00000nam 2200000za 4500 9.866687 CaOODSP 20221107162118 m o d f cr ||||||||||| 190107s1977 onca ob f000 0 eng d 0660009994 (print) CaOODSP eng n-cn--- M38-13/77-29E-PDF M38-14/3-1977-5 Pit slope manual. Supplement 3-5, Sampling and specimen preparation [electronic resource]. Ottawa : CANMET, Energy, Mines and Resources Canada, c1977. 30 p. : ill. CANMET report ; 77-29 Cover title. "This supplement has been prepared as part of the Pit Slope Project of the Mining Research Laboratories, Canada Centre for Mineral and Energy Technology, Energy, Mines and Resources Canada." "Minerals Research Program, Mining Research Laboratories." "Gyenge, M. and Ladanyi, B." Digitized edition from print [produced by Natural Resources Canada]. Includes bibliographical references. "Sampling is influenced by geology and geography of a mine site, and by the requirements of design. Rock samples are usually obtained by coring with diamond drills or occasionally by removing surface blocks. Soil can be sampled by auger or, if undisturbed samples are required, by tube sampler. Undisturbed samples of cohesive soil can also be obtained by cutting blocks of soil from the side or bottom of a trench. Rock specimens for triaxial testing must be carefully ground to produce parallel, flat ends to a close tolerance. Shear box specimens are carefully aligned and then grouted into the shear box. "Undisturbed" soil specimens can be cut from field samples with special tools; however some disturbance is inevitable. Clay specimens must be protected from drying"--Abstract. Slopes (Soil mechanics) Strip mining Gyenge, M. Ladanyi, B., 1922- Canada. Energy, Mines and Resources Canada. Canada Centre for Mineral and Energy Technology. Minerals Research Program (Canada) Mining Research Laboratories (Canada) CANMET report ; 77-29. (CaOODSP)9.852792 PDF 10.52 MB https://publications.gc.ca/collections/collection_2019/rncan-nrcan/m38-13/M38-13-77-29-eng.pdf 307118