Coupling type bionic pile shoe for self-elevating platform
A self-elevating platform and coupled technology, applied to sheet pile walls, buildings, infrastructure engineering, etc., can solve the problems of increased difficulty in pulling out legs and increased time for pulling out legs, and achieve high pile insertion efficiency, fast pile pullout speed, and resistance small effect
Active Publication Date: 2016-07-20
JIANGSU UNIV OF SCI & TECH
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Problems solved by technology
In order to achieve the purpose of increasing the contact area between the pile legs and the seabed ground and improving the stability of the platform, the existing spud can structures include circular, rectangular, polygonal and conical shapes, but they cannot effectively solve the problem of the platform being stuck in the process of piling. The problem of increasing the pulling time and increasing the difficulty of pulling out the piles caused by the greater resistance of the pile boots into the soil and the increase in the area of the pile boots
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[0018] Such as Figure 1 to Figure 3 As shown, a coupling type bionic spud can for self-elevating platforms of the present invention includes an upper cone 2, a lower cone 5 and legs 1, and several legs 1 are fixed on the upper cone 2, The shape of the upper cone 2 is egg-shaped, and the lower cone 5 is connected by two ball table-shaped first shells 4, the bottom of the last first shell 4 is the top of the next first shell 4, and the bottom end The first housing 4 is connected to the conical second housing, the cross section of the lower cone 5 is circular, the outer contour of the upper cone 2 is a surface of rotation, and the generatrix equation of the surface of rotation is Take (0≤x 1 ≤33.43) part, x 1 The axis is the vertical centerline of the spud can, y 1 for the vertical x 1 and through the bottom of the outer contour, x 1 and y 1 The point of intersection is the origin, x 1 The axis is the axis of rotation, and the coordinates are as figure 1 and figure 2 ...
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The invention discloses a coupling type bionic pile shoe for a self-elevating platform. The coupling type bionic pile shoe comprises an upper cone body, a lower cone body and pile legs. The pile legs are fixed to the upper cone body, the appearance of the upper cone body is in an egg shape, the lower cone body is formed through connection of a plurality of spherical stable first shells, the bottom of one last first shell is the top of the next first shell, and the first shell at the bottommost end is connected with a conical second shell. According to the coupling type bionic pile shoe for the self-elevating platform, in the pile inserting process, the pile shoe lower cone body with the field snail bionic appearance is in contact with the seabed, after the resistance of the pile shoe reaches a certain value, the pile shoe does not continue to sink, and the platform stably stands on the sea; and the pile shoe resistance is small, and the pile inserting efficiency is high. In the pile pulling process, compared with a traditional pile shoe structure, the pile shoe upper cone body with the egg-shaped bionic appearance can reduce the resistance influence of seabed sludge on the pile shoe when platform pile pulling is carried out during pile shoe unearthing process, the pile pulling speed is higher, work efficiency is improved, and the higher safety and higher reliability are achieved.
Description
technical field [0001] The invention relates to a self-elevating platform coupling type bionic spud can, and is suitable for jack-up drilling platform equipment for oil and gas exploration and development in continental shelf sea areas. Background technique [0002] In the working environment of the jack-up drilling platform, the seabed is relatively soft. By installing a relatively large pile leg on the pile leg, the jack-up platform can obtain the supporting force required for its work and reduce the impact on the seabed. pressure. The design level of spud shoes is directly related to the performance of inserting and pulling piles and standing stability of the entire platform. Since the environmental load on the jack-up platform increases significantly with the increase of the working water depth, the requirements for the strength of the spud can, the stiffness of the pile-soil connection, the anti-slip capability, and the performance of pile insertion and extraction are ...
Claims
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IPC IPC(8): E02D5/72
CPCE02D5/72E02D2200/1692
Inventor 唐文献吴文乐廖天岸张建王淑妍苏世杰
Owner JIANGSU UNIV OF SCI & TECH