A screw-pile for anchoring subsea cables and / or cable stabilizing and / or protection systems

The helical pile system addresses the limitations of static cable designs by enabling easy installation through scour protection devices and seabed, providing stable anchorage and longevity to submarine cables despite seabed changes, using a drill bit, spacer, and sacrificial anodes.

TW202632115APending Publication Date: 2026-08-01邦 安德烈亞森 亨里克
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Patent Information

Application Number
TW114149727
Authority / Receiving Office
TW · TW
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-12-17
Filing Date
2025-12-17
Publication Date
2026-08-01

AI Technical Summary

Technical Problem

Existing static cable designs for offshore wind farms are limited by their dynamic movement capabilities, prone to erosion due to seabed changes, and difficult to install without causing damage, necessitating a system that maintains cable position and stability despite seabed features and erosion.

Method used

A helical pile system with a drill bit, spacer, and threaded drill rod for easy penetration through scour protection devices and seabed, using micro-hammering to create a threaded hole, ensuring stability and anchorage without pre-drilling, and incorporating sacrificial anodes for marine protection.

Benefits of technology

The helical pile system provides long-term stability and anchorage to submarine cables, resisting seabed changes and erosion, facilitating easy installation and ensuring a lifespan of 35-40 years with enhanced anchoring strength.

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Abstract

This document relates to a helical pile (100) for anchoring a system (200) of a submarine cable (400). The helical pile (100) includes a drill bit end (110) for drilling through the seabed and / or scour protection device (500), a spacer (120), and a threaded drill rod section (130). The helical pile (100) further includes a short bare drill rod (140) and an upper threaded end (150) adapted to interlock with a threaded through hole (211) of the system (200). This document further relates to a method for driving the helical pile (100) into the scour protection device and / or the seabed (500) and the use of the helical pile (100). The screw pile (100) further comprises a short bare bore rod (140), and an upper threaded end (150) adapted to interlock with a threaded thorough hole (211) of the system (200). The document further relates to a method for driving the screw-pile (100) into the scour protection and / or seabed (500) and the use of such screw-pile (100).
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