The company's main products include:tunnel ventilation system,mining machinery, supporting equipment, safety drills and other three major categories of dozens of varieties. All of our products can be used for a variety of applications such as rock excavation, trenching, demolition and concrete and underwater cutting, tunneling and scaling. Provide full equipment and services for the comprehensive mechanized mining: boring machines, shearers, scraper conveyors. Customized product designs for roadheaders, supports, shearers, and scraper conveyors for different geological conditions.

  • Ch. 6: Ventilation and Cooling of Shelters - Nuclear War ...

    Ch. 6: Ventilation and Cooling of Shelters CRITICA IMPORTANC If high-protection-factor shelters or most other shelters that lack adequate forced ventilation were fully occupied for several days in warm or hot weather, STOPPI O RESTRICTI

  • 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

  • Alaskan Way Viaduct - Home

    Now crews are installing and testing the tunnel's operational and safety systems. It's a big job. Inside the tunnel there are: More than 300 cameras to monitor traffic and security at all times as part of an incident-detection system.

  • SIU Tunnel System - Infiltration

    Southern Illinois University at Carbondale. Steam Tunnels, Stories, Memories, and More . Disclaimer: As a proud SIU graduate I have posted this web page for entertainment and historical purposes.

  • Glossary - Herrenknecht AG

    Full Range Tunnelling Project-specific solutions – from cutting wheel to the separation plant. Herrenknecht ties up a complete package for you.

  • SIU Tunnel System - Infiltration

    Southern Illinois University at Carbondale. Steam Tunnels, Stories, Memories, and More . Disclaimer: As a proud SIU graduate I have posted this web page for entertainment and historical purposes.

  • Tunnels and underground excavations | engineering ...

    Tunnels and underground excavations: Tunnels and underground excavations, horizontal underground passageway produced by excavation or occasionally by nature's action in dissolving a soluble rock, such as limestone.

  • U.S.-Mexico drug tunnel spanned 800 yards - CNN

    Apr 19, 2016 · Story highlights. Six people have been charged with drug trafficking ; The tunnel features ventilation systems, lights and even a large elevator; It leads to a closet in a Tijuana home

  • Fort McHenry Tunnel - Roads to the Future

    The Fort McHenry Tunnel is the 7,200-foot-long 8-lane tunnel complex that carries Interstate I-95 under Baltimore Harbor, in Baltimore, Maryland.

  • Tunnel Ventilation Fans

    Fans for Tunnel ventilation applications including Life Safety Fans, reversible jet fans,

  • Tunnels and underground excavations | engineering ...

    Tunnels and underground excavations: Tunnels and underground excavations, horizontal underground passageway produced by excavation or occasionally by nature's action in dissolving a soluble rock, such as limestone.

  • Production of Tomatoes within a High Tunnel - HighTunnels.org

    I. What is a high tunnel? A high tunnel is a solar heated, manually vented, plastic-covered cold frame that is used to lengthen the traditional growing season for many horticulture crops.

  • Ch. 6: Ventilation and Cooling of Shelters - Nuclear War ...

    Ch. 6: Ventilation and Cooling of Shelters CRITICA IMPORTANC If high-protection-factor shelters or most other shelters that lack adequate forced ventilation were fully occupied for several days in warm or hot weather, STOPPI O RESTRICTI

  • Fort McHenry Tunnel - Roads to the Future

    The Fort McHenry Tunnel is the 7,200-foot-long 8-lane tunnel complex that carries Interstate I-95 under Baltimore Harbor, in Baltimore, Maryland.

  • Tunnel - Wikipedia

    A tunnel is an underground passageway, dug through the surrounding soil/earth/rock and enclosed except for entrance and exit, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube construction techniques rather than traditional tunnel boring methods.

  • Production of Tomatoes within a High Tunnel - HighTunnels.org

    I. What is a high tunnel? A high tunnel is a solar heated, manually vented, plastic-covered cold frame that is used to lengthen the traditional growing season for many horticulture crops.

  • Chicago Tunnel Company - Wikipedia

    The Chicago Tunnel Company built a 2 ft (610 mm) narrow gauge railway freight tunnel network under the downtown of the city of Chicago. This was regulated by the Interstate Commerce Commission as an interurban even though it operated entirely under central Chicago, did not carry passengers, and was entirely underground.

  • HighTunnels.org

    The [hightunnels] listserv comprises over 850 members, most of which are growers using high tunnels. The listserv is a great place to learn what growers are doing with high tunnels, what crops and varieties do best, and what practices have been successful on local farms.

  • Bunker System

    1950s/1960s postcard views taken inside Hitler's Berghof tunnel system - on the left, a chamber that was used to store paintings and other artwork.

  • Fort McHenry Tunnel - Roads to the Future

    The Fort McHenry Tunnel is the 7,200-foot-long 8-lane tunnel complex that carries Interstate I-95 under Baltimore Harbor, in Baltimore, Maryland.

  • Gusen/Bergkristall - Third Reich in Ruins

    Gusen Concentration Camp / Project B-8 "Bergkristall" Tunnel System . Two underground tunnel projects were started in the area of St. Georgen, east of Linz.

  • Alaskan Way Viaduct - Home

    Now crews are installing and testing the tunnel's operational and safety systems. It's a big job. Inside the tunnel there are: More than 300 cameras to monitor traffic and security at all times as part of an incident-detection system.

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