Self-traveling submarine pipeline burying device and construction technique thereof

Abstract

The invention relates to a self-traveling submarine pipeline burying device and a construction technique thereof. The self-traveling submarine pipeline burying device comprises a crawler traveling mechanism, a centering mechanism, an injection ground breaking mechanism, a main body mechanism and a high-pressure current generation mechanism, wherein the crawler traveling mechanism is arranged on the left and right sides of the lower part of the main body mechanism; the centering mechanism is perpendicular to the main body mechanism and is arranged at the center of the front end of the main body mechanism; the injection ground breaking mechanism is arranged below the main body mechanism; and the centering mechanism holds the pipeline, the injection ground breaking mechanism breaks the ground under the action of the crawler traveling mechanism, and the centering mechanism is matched with the crawler traveling mechanism to continuously adjust, thereby implementing self pipeline track traveling. The centering mechanism is used for clamping and positioning the pipeline, thereby tracking the pipeline in real time and implementing the self feeler inspection on the route. The waterway switching unit is utilized to perform sectional switching on waterways, thereby implementing sectional centralized ground breaking at different heights in the submarine trench and enhancing the ditching efficiency under the waterway conditions of limited flow rate and delivery lift.

Description

technical field [0001] The invention relates to a technology in the field of marine engineering, in particular to a self-propelled submarine pipeline embedding device and a construction process thereof. Background technique [0002] In terms of submarine pipeline laying, inspection and maintenance technology, the submarine pipeline laying system is divided into towed and self-propelled systems. Among them, the traction power of the sliding shoe dragging type is extremely powerful, the control is difficult, and the requirements for supporting the mother ship are also high, and the entire system is relatively large; the forward power of the sliding shoe self-propelled type is driven by propellers, and its capacity is limited, which is suitable for soft soil operations; The self-propelled type is driven by crawlers, which has wide geological adaptability, strong ability and high technical requirements. At present, the crawler self-propelled pipeline embedding system is the dev...

AI Technical Summary

Problems solved by technology

[0003] By replacing different trenching machines on the tracked vehicle carrier, three major problems need to be solved for subsea pipeline burial: the pressure resistance and sealing of the track wheel system on the seabed; how to track the pipeline and realize the problem of crawler tracking and trenching ; How to solve the possible impact of the crawler self-propelled pipeline embedding system on the pipeline, resulting in pipeline damage

However, this technology requires repeated trenching to reach the set depth, and it is necessary to find the location of the pipeline through routing and positioning, which reduces the embedding efficiency; deep water work

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