Chord Phase Calibration Method for Jack-up Platform
A self-elevating platform and calibration method technology, which is applied in the field of chord phase calibration of self-elevating platforms, can solve problems such as potential safety hazards
Active Publication Date: 2020-11-24
WUHAN MARINE MACHINERY PLANT
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Problems solved by technology
When the string phase difference exceeds the maximum value allowed by the jack-up platform, it is very easy to cause safety hazards
Method used
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[0048] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0049] figure 1 It is a method flowchart of a chord phase calibration method for a self-elevating platform provided by an embodiment of the present invention, as shown in figure 1 As shown, the method includes:
[0050] Step 101, setting multiple chord phase recording devices on the lifting mechanism.
[0051] Wherein, a plurality of chord phase recording devices are provided in one-to-one correspondence with the plurality of chord rods, and the plurality of chord phase recording devices are respectively used to detect the chord phases of the corresponding chord rods.
[0052] figure 2 and image 3 It is a structural schematic diagram of a string phase recording device provided by an embodiment of the present invention, such as ...
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The invention discloses a chord phase calibration method for a self-elevating platform, and belongs to the technical field of offshore platform lifting systems. The chord phase calibration method comprises the steps that a plurality of chord phase recording devices are arranged on a lifting mechanism; ruling is conducted on the setting positions of a plurality of chord members; pile shoes are mounted on the horizontal mounting face; a platform structure is mounted on the mounting face; the connecting ends of one or more pile legs penetrate through the platform structure to be fixedly connectedwith the pile shoes; the third distance from the ruling position of each pile leg to the mounting face in the vertical direction is measured; one or more pile legs are adjusted according to the thirddistance; the first distance and the second distance are measured, and the fourth distance from the bottom of the platform structure to the bottoms of the pile shoes is determined according to the first distance and the second distance; and the fourth distance is input into the multiple chord phase recording devices to serve as the initial value of the multiple chord phase recording devices. According to the chord phase calibration method, the chord phase of each chord member can be detected accurately, and the safety of the self-elevating platform in the rising and falling processes is ensured.
Description
technical field [0001] The invention relates to the technical field of offshore platform lifting systems, in particular to a chord phase calibration method of a self-elevating platform. Background technique [0002] The jack-up platform belongs to the offshore mobile platform, and generally consists of a platform structure, a lifting mechanism, spud legs, and spud boots. In order to avoid the impact of waves when the jack-up platform is working, the platform structure is lifted above the sea surface by the lifting mechanism, and it relies on the support of the pile legs and pile shoes to stand on the seabed for drilling or other support operations. [0003] At present, there is a kind of self-elevating platform, which adopts truss-type legs. The truss-type legs include three legs, and each leg is provided with three chords. One end of the truss leg passes through the platform structure and is welded to the spud shoe. The truss leg is perpendicular to the platform structure,...
Claims
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IPC IPC(8): E02B17/08
CPCE02B17/0818
Inventor 朱正都盛文经鹏飞
Owner WUHAN MARINE MACHINERY PLANT