naa a22 4500 510756840 CHVBK 20180411083125.0 cr unu---uuuuu 180411e20131101xx s 000 0 eng 10.1007/s12594-013-0191-7 doi (NATIONALLICENCE)springer-10.1007/s12594-013-0191-7 Behnamtalab Ehsan Civil Engineering Group, Department of Engineering, Hakim Sabzevari University, Sabzevar, Iran aut Computational analysis of the experimental physical model: Karstic layer in dam foundation [Elektronische Daten] [Ehsan Behnamtalab] Karstic rocks (soluble rocks) exist in different areas of the world having useful/harmful structural and environmental impacts. One of the useful aspect is availability of rich water resources in some regions. An important defect of this kind of rocks is their low strength against water flows. These rocks usually dissolve in acidic water and as a result abundant caverns are created inside them. The gypsum and salt present in these rocks dissolve even in non-acidic water. Presence of these rocks in different foundations and reservoirs especially in dams could be potentially dangerous and cause enormous problems. If dams are located above soluble rocks like limestone, dolomite or gypsum they are endangered by karstification. Karstification is a dynamic process resulting in voids within the rocks due to dissolution. This dissolution leads to the formation of a pipe system within the sub-surface In the physical modeling, effects of cut-off wall height within gypsum layer were examined and monitored. Then with GeoStudio and Flac software, results of physical modeling are analyzed. In each experiment, cut-off wall height was changed. The result of the experiments indicated that as the gypsum Karst is very weak against water, cut-off wall must continue completely within the gypsum layer, as a complete positive cut-off wall. Geological Society of India, 2013 Solubility nationallicence Gypsum nationallicence Dam nationallicence Cut-off wall nationallicence Karst nationallicence Journal of the Geological Society of India Springer India 82/5(2013-11-01), 583-587 0016-7622 82:5<583 2013 82 12594 https://doi.org/10.1007/s12594-013-0191-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12594-013-0191-7 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Behnamtalab Ehsan Civil Engineering Group, Department of Engineering, Hakim Sabzevari University, Sabzevar, Iran aut NATIONALLICENCE 773 0- Journal of the Geological Society of India Springer India 82/5(2013-11-01), 583-587 0016-7622 82:5<583 2013 82 12594 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer