Splicing trussed type pile leg device

Abstract

The invention discloses a splicing trussed type pile leg device which comprises trussed type pile legs connected with pile shoes. Each trussed type pile leg comprises three chord members, wherein the vertical section of each chord member is distributed in an equilateral triangle shape. The outer circumferential face of each chord member is symmetrically connected with eleven racks in the axial direction, and the three vertical faces, in the length direction, of the chord members are respectively provided with at least two horizontal supporting rods which are isolated in an up-and-down mode and connected with the chord members. The splicing trussed type pile leg device comprises at least two layers, connecting positioning joints used for the chord members are arranged between the trussed type pile legs, and each connecting positioning joint is composed of a positioning column, a clamping sleeve, an elastic cushion block and a bolt pair. According to the splicing trussed type pile leg device, through reasonable subsection, ingenious design and the scientific splicing structure, an integrated self-elevating trussed type pile leg is changed to be in a splicing structure form with multiple layers, and the splicing trussed type pile leg device is simple in structure, convenient to assemble and disassemble, safe, reliable and wide in application range.

Description

technical field [0001] The invention relates to an assembled truss type pile leg device, in particular to a truss type pile leg device for a self-elevating ocean platform. It belongs to the field of marine engineering machinery. Background technique [0002] With the development of the offshore oil industry, the jack-up offshore platform will develop into the deep water, and the environmental conditions faced by the platform will become more and more severe. As an important part of the jack-up offshore platform, the legs play an important role in supporting the offshore platform and transferring the environmental loads on the platform to the seabed. Each self-elevating offshore platform has 3 or more legs to support when the offshore platform changes the operating location, the platform needs to be towed to another location. Before towing, each leg is pulled out of the seabed and lifted above the sea level using the device on the platform, and then towed under good environ...

AI Technical Summary

Problems solved by technology

This has the following disadvantages: (1) During the towage process, the pile legs are lifted above the sea level, which is greatly affected by the environmental load and poses a great threat to the safety of the platform relocation

(2) The length and quality of the pile legs are very large, and the operation is inconvenient and dangerous when lifting the pile legs

(3) Once the design water depth of the platform is determined, the length of the pile legs is also determined. For some sea areas where the working conditions are allowed but the water depth is deeper, its operating range is limited

However, it cannot solve the current operating problems of deep-water platforms and the safety issues of platform towing.

Images