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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Saurabh 1 Best Answer
59) It has to be grouting. Grouting is particularly used for filling voids or gaps(cavities) in rock or soils. There are various materials required for grouting and based on this they are subdivided. It involves mixture of cement, sand or water mainly to fill the gaps. Rock bolting is used for stabilization of rock excavations and used widely in tunnels amd road cut. 60) This one would be adit. Adit is basically a horizontal opening giving access to makn tunnel. See figure below to have clear idea about the various terminology in mining.