/1000且≤5mm，板厚度方向垂直度误差不大于1mm，切割坡口角度误差±1°，割痕深度不大于0.5mm，展开长度切割线的平行度小于2mm，焊接时采用薄层、窄道、多道焊，能够有效的减少焊接变形，同时又可以避免全熔透角焊缝未融合与夹渣缺陷，焊接合格率达98％以上，不但质量好，又降低了补焊产生的变形，降低成本，缩短了施工工期。
Construction process of self-elevating wind power installation platform pile leg
一种自升式风电安装平台桩腿的建造工艺
PAN WEI (author)
2024-06-28
Patent
Electronic Resource
Chinese
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