Open sea immersed tube floating transportation installation integrated measurement and control system and measurement and control method thereof
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A measurement and control system, measurement and control method technology, applied in general control systems, control/regulation systems, measuring devices, etc., can solve problems with increasingly high requirements
Pending Publication Date: 2020-11-27
CCCC FIRST HARBOR ENG +2
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However, with the advancement of science and technology and the acceleration of the modernization process, the installation of large-scale immersed tube tunnels is gradually developing towards the open sea and deep water, and the construction technology is gradually optimized. The basic measurement method of underwater positioning for immersed tube installation is difficult to meet the above requirements
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Embodiment 1
[0064] Example 1—Measurement and control method of the integrated measurement and control system for floating installation of immersed tubes in open sea
[0065] The measurement and control method of the integrated measurement and control system for floating installation of immersed tubes in the open sea, the specific steps are as follows:
[0066] (1) Install the GPS positioning device and Beidou receiver on the immersed tube measurement tower and the integrated ship, install the biaxial tilt sensor on the immersed tube, and then use the marine information acquisition unit to collect the marine data of the National Ocean Forecasting Center;
[0067] (2) On-site measurement and reception of the preliminary positioning data measured by the GPS positioning device and the Beidou receiver, the attitude data of the immersed tube measured by the tilt sensor, and the marine data collected by the marine information acquisition unit;
[0068] (3) The preliminary positioning data and th...
Embodiment 2
[0072] Example 2—Using the offshore immersed tube to float and install the integrated measurement and control system for precision testing
[0073] (1) Install positioning equipment:
[0074] Measure the position of the tower on the top surface of the immersed tube joint, install two GPS positioning devices at the beginning and the end, and install three dual-axis tilt sensors. figure 2 ;
[0075] (2) Select feature points:
[0076] Select 10 pairs of feature points on the end face of the E1 steel shell of the ship tube, S represents the head end (define the GINA end as the head end), W represents the tail end (define the non-GINA end as the tail end). Schematic diagram of the distribution of feature points on the end surface image 3 ;
[0077] (3) Use the positioning equipment on the measuring tower and the total station to measure the coordinates of the immersed tube:
[0078] After the above-mentioned parameters are entered into the measurement and control system, th...
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Abstract
The invention provides an open sea immersed tube floating transportation installation integrated measurement and control system and a measurement and control method thereof, and belongs to the field of immersed tube measurement and control. The measurement and control system mainly comprises an immersed tube measurement and control module, a coordinate conversion module, a display platform and software and hardware equipment. The immersed tube measurement and control module comprises an undocking measurement and control unit, a floating transportation measurement and control unit, a mooring measurement and control unit and an installation measurement and control unit. The measurement and control system is based on the construction process of the immersed tube tunnel, the measurement and control system corresponding to the immersed tube tunnel is researched and developed, the corresponding measurement and control units can be switched to in different construction stages, seamless jointof the process is achieved, and accurate positioning and precision guarantee are provided for all the processes. The measurement and control system and the measurement and control method provided by the invention have very wide application prospects in the field of immersed tube measurement and control.
Description
technical field [0001] The invention belongs to the field of measurement and control of immersed tubes, and in particular relates to an integrated measurement and control system and a measurement and control method for floating installation of immersed tubes in open sea. Background technique [0002] The traditional underwater positioning measurement methods for immersed tube installation at home and abroad mainly include absolute positioning method and relative positioning method. The absolute positioning method includes the total station method and the GPS-RTK method, and the relative positioning method includes the sonar method and the mechanical pull wire method. However, with the advancement of science and technology and the acceleration of the modernization process, the installation of large-scale immersed tube tunnels is gradually developing towards the open sea and deep water, and the construction technology is gradually optimized. The basic measurement method for un...
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