A Fast and Reliable New Technology for Underwater Laying

Abstract

The invention relates to underwater arrangement, in particular to arrangement of a geotextile-geogrid complex which can play a role in isolating soil, reinforcing and reducing soil body deformation in soft foundation treatment projects such as reclamation projects and the like. In channel improvement projects, the novel technology is mainly used for protecting riverbed bottom matters in an arrangement range from being eroded by water to fulfill the aims of protecting the bottom and feet, preventing downcutting and protecting the engineering foundation. The conventional underwater arrangement lacks a key technology, so that the arrangement range and the axis deflection are difficult to control accurately, even phenomena of geo-mattress torsion, floating and the like occur, and the foundation stability and engineering quality cannot be ensured. The invention provides a novel quick and reliable underwater arrangement technology. In the technology, four important procedures, i.e., positioning, tiling, ironing and ballasting of the geo-mattress are combined organically by using the principles of tip anchoring, lower board arrangement barrel ironing and binding and throwing combination ballasting, so that the influences of load effects of wind, waves and the like and tide rise and fall on the construction during offshore operation are eliminated effectively, the geo-mattress can be quickly and accurately tiled on a coating surface, and the working efficiency is increased manifold.

Description

technical field [0001] The invention relates to a fast and reliable underwater laying technology, which is suitable for the technical field of foundation treatment in water conservancy and water transportation projects such as land reclamation and waterway regulation. Background technique [0002] Underwater laying, that is, laying geotextiles and geogrid complexes, can play the role of separating soil, reinforcing reinforcement, and reducing soil deformation in soft foundation treatment projects such as sea reclamation and land reclamation. In the waterway improvement project, it is mainly used to protect the riverbed bottom within the laying range from being eroded by water, so as to achieve the purpose of protecting the bottom, protecting feet, preventing washing and protecting the engineering foundation. Compared with inland river operations, offshore construction is more affected by loads such as wind and waves and tide level fluctuations. Therefore, existing underwater...

AI Technical Summary

Problems solved by technology

Compared with inland river operations, offshore construction is more affected by loads such as wind and waves and tide level fluctuations. Therefore, existing underwater laying technologies, such as skateboard laying methods, are difficult to accurately control the laying range and axis offset. During the laying process, the displacement of the hull is prone to track deviation, and the laying of the row body is prone to kinks and floating, which makes the stability of the foundation and the quality of the project unable to be guaranteed.

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