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|Title:||Review of frozen ground excavation methods|
|Authors:||North Carolina State College.|
McCullough, Charles R.
Frozen ground excavation
|Publisher:||U.S. Army Snow, Ice, and Permafrost Research Establishment.|
Engineer Research and Development Center (U.S.)
|Series/Report no.:||SIPRE report ; 51.|
Summary: Present methods of frozen ground excavation include thawing prior to excavation by means of solar heat, steam jets, water and electric needles, valve-less pulsejet engines, and hydraulic methods as well as fracturing by hand, with saws, drop and pneumatic hammers, and cutter and scraper blades. The use of explosives for excavating frozen ground is not included in the scope of this report. Evaluation on the basis of a literature survey indicates that modification of bulldozers to permit installation of pneumatic hammers horizontally along the base of the blade shows considerable promise. The use of alternate cutter and scraper blades for trench excavation has proved satisfactory, and drop hammers are suitable for enlarging existing excavations. Sawing frozen ground has not yielded satisfactory results. The potentiality of resonant sound waves for loosening frozen ground should be studied.
|Appears in Collections:||Technical Report|
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|SIPRE-Technical-Report-51.pdf||1.11 MB||Adobe PDF|