Method for connecting steel pipe sheet pile joints

The method addresses soil entry and engagement issues in steel pipe sheet pile joints by using high-pressure water and controlled water pressure to ensure accurate driving and effective cleaning and filling, improving the connection process.

JP2026085950APending Publication Date: 2026-05-26PENTA OCEAN CONSTRUCTION CO LTD

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
PENTA OCEAN CONSTRUCTION CO LTD
Filing Date
2024-11-14
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Conventional methods for connecting steel pipe sheet pile joints face issues such as soil entering the joint pipes during driving, leading to improper engagement, reduced accuracy, and potential detachment or breakage, along with uneven compartment sizes complicating cleaning and filling processes.

Method used

A method involving a tubular leading joint member with a high-pressure water injection nozzle at its lower end, controlled water pressure based on driving angle measurement, and vertically oriented slits to engage with a trailing joint member, ensuring soil removal and maintaining verticality during driving, with communication openings for effective cleaning and filling.

Benefits of technology

The method reduces penetration resistance, improves driving accuracy, prevents joint detachment, ensures thorough cleaning, and facilitates reliable mortar filling, thereby enhancing the connection process of steel pipe sheet pile joints.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2026085950000001_ABST
    Figure 2026085950000001_ABST
Patent Text Reader

Abstract

To provide a method for connecting steel pipe sheet pile joints that allows for the suitable joining of joint members of adjacent steel pipe sheet piles. [Solution] In this method of connecting steel pipe sheet piles, a high-pressure water injection nozzle 11 with its nozzle facing downward is provided at the lower end of the outer surface of the trailing joint member 5. The trailing steel pipe sheet pile 2 is driven while excavating the soil 9 inside the leading joint member 4 with high-pressure water 12 injected from the high-pressure water injection nozzle 11, and the water pressure of the high-pressure water 12 is controlled based on the measurement result while measuring the driving angle of the trailing steel pipe sheet pile 2.
Need to check novelty before this filing date? Find Prior Art