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https://hdl.handle.net/11681/12660Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor | United States. Bureau of Mines | - |
| dc.contributor | Spokane Mining Research Center (U.S.) | - |
| dc.contributor.author | Townsend, Frank C. | - |
| dc.contributor.author | Goodings, Deborah J. | - |
| dc.contributor.author | Schofield, A. N. (Andrew Noel), 1930- | - |
| dc.contributor.author | Al-Hussaini, Mosaid M. | - |
| dc.date.accessioned | 2016-07-06T14:27:04Z | - |
| dc.date.available | 2016-07-06T14:27:04Z | - |
| dc.date.issued | 1979-09 | - |
| dc.identifier.uri | http://hdl.handle.net/11681/12660 | - |
| dc.description | Technical Report | - |
| dc.description | Abstract: Centrifugal model embankments with varying geometries and materials were constructed of coal waste material, accelerated from 100 to 120 times earth' s gravity, and subjected to various throughflow rates until failure occurred. Complementary laboratory tests were performed on the waste materials to obtain strength and permeability parameters for analytical calculations to predict observed centrifugal model behavior. Failures in the form of deep-seated failure, or erosion and sediment transport or a combination of both, occurred in model embankments with 1V : 1-1/2H and 1V : 2H slopes when the phreatic surface due to seepage exited on the downstream slope. Positive seepage control, i.e., a toe drain successfully prevented sloughing and failures. Slope stability analyses agreed well, albeit conservatively, with observed model performance. Factors of safety ranged from 0.7 to 1.02 at the instant of failure for models with retrogressing slips as compared with 1.05 to 1.7 for stable embankments. These models verified existing criteria of a minimum safety factor of 1.3 and the necessity of positive seepage control. | - |
| dc.publisher | Geotechnical Laboratory (U.S.) | - |
| dc.publisher | Engineer Research and Development Center (U.S.) | - |
| dc.relation | http://acwc.sdp.sirsi.net/client/en_US/search/asset/1015780 | - |
| dc.relation.ispartofseries | Technical report (U.S. Army Engineer Waterways Experiment Station) ; GL-79-18. | - |
| dc.rights | Approved for public release; distribution is unlimited. | - |
| dc.source | This Digital Resource was created from scans of the Print Resource | - |
| dc.subject | Centrifugal models | - |
| dc.subject | Seepage | - |
| dc.subject | Coal mines | - |
| dc.subject | Coal waste | - |
| dc.subject | Shear strength | - |
| dc.subject | Embankments | - |
| dc.subject | Erosion | - |
| dc.subject | Failure | - |
| dc.subject | Stability | - |
| dc.title | Centrifugal model analysis of coal waste embankment stability | - |
| dc.type | Report | en_US |
| Appears in Collections: | Technical Report | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| TR-GL-79-18.pdf | 10.4 MB | Adobe PDF |  View/Open |