backfill pressure

См. также в других словарях:

• Lateral earth pressure — is the pressure that soil exerts in the horizontal plane. The common applications of lateral earth pressure theory are for the design of ground engineering structures such as retaining walls, basements, tunnels, and to determine the friction on… …   Wikipedia

• tunnels and underground excavations — ▪ engineering Introduction        Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …   Universalium

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• Channel (Chinese medicine) — Channel (zh stp|p=jīngluò|s=经络|t=經絡), also known as meridian, in traditional Chinese medicine, is the common name of vessel (zh stp|s=经脉|t=經脈|p=jīngmài, also known as channel) and collaterals (zh stp|s=络脉|t=絡脈|p=luòmài). It is the path of running …   Wikipedia

• Rankine theory — Rankine s theory, developed in 1857 [Rankine, W. (1857) On the stability of loose earth. Philosophical Transactions of the Royal Society of London, Vol. 147.] , is a stress field solution that predicts active and passive earth pressure. It… …   Wikipedia

• coal mining — Coal was very important in the economic development of Britain. It was used as fuel in the factories built during the Industrial Revolution and continued to be important until the 1980s. The main coalfields are in north east England, the north… …   Universalium

• Tire recycling — is the process of recycling vehicles tires (or tyres) that are no longer suitable for use on vehicles due to wear or irreparable damage (such as punctures). These tires are among the largest and most problematic sources of waste, due to the large …   Wikipedia

• Geotechnical engineering — [ Boston s Big Dig presented geotechnical challenges in an urban environment.] Geotechnical engineering is the branch of civil engineering concerned with the engineering behavior of earth materials. Geotechnical engineering includes investigating …   Wikipedia

• Leak Detection — Pipeline Leak Detection Using Non Destructive Non Invasive Testing Techniques = Most pipelines, regardless of what they contain, are designed with a typical life span of 25 years. When they do begin to fail, they do so slowly beginning with leaks …   Wikipedia

• Tailings — A panorama of Broken Hill, New South Wales, backed by the man made mullock (waste tailings) heaps from the Line of Lode mine (the mullock heaps are the hills that stretch across this image). Tailings, also called mine dumps, slimes, tails, leach… …   Wikipedia

• Underground mining (hard rock) — A three dimensional model of an underground mine with shaft access Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, mainly those containing metals[1] such as ore containing gold …   Wikipedia