The invention belongs to the technical field of immersed tube measurement and control, and relates to a pipe joint immersion coarse positioning system and method based on a sling of an immersed tube transportation and installation integrated ship. The system comprises four sets of positioning assemblies which are arranged at four pulley wells of an integrated ship, wherein each set of positioning assembly comprises a marking line, a binocular camera shooting positioning instrument, a measuring rod and a depth finder transducer; the marking line is reflective, is laid on a sling fixedly connected with the integrated ship in the pulley block and extends in the length direction of the sling; the binocular camera shooting positioning instrument is mounted on the side wall of the pulley well and faces the marking line to measure the direction angle of the marking line; the measuring rod is vertically mounted at the pulley well, and the bottom end of the measuring rod protrudes out of the bottom of the integrated ship and is submerged under the water surface; the depth finder transducer is installed at the bottom end of the measuring rod to measure the distance between the depth finder transducer and the top face of the to-be-installed pipe joint. Through the arrangement of the four sets of positioning assemblies on the integrated ship, the purpose that reliable coarse positioning can be conducted on immersion of the to-be-installed pipe joint without arranging a measuring tower on the top face of the to-be-installed pipe joint is achieved.
本发明属于沉管测控技术领域,涉及一种基于沉管运安一体船吊索的管节沉放粗定位系统及方法。该系统包括布设于一体船四个滑轮井处的四套定位组件,每套定位组件包括标记线、双目摄像定位仪、测杆和测深仪换能器;标记线有反光性,敷设于滑轮组中与一体船固定连接的吊索上并沿其长度方向延伸;双目摄像定位仪安装于滑轮井侧壁上并面向标记线以对其方向角进行测定;测杆竖直安装于滑轮井处,其底端凸出一体船底部并没于水面之下;测深仪换能器安装于测杆底端以测量其与待安管节顶面之间的距离。本发明通过一体船上四套定位组件的设置,达到了不必在待安管节顶面布设测量塔也能对待安管节的沉放进行可靠粗定位的目的。
Pipe joint sinking coarse positioning system and method based on slings of sinking pipe transportation and installation integrated ship
基于沉管运安一体船吊索的管节沉放粗定位系统及方法
28.03.2023
Patent
Elektronische Ressource
Chinesisch
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