Projects

WESTMINSTER PIER EXTENSION

London Project

Case Study Overview

The Westminster Pier Extension allows more frequent River Bus services between Woolwich and North Greenwich to Westminster. The extension is a key part of the River Action Plan to improve TfL’s piers and increase capacity for passengers before 2020.

At a glance

  • Location: Westminster, London
  • Plant used: Haven Seaseven jack up barge
  • What we did: Designed and built a custom pile gate. The barge was reviewed to support a 180t crawler crane for piling operations and was then further reviewed with an additional RH28 drill rig on board.

The Challenge

Red7Marine was required to mobilise a 400t jack up barge down the Thames and through the London bridges. Once in location, the barge had to be assembled with appropriate leg length to carry out the work. Red7Marine was asked to design and build a piling gate to safely and accurately install the pile to extend the length of Westminster Pier.

During the contract the piling method had to be changed, which meant that Red7Marine had to mobilise a bored piling rig through the bridges on one of their flat top barges then had to transfer the rig from the floating transportation barge to the jack up barge. Red7Marine provided a full calculation package for this transfer operation and via their operations team successfully carried out the transfer of the rig onto the jack up barge.

London Project

The Solution

Red7Marine provided a full calculation package for this transfer operation and via their operations team successfully carried out the transfer of the rig onto the jack up barge.

London Project

Custom engineering

A pile gate was designed and built in-house by Red7Marine to accommodate the pile and its preinstalled guides. The gate needed to ensure that the pile was installed in the correct orientation.

Technical support

When the drilling technique was revised, Red7Marine calculated for an alteration to the drilling technique and additional plant required.

Complete package delivery

From planning to completion Red7Marine was able to support the client with all technical aspects of the project, including mobilising the plant and negotiating the many bridges on the way to the site.

Red7Marine provided a full calculation package for this transfer operation and via their operations team successfully carried out the transfer of the rig onto the jack up barge.

Westminster Pier Extension

Brighton Marina Phase Two

Brighton

Case Study Overview

In order to accommodate a new luxury apartment block in Brighton, part of the marina needed to reclaimed using a cofferdam. This would enable the water to be kept out and foundations to be built for the stunning seafront properties.

At a glance

  • Location: Brighton
  • Plant used: Haven Seariser 2 jack up barge
  • What we did: Red7Marine supported the piling operations during the installation of a sheet pile twin wall cofferdam.

The Challenge

The client at Brighton Marina needed to install a sheet pile twin wall cofferdam to close off a section of the marina to enable construction of foundations for a large apartment block.

Brighton

The Solution

Red7Marine provided stability calculations for the Haven Seariser 2, a 250t jack up barge, to accommodate a 120t crawler crane and the connection of piling gates to the jack up barge, enabling the installation of the sheet piling and tie rod system.

Brighton

Technical support

Early involvement with the client’s project team meant that Red7Marine was able to provide leg penetration and stability information in order to deliver the piling element of the project.

Partnering approach

The barge used for the Brighton Marina project has been in continual operation on a number of projects for the same client for the last four years. In fact the layout of the barge was developed in accordance to the clients needs.

Operational delivery

The Red7Marine operations team worked hand in hand with the client site team to deliver another safe and successful project.

Red7Marine provided stability calculations for the Haven Seariser 2, a 250t jack up barge, to accommodate a 120t crawler crane and the connection of piling gates to the jack up barge, enabling the installation of the sheet piling and tie rod system.

Brighton Marina Phase Two

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