Novel grouting type gravity anchor pile foundation suitable for medium water depth

Abstract

The invention discloses a novel grouting type gravity anchor pile foundation suitable for medium water depth. The novel grouting type gravity anchor pile foundation comprises a gravity chamber and a steel tube pile, the gravity chamber is positioned on the seabed mud surface, a pile disc is arranged on the bottom surface of the gravity chamber, the steel tube pile penetrates through the whole gravity chamber and the pile disc and is inserted into the deep position of a seabed, wherein a plurality of rows of shear keys distributed in the circumferential direction of the steel tube pile are arranged on the steel tube pile located in the gravity chamber, a plurality of skirt boards are arranged at the bottom of the gravity chamber and inserted into the seabed, and a grouting inner tubes is arranged in the gravity chamber and connected with a grouting machine. According to the invention, the gravity chamber can form an obvious additional self-weight section, the self-weight of the anchor pile foundation after driving can be further increased by combining the grouting technology, so that the vertical uplift bearing capacity is effectively increased, the full-angle mooring cable load resistance is formed, the horizontal bearing performance is further improved by arranging the skirt boards at the bottom, and the device can be integrally prefabricated and is convenient to construct.

Description

technical field [0001] The invention relates to the field of marine engineering infrastructure construction, in particular to a novel 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 di...

AI Technical Summary

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

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