Not displaying correctly? View in your browser
Click on the logos to visit the websites
CREG Tsurumi Pumps
DSI Underground AECOM USA
Bekaert BabEng
Herrenknecht
Colorado School of Mines
www.TunnelTalk.com keeping you informed
New Editorial Content
- UK: Underground routes to remove cable pylons
- UK: First TBMs for HS2 London drives ordered
- Obituary: Jeff Farrow, Thames Water engineer, UK
- Australia: Perth sinkhole repaired with iron lining
Recent reporting
- UK: Hinkley Point cooling water drives
- UK: Tideway TBM drives and inner lining details
- Colombia: Hydro diversion disaster investigation
- Career Moves: Louis Falco makes a change
News from the world media services
2.59m i.d. wedge block lining in London Clay 2.59m i.d. wedge block lining in London Clay
Join the Alert Forward to Colleagues
From the Editor's Desk - 15 Oct 2020
Non-bolted, non-gasketed, single-pass wedge block concrete segmental linings were the standard for 2m-3m diameter water infrastructure in London Clay in the 1980s and 1990s. They resulted in high advance rates of up to 500m in a five-day week. Would they be permitted today under the street of London or accepted as an altenative to bolted and gasketed segmental linings, often now preferred or specified as part of risk assessment processes.

Share your views

From us, to you, to them - Direct by Design
Alert Delist Advertising Information
Click on the logos to visit the websites
Gall Zeidler VMT
Procurement
For advertising details
contact the Advertising Dept
Tel: +44 208 816 8677
Tel: +1 602 399 7184
RECENT CONTENT PUBLISHED ON TUNNELTALK
Most recent reporting
- Hydropower: Ituango diversion collapse review
- Nuclear power: Hinkley Point cooling water drives
- Feedback: Geotechnical description discrepancies
- Products: Digger shield delivered in six weeks
- Products: Torque protection for cutterheads
- UK: Tideway TBM drives and inner lining details
- Italy: Double breakthrough for Genoa-Milan rail
- Russia: Nizhny Novgorod Metro expansion plans
- India: Gripper TBM heading to Mumbai
- Nepal: Double shield TBM project in procurement
TBMs in difficult ground
- Keep TBM moving against the odds
- Rebuilt TBMs, as good as new?
- Clawing success at Arrowhead
- TBM rescue for Tapovan
- TBM conquers Peruvian Andes
- Flexibility for battling poor geology
- TBM success at Kishanganga
- TBM equipped for high water pressure
- Laos early finish despite challenges
- TBMs through on long hydro drive in Ecuador
News Briefs
- Serbia strengthens business with China
- Penang to decide on sea crossing
- Options for Blue Mountains bypass
- India opens strategic Himalayan road link
- Breakthrough on Jakarta-Bandung railway line
- Great Lakes oil pipeline concerns
- Vancouver MRT crossing options
- Solutions for Scotland landslide-plagued road
- HS2 option to save time and money
- Erionite concern in New Zealand
VIDEO REPORTING: Long distance excavation experiences

Follo Line TBMs

Follo Line breakthroughs

Olmos rock bursting

Kishanganga headrace TBM

San Vicente breakthrough

Arrowhead completed

Seymour-Capilano drives

Lyon-Turin rail link

UPCOMING CONFERENCES AND EXHIBITIONS