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A platform for research: civil engineering, architecture and urbanism
Large-curvature long pipe joint immersed tube installation linear pre-control method
The invention relates to the technical field of immersed tube installation, in particular to a large-curvature long-tube-section immersed tube installation linear pre-control method which comprises the steps that S1, the axis deviation Z1 generated by the prefabricated length of an immersed tube to be installed is calculated; s2, the axis deviation Z2 generated after prefabrication of the immersed tube to be installed is calculated; s3, calculating an axis deviation Z3 generated by the transverse inclination angles of the steel shells at the head end and the tail end of the immersed tube; s4, the axis deflection angle gamma generated by the installed pipe joint is calculated; s5, the tail end axis deviation Z3 generated by the axis deflection angle generated by the installed pipe joint to the immersed pipe to be installed is calculated; s6, according to the deviation results of the step S1, the step S2 and the step S5, linear pre-control is conducted on the immersed tube to be installed, and the tail end axis deviation ZE of the immersed tube to be installed is calculated; an effective verification means is provided for underwater measurement work which is difficult to control, axial deviation and mileage of a subsequent pipe joint are estimated through prefabricated data of the immersed tube and actual posture data of the installed immersed tube, the installation risk of a final joint is reduced, and the installation linear deviation of the immersed tube can be within a controllable range.
本发明涉及沉管安装技术领域，尤其涉及一种大曲率长管节沉管安装线形预控方法，包括：S1、计算待安装沉管预制长度产生的轴线偏差Z1；S2、计算待安装沉管预制后产生的轴线偏差Z2；S3、计算沉管首、尾两端端钢壳的横向倾角产生的轴线偏差Z3；S4、计算已安装管节产生的轴线偏角γ；S5、计算已安装管节产生的轴线偏角对待安装沉管产生的尾端轴线偏差Z3；S6、根据步骤S1、步骤S2、步骤S5所的偏差结果，对待安装沉管进行线形预控，计算其尾端轴线偏差ZE；为难以控制的水下测量工作提供了有效的验证手段，通过沉管预制的数据与已安装沉管的实际姿态数据对后续管节的轴偏与里程进行预估，降低了最终接头的安装风险，可使沉管安装线形偏差在可控范围内。
Large-curvature long pipe joint immersed tube installation linear pre-control method
The invention relates to the technical field of immersed tube installation, in particular to a large-curvature long-tube-section immersed tube installation linear pre-control method which comprises the steps that S1, the axis deviation Z1 generated by the prefabricated length of an immersed tube to be installed is calculated; s2, the axis deviation Z2 generated after prefabrication of the immersed tube to be installed is calculated; s3, calculating an axis deviation Z3 generated by the transverse inclination angles of the steel shells at the head end and the tail end of the immersed tube; s4, the axis deflection angle gamma generated by the installed pipe joint is calculated; s5, the tail end axis deviation Z3 generated by the axis deflection angle generated by the installed pipe joint to the immersed pipe to be installed is calculated; s6, according to the deviation results of the step S1, the step S2 and the step S5, linear pre-control is conducted on the immersed tube to be installed, and the tail end axis deviation ZE of the immersed tube to be installed is calculated; an effective verification means is provided for underwater measurement work which is difficult to control, axial deviation and mileage of a subsequent pipe joint are estimated through prefabricated data of the immersed tube and actual posture data of the installed immersed tube, the installation risk of a final joint is reduced, and the installation linear deviation of the immersed tube can be within a controllable range.
本发明涉及沉管安装技术领域，尤其涉及一种大曲率长管节沉管安装线形预控方法，包括：S1、计算待安装沉管预制长度产生的轴线偏差Z1；S2、计算待安装沉管预制后产生的轴线偏差Z2；S3、计算沉管首、尾两端端钢壳的横向倾角产生的轴线偏差Z3；S4、计算已安装管节产生的轴线偏角γ；S5、计算已安装管节产生的轴线偏角对待安装沉管产生的尾端轴线偏差Z3；S6、根据步骤S1、步骤S2、步骤S5所的偏差结果，对待安装沉管进行线形预控，计算其尾端轴线偏差ZE；为难以控制的水下测量工作提供了有效的验证手段，通过沉管预制的数据与已安装沉管的实际姿态数据对后续管节的轴偏与里程进行预估，降低了最终接头的安装风险，可使沉管安装线形偏差在可控范围内。
Large-curvature long pipe joint immersed tube installation linear pre-control method
大曲率长管节沉管安装线形预控方法
XU LIANG (author) / WANG DIANWEN (author) / SHANG QIANKUN (author) / HE YAFENG (author) / SONG JIANGWEI (author) / SUN YANGYANG (author) / TIAN ZHIXU (author) / LV HUSHENG (author) / WANG CHONG (author) / YANG WEIGUANG (author)
2023-08-29
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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