Accession Number : AD0648510

Title :   DIGGING FROZEN GROUND,

Corporate Author : SNOW ICE AND PERMAFROST RESEARCH ESTABLISHMENT WILMETTE ILL

Personal Author(s) : Sergeev,A. I.

Report Date : JAN 1961

Pagination or Media Count : 7

Abstract : The following methods of trench construction in frozen ground were investigated: (1) utilization of a disk saw in both vertical and horizontal positions; (2) utilization of drop hammers as pressure cutters and of wedges to dispose of the blocks produced; (3) cutting narrow channels in the frozen ground 3-4 cm wide using a 12-bladed cutter; (4) utilization of a modified trench excavator with a chain conveyor. The first two methods were judged useless. The third method required minimum power, but a high rate of blade damage and wear rendered it impracticable. The fourth method was also hampered by a high rate of blade wear and, in addition, had a high power consumption. Possible schemes for overcoming the blade-wear problem are discussed.

Descriptors :   (*EARTH HANDLING EQUIPMENT, EFFECTIVENESS), SOILS, FREEZING, ICE, CUTTING TOOLS, POWER, WEAR RESISTANCE, USSR

Subject Categories : Snow, Ice and Permafrost
      Construction Equipment, Materials & Supplies

Distribution Statement : APPROVED FOR PUBLIC RELEASE