earth pressure balance-tunnel boring machine

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• Earth pressure balance — Earth pressure balance, or EPB, is a mechanised tunneling method in which spoil is admitted into the tunnel boring machine (TBM) via a screw conveyor (cochlea) arrangement which allows the pressure at the face of the TBM to remain balanced… …   Wikipedia

• Tunnel boring machine — A tunnel boring machine that was used at Yucca Mountain nuclear waste repository A tunnel boring machine (TBM) also known as a mole , is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strata.… …   Wikipedia

• Tunnel — This article is about underground passages. For other uses, see Tunnel (disambiguation). Underground tunnel for heatpipes between Rigshospitalet and Amagerværket in Denmark …   Wikipedia

• Channel Tunnel — Map of the Channel Tunnel Overview Location English Channel (Strait of Dover) Coordinates Folkestone …   Wikipedia

• Architecture and Civil Engineering — ▪ 2009 Introduction Architecture       For Notable Civil Engineering Projects in work or completed in 2008, see Table (Notable Civil Engineering Projects (in work or completed, 2008)).        Beijing was the centre of the world of architecture… …   Universalium

• Gautrain — Infobox Rail companies logo filename =Gautrain Logo.jpg image filename = widthpx = franchise = Not subject to franchising nameforarea =stations regions =Johannesburg Park Station OR Tambo International Airport Pretoria secregions =Centurion,… …   Wikipedia

• Metro Tunneling Group — Delhi MRTS Info Locale Delhi, India Transit type Rapid transit Number of lines 3 Number of stations 2 …   Wikipedia

• Mott, Hay and Anderson — Former type Partnership Industry Consultancy Fate Merged with Sir M. MacDonald Partners Successor Mott MacDonald Founded 1902 …   Wikipedia

• Tunnelling shield — A tunnelling shield is a protective structure used in the excavation of tunnels through soil that is too soft or fluid to remain stable during the time it takes to line the tunnel with a support structure of concrete, cast iron or steel. In… …   Wikipedia

• EPB — may refer to:* Electronic pollbook, a tool to review and/or process voter information * Electro pneumatic brake, a brake system on British trains * Earth Pressure Balance, see Tunnel boring machine * * Ejército Popular Boricua , see Boricua… …   Wikipedia

• Russia — /rush euh/, n. 1. Also called Russian Empire. Russian, Rossiya. a former empire in E Europe and N and W Asia: overthrown by the Russian Revolution 1917. Cap.: St. Petersburg (1703 1917). 2. See Union of Soviet Socialist Republics. 3. See Russian… …   Universalium