A Grouting Gravity Anchor Pile Foundation Suitable for Medium Water Depth

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...

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

Images