Cutoff wall
өрц (шороон боомт)
диафрагма
A wall of impervious material usually of concrete, asphaltic concrete, or steel sheet piling constructed in the foundation and abutments to reduce seepage beneath and next to the dam.
Source Guidelines on Instrumentation on Large dams by Central Water Commission Ministry of Water Resources, River Development & Ganga Rejuvenation Government of India, June 2017, p.72Cutoff wall
шпүүнтэн хана
шпунтовая стенка
a low-permeability barrier or wall that that limits flow of groundwater and/or contaminants.
Source John M. Sharp, Jr. 2007 Department of Geological Sciences Jackson School of Geosciences The University of Texas Austin, Texas, USAЗураг