Feb 12, 2018
In late July 2017, Coleman Microtunnelling, a subsidiary of Bothar Group Australia, successfully completed tunnelling for two power plant cooling water lines in Ghana with a Herrenknecht utility tunnelling machine. The new oil-gas power plant puts the supply of electricity for people and business for the country on the West African Atlantic coast on a more solid foundation.
For the construction of these underground sea water intake and outfall tunnels (inner diameter 2 meters) Coleman Microtunnelling, a subsidiary of Bothar Group Australia, ordered a Herrenknecht AVND2000AB utility tunnelling machine. Herrenknecht specially designed the tunnel boring machine with a salvage module for this special application: In the sea-outfall method pipelines are constructed from the coastline into the open sea.
There, the machine has to be recovered under water. The salvage module prevents the machine and the tunnel from flooding. In addition, for cutter tool changes under high groundwater pressure Herrenknecht equipped the machine (outside diameter 2.5 meters) with a hyperbaric chamber.
Two shafts on the coast served as starting point for the jobsite crew and the Herrenknecht AVND for a total of four pipe jacking drives between May and July 2017. In total, they covered a distance of 2,530 meters. First, the tunnelling specialists of Bothar Group Australia’s subsidiary Coleman Microtunnelling produced two tunnels from the two shafts toward the power plant. These 545 and 520 meter long tunnels run under the mainland and connect the sea-outfalls and the power plant.
Brent Jones, Project Manager for Coleman Microtunnelling, was impressed with the Herrenknecht support in Schwanau and the Herrenknecht service team responsible for the region: "We could not have done it without this extraordinary support. All through Christmas the supply of spare and wear parts went smoothly."
Swen Weiner, Area Sales Executive Middle East for the Herrenknecht Business Unit Utility Tunnelling, is certain: "The good project performance for the long sea-outfall drive in Kpone will be a benchmark for the future in the region." The supply of another Herrenknecht machine to the Bothar Group for a next sea-outfall drive in Ghana followed almost seamlessly.
Machine type: AVND2000AB
Feb 22, 2018
Precision Aerial Compliance Solutions, LLC in partnership with The Woodlands Joint Powers Agency is providing drone LiDAR surveying for portions of The Woodlands drainage system in response to Hurricane Harvey.
Feb 21, 2018
The 2018 State of the Union addressed ways that companies like Aqua America (Aqua) can play a role in solving the United States’ crumbling infrastructure challenges. Aqua’s chairman and CEO confirmed today the company is prepared and ready to continue ...
Feb 20, 2018
Beth Matthews has been promoted to Director of Engineering for Illinois American Water and Iowa American Water. In her new role, Matthews will manage and coordinate capital investment projects and engineering activities in both states.
Feb 19, 2018
Registrations are available for the Trenchless Technology Centre’s (TTC) second Annual Utility Investigation School ‘Geophysics for subsurface utility engineering professionals’, taking place at Louisiana Tech University from 26 February to 2 March 2018.
Feb 16, 2018
Leading water/wastewater control systems integrator Huffman Engineering, Inc. attended Colorado Rural Water Association’s 37th annual conference and exhibition in Denver, CO February 12-15, 2018.
Feb 15, 2018
Water-first IoT platform also adds notable campuses and REITs to growing portfolio.
Feb 14, 2018
We all want simplicity, but sewers fail in complicated ways.
Feb 13, 2018
The 'U.S. Plastic Pipe And Pipe Fitting Market - Analysis And Forecast to 2025' report has been added to ResearchAndMarkets.com's offering.
Feb 09, 2018
Fluence Corporation Limited announced that it has been awarded Frost & Sullivan’s 2018 Global Company of the Year Award for decentralized water and wastewater treatment.
Feb 08, 2018
Material supplier to showcase products and construction methods proven to provide high hydraulic conductivity sealing and minimize erosion along pipelines.
Feb 07, 2018
Intertek, a leading Total Quality Assurance provider to industries worldwide, is pleased to unveil a new pipeline quality verification solution, Intertek PipeAware, offering pipeline owners digital access to pipeline integrity data which is vital for assurance and compliance purposes.
Feb 06, 2018
McLaughlin announces the addition of Tim Ross, regional sales manager for its East Coast territory. In his new role, Ross will provide sales support and expert advice for McLaughlin equipment dealers and contractors throughout the region.