Cutting Frozen Ground with Disc Saws.

The largest commercially available disc saws (7 ft diameter) were tested in frozen ground. Cutting performance was reasonably attractive, specific energy consumption was acceptable, but cutter durability in frozen gravel was judged to be totally inadequate. A new cutter system was developed for the...

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Bibliographic Details
Main Author: Mellor,Malcolm
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H
Format: Text
Language:English
Published: 1975
Subjects:
Soil Mechanics
Snow
Ice and Permafrost
Machinery and Tools
*SOILS
*CUTTING
*SAWS
PERFORMANCE(ENGINEERING)
GRAVEL
COSTS
FREEZING
EXCAVATION
WEAR RESISTANCE
CUTTING TOOLS
SILT
*Frozen soils
Disc saws
Ice
permafrost
Online Access:http://www.dtic.mil/docs/citations/ADA012114
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA012114
Description
Summary:The largest commercially available disc saws (7 ft diameter) were tested in frozen ground. Cutting performance was reasonably attractive, specific energy consumption was acceptable, but cutter durability in frozen gravel was judged to be totally inadequate. A new cutter system was developed for the saw that provided best general capabilities, and a dramatic improvement in cutter durability was achieved. The modified saw cut slots 3.7 in. wide and 30 to 34 in. deep at rates up to 6.6 ft/min in coarse frozen gravel and up to 16.3 ft/min in frozen silt.

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