Hand Tunneling - Bradshaw Construction Corporation

Their equipment looks well ... an expansive fleet of heavy and underground construction equipment. ... of tunnel supports should I use? Hand Tunneling ...

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A History of BART: The Project Begins | bart.gov

Previously: The Concept is Born BART construction officially began on June 19, 1964, with President Lyndon Johnson presiding over the ground-breaking ceremonies for the 4.4-mile Diablo Test Track between Concord and Walnut Creek in Contra Costa County.

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Underground tunneling equipment - Underground Secrets in

Earth boring equipment can build underground tunnels without disturbing the surface above.

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About Gophers - Tunnel Fill Review

Pocket Gopher are burrowing pests that can be controlled with Tunnel Fill by using the expanding material to flush gophers out of their burrows.

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Fixing a massive NYC plumbing leak, 55 stories underground

Image Gallery 2 PHOTOS Hard-hat workers are toiling deep underground, 55 stories beneath the Hudson River, to eliminate gushing leaks in an aging tunnel that carries half the city's water supply over 85 miles from Catskill Mountain reservoirs.

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DEEP UNDERGROUND MILITARY BASES IN AMERICA

Unknown to most Americans is a dark secret, and it's right under our noses. It's the reality of the existence of DEEP UNDERGROUND MILITARY BASES.

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Alaskan Way Viaduct - Tunneling

The SR 99 Alaskan Way Viaduct, an elevated concrete structure built in the 1950s and vulnerable to earthquakes, is being replaced with a 1.7-mile tunnel running beneath downtown Seattle.

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Dulce & Other Underground Bases and Tunnels

by William Hamilton III. from ThinkAboutIt Website Does a strange world exist beneath our feet? Strange legends have persisted for centuries about the mysterious cavern world and the equally strange beings who inhabit it.

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Akkerman - Official Site

GUIDED BORING, MICROTUNNELING, PIPE JACKING & TUNNELING SOLUTIONS. Established in 1973, Akkerman develops, manufactures and supports quality pipe jacking and tunneling equipment that accurately installs a variety of underground infrastructure.

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Bertha (tunnel boring machine)

Bertha was designed and manufactured by Hitachi Zosen Sakai Works of Osaka, Japan, and is the world's largest earth pressure balance tunnel boring machine, at a cutterhead diameter of 57.5 feet (17.5 m) across.

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TUNNELING EQUIPMENT AND SERVICES - MEKTUNNEL

Tunneling equipment, underground mining equipment and services specialist. Roadheader, TBM, New and used tunneling equipment for sale.

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Tunnelbuilder - Official Site

tunnelbuilder.com is the leading marketing resource for the world's tunnelling industry providing the latest project news on the world's tunnels

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Project Camelot | Underground bases and tunnels

The first section of this page was written by Phil Schneider:. Photo of United States Air Force tunnel boring machine at Little Skull Mountain, Nevada, USA, December 1982.

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HDD Willco – Underground Utility Construction Services

Modern Equipment Fleet– having dependable equipment is key to success on the job site and maintaining timelines.. Track Record Of Success– with over 900 miles of pipe & casings installed we have the experience to complete your job.

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Products | Roadheaders, Tunneling, Mining, and More

Roadheaders Antraquip roadheaders are designed for tunnel excavation and underground mining applications in soft to medium hard rock. Antraquip machines are available in sizes ranging from 12t-85t.

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US Underground Bases - Anomalies Unlimited

http://www.nwi.org/Maps/LandChart.html . Much of the US is honeycombed with naturally occurring caves and caves systems, sinkholes and abandoned mines - especially in the West - so it's not all that far-fetched when you think about it.

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Meet our giant tunnelling machines - Crossrail

Digging the new tunnels was a 24-hour a day job, 7 days a week. Crossrail used eight tunnel boring machines (TBMs) to construct the new rail tunnels under London. The giant machines carefully weaved through the capital's congested sub-terrain, snaking bet

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Underground Construction (Tunneling)

Underground Construction (Tunneling) U.S. Department of Labor Elaine L. Chao, Secretary Occupational Safety and Health Administration John …

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CREG | Home

Welcome to CREG TBM Germany GmbH - Subsidiary of CREG China. CREG - China Railway Engineering Equipment Group Co., LTD. in the center of China, as a TBM supplier for the challenging tunneling work in underground projects, CREG provide TBMs, tunneling tech

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Terra Solutions - The Trenchless Experts | UK & Ireland

Terra Solutions are leading UK trenchless contractors specialising in ; pipejacking, tunnelling, relining, shafts, augerboring and directional drilling

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