Quick Enquiry Call Us

Search

If you cant find what you’re after please don’t hesitate to contact us.

Select Region

Please select the global region website you'd like to view.

Asia
Japan

Quick Enquiry

Submit your enquiry using our online form and include a brief message about the type of issues you are experiencing. One of the Mainmark experts will contact you as soon as possible.

Hidden
This field is for validation purposes and should be left unchanged.

Project Profile V97189

Integrity Of Heritage Sea Wall Restored

Sub-industry
Heritage
Problems
Void Filling
Location
VIC
Year
2011
Solutions
Void Filling
Technology
Permeation Grouting

The problem

On the notorious “shipwreck coast” in Southwest Victoria, Australia, the heritage-listed Warrnambool Sea Wall, built by hand in 1880 takes the full force of the Great Southern Ocean. Over the years, the water action undermined the structure of the wall and eroded the concrete blocks, allowing large volumes of water to travel right through the wall body and exit out on the harbour side of the wall.

A system needed to be found to protect the wall’s integrity for future generations, and our method of injecting engineered structural resin was selected.

The solution

The project design was to deliver Uretek resin directly into the face of the wall, penetrate the joints and seal the wall.

The Result

An initial trial was conducted and proved to be successful. Council set up a crane on the wall to have the works done from an elevated basket, which was instrumental in achieving a good outcome for the works, as well as for the safety of our Operations people.

A 50mm floating containment boom was used to prevent the escape of any cured Uretek resin. This was a difficult and challenging job, and eventually it was decided to deliver the material through the back of the first row of blocks and drill through the top block to locate the voids.

Drilling was tough going and very abrasive on the drill bits, due to the blue ballast rock, and the presence of an old railway line running through the site, but eventually the Operations Crew succeeded in detecting and filling all the significant voids.

The sea wall works to prevent further erosions were successful and any excess cured material liberated during injection was easily contained by the use of a floating boom, and recovered from the ocean.

Resources

Project Resources & Downloads

Integrity Of Heritage Sea Wall Restored
Next Project

High School Raised and Re-supported

Mainmark

© 2024 The Mainmark group of companies. ‘Mainmark®’, ‘Terefil®’, ‘Terefirm®’ and ‘Teretek®’ are trademarks of the Mainmark group of companies.

Mainmark Ground Engineering Pty Ltd
ABN: 51 606 182 503

ISO 9001
ISO 14001
ISO 45001

Residential

Commercial

Infrastructure

Mining

About Mainmark

Our team

Careers

Contact

Technologies

Media & Press

News

Awards

Privacy Policy

Terms and Conditions

Created by Codex

YouTube
Facebook
LinkedIn
Instagram