DAM OF SOIL MATERIALS Russian patent published in 2013 - IPC E02B7/06 

FIELD: construction.

SUBSTANCE: dam of soil materials, both frozen and thawed types, is erected on a frozen base. The soil dam comprises an anti-filtration core 1, upper and lower thrust prisms 2, transition zones 3 and 4 between the core 1 and thrust prisms 2. The core 1 of the dam consists of a low-filtering cohesive soil. Thrust prisms 2 are made of stone rip-rap. The slope of the lower thrust prism is covered with a layer of fine stone 5. At the same time in the lower thrust prism with the help of an air impermeable screen 6 there is an area of seasonal active convection 7. The screen 6 is made of thin rubberised fabric or cemented stone. The area of seasonal-active convection 7 is equipped with a hangar 8 and a detachable air impermeable cover 9 arranged on the lower slope. The hangar 8 is located on the dam ridge.

EFFECT: permanent temperature mode in a core and in a transition area at the side of a lower reach, when operating both thawed and frozen soil dam under severe temperature conditions of a northern construction climate area.

6 dwg