shotcrete
51mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… …
52tunnel — tunneler; esp. Brit., tunneller, n. tunnellike, adj. /tun l/, n., v., tunneled, tunneling or (esp. Brit.) tunnelled, tunnelling. n. 1. an underground passage. 2. a passageway, as for trains or automobiles, through or under an obstruction, as a… …
53shell structure — In building construction, a thin, curved plate structure shaped to transmit applied forces by compressive, tensile, and shear stresses that act in the plane of the surface. They are usually constructed of concrete reinforced with steel mesh (see… …
54Engineering Projects — ▪ 1995 Introduction BRIDGES Notable Engineering Projects(For Notable Engineering Projects in work, see Table (Notable Engineering Projects).) As the decade of the 1990s reached its midpoint, the limits to bridge design were being… …
55gunite — noun /ˈɡʌnaɪt/ A form of shotcrete in which a dry cementitious mixture is blown through a hose to the nozzle, with water injected only at the point of application …
56Chabrouh Dam — The Chabrouh Dam is a dam in Lebanon, 40 kilometers northeast of Beirut and was inaugurated in 2007. The dam has a height of 63 metres. The reservoir has a capacity of some 8 million cubic meters and is some 1300 metres in length. The dam is… …
57Cortez Gold Mine — Cortez Gold Mine …
58Mining in the Upper Harz — The headframe of the Emperor William Shaft in Clausthal is one of the oldest surviving winding towers in Germany …
59Mt. Lebanon Tunnel — South end Overview Line 42 South Hills Village Location Allegheny County, Pennsylvania Status op …
60Mponeng — is a gold mine in South Africa s North West Province. It extends over two miles below the surface,[1] and is considered to be one of the deepest and most substantial gold mines in the world.[2] The trip from the surface to the bottom of the mine… …
