Gravity anchor capable of achieving stable submergence and submergence method thereof

Abstract

The invention relates to the technical field of ocean engineering gravity anchoring, in particular to a gravity anchor capable of achieving stable submergence and a submergence method thereof.The gravity anchor capable of achieving stable submergence comprises an anchor body (1) and is characterized in that the anchor body (1) is of a big-end-down prism frustum or circular truncated cone structure, a perpendicular through hole (3) penetrating through the upper and lower surfaces of the anchor body is formed in the central axis or the position close to the central axis of the anchor body (1), the perpendicular through hole (3) is a water through channel, and the portion below the perpendicular through hole (3) is expanded through the prism frustum or circular truncated cone structure (4).According to the gravity anchor, the actual sectional area of a traditional anchor block is changed, the sectional area is gradually decreased along with the water depth generally, the area of the bottom of the anchor block is decreased, the position of the center of gravity of the anchor block is changed, the tumble torque is decreased, and overturning and transverse drifting generated by imbalance caused by external influences are lowered during the installation operation of the anchor block, so that good stability and safety of a gravity anchor anchoring system such as a ship or a floating platform connected to the gravity anchor are kept, and the risk of economic losses caused by construction errors is effectively lowered.

Description

technical field [0001] The invention relates to the technical field of gravity anchoring in ocean engineering, and more specifically, to a gravity anchor with stable sinking and a sinking method thereof. Background technique [0002] Anchors are important devices used when ships, water surface facilities, floating platforms, etc. are moored. For water surface facilities, floating platforms, etc., it is very important to choose a suitable mooring system in terms of economy, stability, safety and reliability. Among the many mooring systems, the balance weight tension cable mooring with concrete gravity anchor block is more and more popular as a kind of mooring form with simple structure, easy construction, low cost and no special requirements on seabed soil quality. Adopted. However, due to construction errors, ocean currents, waves and other factors, the traditional gravity anchor block will produce a certain amount of rotation and horizontal drift during the installation o...

AI Technical Summary

Problems solved by technology

However, due to construction errors, ocean currents, waves and other factors, the traditional gravity anchor block will produce a certain amount of rotation and horizontal drift during the installation operation, and even eventually deviate far from the target delivery site.

In particular, in some sea areas with deep water depth and strong wind and waves, as well as occasions that require high construction precision, this error is unacceptable, and has caused a certain waste of financial and human resources

[0003] In addition, in order to increase the anchor holding force of the traditional gravity anchor, the anchor block will be placed on the bottom of the water with the big end down and the small end up in engineering applications. In this way, the settlement process of the traditional anchor block will be due to different Rotation and lateral drift due to balance factors, deviating from the intended delivery location

Images