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Combined test control system and method for sink pipe installation

A measurement and control system and a combined technology, applied in the field of subsea tunnel engineering, can solve problems such as the difficulty of positioning work

Inactive Publication Date: 2017-08-08
CCCC FIRST HARBOR ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Different positioning accuracy requirements bring great difficulty to the positioning work during the installation of pipe joints

Method used

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  • Combined test control system and method for sink pipe installation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: as figure 1 As shown, this embodiment provides a combined measurement and control system for immersed tube installation, including a transponder and a measurement tower;

[0022] At least two of the transponders are arranged on the upper surface of the head end of the pipe joint; they are used to respond to the sonar signals sent by the wave transmitter and receiver on the installation ship to determine the real-time position of the transponders; in this embodiment, the transponders include the first A transponder, a second transponder, a third transponder and three transponders; at the same time, in this embodiment, the connection line between the first transponder and the second transponder is parallel to the front end of the pipe joint, and the first transponder The distance between the first transponder and the second transponder is greater than half of the width of the pipe section. Preferably, the first transponder and the second transponder are arr...

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Abstract

The invention relates to a seabed passage project, in particular to a combined test control system and method for sink pipe installation. The combined test control system provided by the invention is characterized in that according to different requirements of the head end and the tail end on the positioning precision in the pipe point sinking process, a sonar transponder is arranged at the head end; meanwhile, a measuring tower is arranged at the tail end; in addition, an RTK measuring device is fixedly arranged on the tower; during the application, the response sonar equipment arranged on the installed pipe joint is used for performing relative positioning on the response sonar equipment (transponder) arranged on the pipe joint top surface of the pipe joint to be installed at the head end of the pipe joint; further, the pipe joint head end precise position is obtained by using the position of the installing boat; an RTK positioning method is used at the tail end; an RTK device arranged on a measuring tower is subjected to absolute positioning; further, the precise position of the tail end of the pipe joint is obtained. Through the system, the concrete position of the pipe joint in the installing process can be precisely; the accurate reference data is provided for the installing control of the pipe joint.

Description

technical field [0001] The invention relates to subsea tunnel engineering, in particular to a combined measurement and control system for immersed tube installation. Background technique [0002] As an important form of cross-domain transportation infrastructure in water areas, subsea tunnels are generally considered to be the first choice for crossing busy waters due to their small impact on shipping. In the field of subsea tunnel construction, immersed tube tunnels are the most common. The tunnel is built by first prefabricating the immersed tube sections in deep docks on the shore, and then floating and transporting the sectionally prefabricated tube sections to the target installation position by tugboats, and then submerging them sequentially. During the pipe joint sinking process, it is necessary to maintain the positioning monitoring of the pipe joint position from the beginning to the end; and when the pipe joint length is longer (such as the pipe joint length is gre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C25/00
CPCG01C25/00
Inventor 林鸣尹海卿宿发强张秀振刘兆权季浩华高纪兵张超陶振杰宋江伟徐良锁旭宏孙阳阳成益品
Owner CCCC FIRST HARBOR ENG
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