Please use this identifier to cite or link to this item:
https://hdl.handle.net/11681/11674| Title: | Digging frozen ground with a ripper bucket |
| Authors: | Sellmann, P. V. (Paul V.) Brockett, Bruce E. |
| Keywords: | Backhoe ripper Cold regions Construction Excavation Excavating frozen ground Frozen ground Frozen soils Permafrost |
| Publisher: | Cold Regions Research and Engineering Laboratory (U.S.) Engineer Research and Development Center (U.S.) |
| Series/Report no.: | Special report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 92-15. |
| Description: | Special Report 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. |
| Rights: | Approved for public release; distribution is unlimited. |
| URI: | http://hdl.handle.net/11681/11674 |
| Appears in Collections: | Special Report |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| SR-92-15.pdf | 1.8 MB | Adobe PDF |  View/Open |