rock mass

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• rock mass — storymė statusas T sritis ekologija ir aplinkotyra apibrėžtis Keli panašūs pagal kilmę ir struktūrą geologiniai žemės sluoksniai, sugulę vienas ant kito (pvz., ledynmečio sąnašų storymė). atitikmenys: angl. rock mass; series; strata vok. Serie, f …   Ekologijos terminų aiškinamasis žodynas

• Rock mass classification — In geotechnical engineering, the first major rock mass classification system was proposed about 60 years ago for tunnelling with steel support. Later classification systems were developed for non steel support underground excavation, slope and… …   Wikipedia

• Rock Mass Rating system — The Rock Mass Rating (RMR) system is a geomechanical classification system for rocks, developed by T.Z. Bieniawski between 1972 and 1973. Definition The following six parameters are used to classify a rock mass using the RMR system #Uniaxial… …   Wikipedia

• Mining rock mass rating — Laubscher developed the Mining Rock Mass Rating (MRMR)[1][2][3][4][5] system by modifying the Rock Mass Rating (RMR) system of Bieniawsk …   Wikipedia

• Rock Quality Designation — (RQD) was developed in 1964 by D. U. Deere. It is based on measuring core recovery percentage which incorporates only pieces that are greater than 100 mm in length. In this respect pieces of core that are not hard and sound should not be counted… …   Wikipedia

• Rock Structure Rating — (RSR) is a quantitative method for describing quality of a rock mass and then appropriate ground support. [cite book last = Bieniawski first = Z. T. authorlink = Z. T. Bieniawski title = Engineering Rock Mass Classifications publisher = Wiley… …   Wikipedia

• Rock microstructure — includes the texture of a rock and the small scale rock structures. The words texture and microstructure are interchangeable, with the latter preferred in modern geological literature. However, texture is still acceptable because it is a useful… …   Wikipedia

• Rock bolt — A rock bolt is a long anchor bolt, for stabilizing rock excavations, which may be tunnels or rock cuts. It transfers load from the unstable exterior, to the confined (and much stronger) interior of the rock mass. Rock bolts were first used in… …   Wikipedia

• rock spread —    The mass movement process, associated sediments (rock spread deposit), or resultant landform characterized by a very rapid type of spread dominated by lateral movement in a rock mass resulting from liquefaction or plastic flow of underlying… …   Glossary of landform and geologic terms

• Mass wasting — at Palo Duro Canyon, West Texas (2002) …   Wikipedia

• Mass Romantic — Studio album by The New Pornographers Released November 21, 2000 …   Wikipedia