Please use this identifier to cite or link to this item:
https://hdl.handle.net/11681/11674
Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Sellmann, P. V. (Paul V.) | - |
dc.contributor.author | Brockett, Bruce E. | - |
dc.date.accessioned | 2016-06-20T14:22:12Z | - |
dc.date.available | 2016-06-20T14:22:12Z | - |
dc.date.issued | 1992-06 | - |
dc.identifier.uri | http://hdl.handle.net/11681/11674 | - |
dc.description | Special Report | - |
dc.description | Abstract: To improve the digging capability of small excavators and backhoes in hard and frozen ground, a bucket of special design was selected from among a variety of attachments. This bucket cuts and rips the frozen ground, as lip teeth and a set of staggered teeth attached to the back of the bucket move through an arc during bucket rotation. Digging observations were made using a small mini-excavator and an Army tractor (SEE) with a rear-mounted backhoe. Frozen ground was excavated at several sites under impossible conditions for a conventional bucket. A large variation in excavation rates (3 to 30 yd^3/hr [2.3 to 23 m^3/hr]) was observed, depending on material type, frost thickness, sharpness of the cutters and operator experience. | - |
dc.publisher | Cold Regions Research and Engineering Laboratory (U.S.) | - |
dc.publisher | Engineer Research and Development Center (U.S.) | - |
dc.relation | http://acwc.sdp.sirsi.net/client/en_US/search/asset/1025040 | - |
dc.relation.ispartofseries | Special report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 92-15. | - |
dc.rights | Approved for public release; distribution is unlimited. | - |
dc.source | This Digital Resource was created from scans of the Print Resource | - |
dc.subject | Backhoe ripper | - |
dc.subject | Cold regions | - |
dc.subject | Construction | - |
dc.subject | Excavation | - |
dc.subject | Excavating frozen ground | - |
dc.subject | Frozen ground | - |
dc.subject | Frozen soils | - |
dc.subject | Permafrost | - |
dc.title | Digging frozen ground with a ripper bucket | - |
dc.type | Report | en_US |
Appears in Collections: | Special Report |
Files in This Item:
File | Description | Size | Format | |
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SR-92-15.pdf | 1.8 MB | Adobe PDF | View/Open |