Latest Drilling and Tunnelling News 
DavyMarkham acquired by India's Hindustan Dorr Oliver
DavyMarkham has been acquired by India’s leading engineering procurement and construction company, Hindustan Dorr Oliver (HDO) Limited, a subsidiary of IVRCL Infrastructures & Projects Ltd, which is involved in engineered solutions, technologies and EPC installations in liquid-solid separation applications. The acquisition provides HDO with an entry into the Heavy Engineering sector. The firm’s Managing Director, Kevin Parkin, who was named B... [more]
DavyMarkham built cutterheads for tunnel boring machines used on railroad tunnel project in China
Tunnelling plays an increasingly important role in the development of transportation links and renewable energy schemes and China reportedly ranks first in the world, both for the number of tunnels and pace of construction. In bypassing areas of natural beauty, it often has significant ecological benefits; in the Qinling Mountains, when a national highway was rerouted by tunnel, it enabled the plantation of 500 acres of bamboo and the bridging of... [more]
Joint venture to create online analysis tool to help optimise drilling decisions
Decision Analysis, which is a branch of Operations Research, is mathematical tool that can be used to optimise decisions under conditions of risk and uncertainty. In a joint venture between Drillers.com and the Department of Applied Mathematics at the University of Pau in France, a project has been started to create online tools to help optimise drilling decisions. These tools will use Mathcad worksheets coded with Decision Analysis techniques t... [more]
Alternative installation method for drilling vertical boreholes to install collectors for a ground source heat pump
Drilling vertical boreholes into the ground to install collectors for a ground source heat pump (GSHP) usually involves a rotary drilling rig utilising a variety of drilling bits, and water based drilling fluids. Typically a 100mm to 180mm diameter hole is drilled to accommodate U-shaped collectors and both the spoil and drilling fluids emerge from the ground as the drill is advanced to depth. It can be a messy, noisy and time-consuming operation... [more]
Diamond Blade Dealer Provides Better Online Customer Experience
Diamond Blade Dealer has announced the launch of their new website. The re-designed website aims to provide a better customer experience while maintaining low prices. Customers will find it easier than ever to find high quality products at some of the most affordable prices in the industry due to the easier navigation, trouble shooting tips and enhanced product images that have been integrated into the new site. The new Diamond Blade Dealer ... [more]
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Other Drilling and Tunnelling news and reviews
Surgical operation for Coromandel (The New Zealand Herald)
Mt Karangahake presides like a church over the gorge which snakes through the base of the Coromandel Peninsula.
Barkerville Gold to Begin Mining Ore at QR Gold Mine (Marketwire)
VANCOUVER, BRITISH COLUMBIA--(Marketwire - March 3, 2010) - Barkerville Gold Mines Ltd. (TSX VENTURE:BGM)(FRANKFURT:IWUB) ("Barkerville", the "Company") announces that it has been advised by its mining contractor, Procon Mining and Tunnelling Ltd. (Procon), that start-up and dewatering operations are well underway at the West Zone at the Company's QR Gold Mine. Procon also advises that all ...
Barkerville Gold to Begin Mining Ore at QR Gold Mine (CCNMatthews via Yahoo! Finance)
VANCOUVER, BRITISH COLUMBIA-- - Barkerville Gold Mines Ltd. announces that it has been advised by its mining contractor, Procon Mining and Tunnelling Ltd. , that start-up and dewatering operations are well underway at the West Zone at the Company's QR Gold Mine.
IRW-Press: Barkerville Gold: Barkerville Gold To Begin Mining Ore At Qr Gold Mine (OfficialWire)
Barkerville Gold Mines Ltd.
Rio's new program for rapid construction of deep underground mines (Mineweb)
Rio Tinto is expanding its Mine of the Future program to develop new equipment and systems for deep underground mines and has selected three partners to work on the project.
Hard rock slows mining progress (Marlborough Express)
Pike River Coal is a week away from its inaugural export shipment from Lyttelton port, but is still seeing delays in an area of faulted rock ahead of the main coal face in its underground mine.
