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New cement-free TBM backfill grout 18 April, 2019
Germany/Austria – MC Bauchemie and Porr have developed a new TBM backfill grout based on a geopolymer that is suitable for use in swelling rock formations. The companies stated that the cement-free filler is sulphate resistant and adequately prevents swelling pressures while providing the usual bedding for securing the tunnel ring.
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Tunnel lift named IPAF product of the year
Wednesday, April 17, 2019 Norway – Hybeko’s Tunnel 3390 Lift was named product of the year at the International Powered Access Federation’s (IPAF) Summit and International Awards for Powered Access (IAPAs) held in Dubai in March. It is an aerial work platform specifically designed for tunnelling and similar construction applications.
TTC issues RFEOI for Relief Line South TBM
Tuesday, April 16, 2019 Canada – The Toronto Transit Commission (TTC) opened an RFI for its Relief Line South Subway Tunnel Boring Machine Supply and Design, closing May 9.
Mining on DigIndy tunnel system more than halfway complete
Tuesday, April 16, 2019 Indiana - Citizens Energy Group’s DigIndy Tunnel System project reached a significant milestone on Wednesday, April 10, when its 20ft- (6m-) diameter TBM completed mining the Lower Pogues Run and White River Tunnels.
Behrman Capital acquires Waterline
Friday, April 12, 2019 Illinois--Waterline Renewal Technologies, provider of engineered products used in the trenchless rehabilitation of wastewater infrastructure for municipal, commercial, industrial and residential applications, has been acquired by private equity investment firm Behrman Capital.
TBM launched for the Bangkok Orange Line
Friday, April 12, 2019 Thailand – A 6.39m diameter Terratec EPB machine was launched last January for the first 23km-long (east) phase of the Mass Rapid Transit Authority of Thailand’s (MRTA) Orange Line Project.
Epiroc buys South African rock reinforcement business
Friday, April 12, 2019 South Africa – Epiroc has completed the acquisition of South African underground rock reinforcement products manufacturer New Concept Mining
Herrenknecht wins Bauma Innovation Award
Friday, April 12, 2019 Germany – Herrenknecht scooped the Bauma Innovation Award for its E-Power Pipe installation method. The award was granted in the ‘machine’ category, and was presented on Sunday.
Sandvik acquires Chinese tools supplier
Friday, April 12, 2019 Finland/China – Sandvik has completed the previously announced acquisition of OSK, a Chinese supplier of solid carbide round tools. OSK will be part of the Seco division in Sandvik Machining Solutions.
Cross River Rail contractors appointed
Thursday, April 04, 2019 Australia – The Queensland Government has announced the major contractors for the Cross River Rail project. The AUD 5.4bn (USD 3.86bn) scheme will see the construction of a 5.9km twin tunnel under the Brisbane River and central business district. Under the current reference design, the diameter is approximately 7m.
BTSYM holds 11th annual conference in London
Thursday, April 04, 2019 Great Britain – The British Tunnelling Society Young Members (BTSYM) held its annual conference in London last month. The event, which took place for the 11th year in a row, aims to provide a platform for young engineers to share their experience and network.

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