Double-degree-of-freedom sand blasting treatment device for submarine suspended pipeline

Abstract

The invention belongs to the field of oceanographic engineering and particularly relates to a double-freedom-degree sand throwing treatment device of suspended seabed pipelines. The double-freedom-degree sand throwing treatment device of the suspended seabed pipelines is installed on a barge and comprises a packaging structure, a longitudinal feed structure, a transverse feed structure, a hoisting structure and a control structure, wherein the packaging structure is used for packaging and bagging sand, the longitudinal feed structure and the transverse feed structure are used for carrying out construction positioning and transverse and longitudinal continuous construction control, the hoisting structure is used for transferring sand bags to suspension parts of the seabed pipelines from the barge, and the control structure is used for providing power for the whole device and carrying out construction control. Compared with the prior art, the device has the advantage that mechanization of the construction process of sand bag treatment of the suspended seabed pipelines is realized. Compared with traditional construction methods, the device has the advantages that sand packaging and sand bag throwing and filling are automatic and mechanized, a lot of manpower is not needed in the sand throwing process, the construction efficiency is improved, and the economic benefit is considerable.

Description

technical field [0001] The invention belongs to the field of marine engineering, and in particular relates to a double-degree-of-freedom sand blasting treatment device for suspended submarine pipelines, which is used for treating suspended submarine pipelines. Background technique [0002] Due to the influence of the complex underwater environment, submarine pipelines are prone to suspending phenomena. Under the action of sea waves and currents, vortex-induced vibrations will occur in the suspended pipe section, which will cause fatigue damage, shorten the service life, and bring additional economic losses. At present, in engineering practice, sandbag method, mortar air bag, steel structure support method, short pile anchorage and other methods are often used to control suspended pipelines. Among them, the sand bag method commonly used in engineering has the advantages of simple operation, economical and effective, etc. However, the construction method of the sand bag metho...

AI Technical Summary

Problems solved by technology

Among them, the sand bag method commonly used in engineering has the advantages of simple operation, economical and effective, etc. However, the construction method of the sand bag method is very backward. The general method is to manually pack the sand into bags on the shore, and then use the crane to remove the sand bags. Installed on the construction ship, when the construction ship reaches the sea surface above the suspended pipeline, the construction personnel will push the sand bag off the ship and fill it to the suspended part of the submarine pipeline

The above construction needs a lot of manpower to complete, time-consuming and labor-intensive

In addition, the sand bag method still has problems such as being unable to control whether the sand bag will hit the pipeline after entering the water, or whether it will fall into the suspended space and effectively fill it.

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