Pipe joint installation and positioning control system and method

Abstract

The invention relates to the technical field of engineering surveying, in particular to a pipe joint installation and positioning control system and method. The pipe joint installation and positioning control system provided by the invention comprises a positioning device arranged on an installing ship and used for obtaining position parameters of the positioning device, a sonar measuring and control device and a control device. The sonar measuring and control device is used for obtaining the relative towage position relation between a to-be-installed pipe joint and the installing ship and the relative installing position relation between the to-be-installed pipe joint and an already installed pipe joint through sonic wave communication. The control device is used for determining the current position of the to-be-installed pipe joint according to data measured by the positioning device and the sonar measuring and control device and outputting correcting parameters according to the current position and the preset position of the to-be-installed pipe joint so as to correct the current position. According to the pipe joint installation and positioning control system, the positioning device is arranged on the installing ship, and the to-be-installed pipe joint is positioned by means of the positioning device and the sonar measuring and control device so that the situation that the positioning accuracy of the to-be-installed pipe joint is affected due to deformation of survey towers in water can be avoided and accordingly the accuracy of control over pipe joint installation and positioning is improved.

Description

technical field [0001] The invention relates to the technical field of engineering measurement, in particular to a pipe joint installation positioning control system and method. Background technique [0002] With the progress of society and the development of science and technology, pipe section tunnels are more and more widely used in water transportation projects. The pipe section method tunnel construction is to sink the prefabricated pipe sections into the water and excavate the trenches in advance. A construction method in which pipe joints are assembled and connected together in water. [0003] At present, the total station method and the GPS method are commonly used methods for locating pipe joints in the water-saving sinking and docking construction. These two methods usually install a measurement tower at the beginning and end of the pipe joint, and set up a GPS positioning system or a prism on each measurement tower to perform absolute positioning of the pipe join...

AI Technical Summary

Problems solved by technology

Although the absolute coordinates of the pipe joints can be measured by the total station method or the GPS method, as the distance between the pipe joints to be installed and the installed pipe joints continues to shrink, the water entry depth of the pipe joints gradually increases. Deformation will cause a deviation between the actual coordinates of each feature point on the pipe joint and the coordinates calculated according to the results of the total station method or GPS method, which will affect the connection between the pipe joint to be installed and the installed pipe joint. The positioning accuracy of the pipe joints, resulting in a decrease in the installation and positioning accuracy of the pipe joints

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