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A Grouting Gravity Anchor Pile Foundation Suitable for Medium Water Depth

A technology of pile foundation and gravity anchor, applied in the field of offshore engineering infrastructure construction, can solve problems such as increasing the length of anchor piles, adverse effects of construction and engineering cost, etc., and achieve increased vertical uplift bearing capacity and easy control of construction quality. , improve the effect of safety reserves

Active Publication Date: 2021-04-27
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to meet the requirements of vertical uplift bearing performance, the length of the anchor pile must be greatly increased, which will bring huge adverse effects on construction and project cost

Method used

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  • A Grouting Gravity Anchor Pile Foundation Suitable for Medium Water Depth
  • A Grouting Gravity Anchor Pile Foundation Suitable for Medium Water Depth
  • A Grouting Gravity Anchor Pile Foundation Suitable for Medium Water Depth

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with accompanying drawing.

[0024] Such as Figure 1 to Figure 3 As shown, the present invention includes a mooring cable 1, a grouting hose 2, a pile cap 3, a pressure relief valve 4, a suspension ring 5, a connecting bolt 6, a side wall 7, a grouting inner pipe 8, a bottom plate 9, and a steel pipe pile 10 , top plate 11, thick vertical plate 12, thin vertical plate 13, reinforcement plate 14, pile plate 15, slurry pipe 16, transfer plate 17, mooring ring 18, shear key 19, grouting machine 20, pressure gauge 21 and Skirt 22. Such as figure 1 As shown, the side wall 7, the bottom plate 9 and the top plate 11 jointly form a cylindrical gravity chamber, the top plate 11 and the bottom plate 9 are made of steel circular plates, and the side wall 7 is circular, and they are welded together to form a cylindrical gravity chamber . Wherein, the center of top plate 11 and bottom plate 9 is reserved to be...

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Abstract

The invention discloses a grouting type gravity anchor pile foundation suitable for medium water depth, which comprises a gravity chamber and steel pipe piles. The gravity chamber is located on the mud surface of the seabed, and a pile plate is arranged on the bottom surface of the gravity chamber. The steel pipe piles described above run through the entire gravity chamber and the pile plate, and are inserted deep into the seabed. Among them, the steel pipe piles located inside the gravity chamber are provided with several rows of shear keys distributed along the circumference of the steel pipe piles. The bottom is provided with a number of skirts, the skirts are inserted into the seabed, and the gravity chamber is provided with a grouting inner pipe, and the grouting inner pipe is connected with a grouting machine. The gravity chamber of the present invention can form an obvious additional self-weight section. By combining the grouting technology, the self-weight of the anchor pile foundation after the completion of the laying can be further increased, thereby effectively increasing the vertical pull-out bearing capacity and forming a full-angle anti-mooring The capacity of the cable load is improved, and the setting of the bottom apron further improves the horizontal bearing performance, and the device of the present invention can be prefabricated as a whole, which is convenient for construction.

Description

technical field [0001] The invention relates to the field of marine engineering infrastructure construction, in particular to a grouting type gravity anchor pile foundation suitable for medium water depths. Background technique [0002] In recent years, the new energy industry and the offshore oil and gas development industry have flourished rapidly. In order to obtain more energy, the scope of engineering construction has gradually shifted from shallow seas to medium-depth oceans, and the base (foundation) of marine engineering structures has also changed from a fixed type to a floating type composed of mooring cables and anchoring foundations. With the increasing number of engineering practices, some problems in the engineering design, construction and application of floating foundations are gradually being valued by experts in related fields and seeking feasible solutions. Most of the traditional anchor piles are steel pipe piles with relatively small length and diameter...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D27/12E02D27/50
CPCE02D27/12E02D27/50
Inventor 黄挺侯利军谭慧明赵旭张璟泓李聪山
Owner HOHAI UNIV
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