| contributor author | Jonathan N. | |
| contributor author | Honeycutt | |
| contributor author | Steven E. | |
| contributor author | Kiser | |
| contributor author | J. Brian | |
| contributor author | Anderson | |
| date accessioned | 2017-05-08T21:48:13Z | |
| date available | 2017-05-08T21:48:13Z | |
| date copyright | January 2014 | |
| date issued | 2014 | |
| identifier other | %28asce%29gt%2E1943-5606%2E0001010.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/62810 | |
| description abstract | This study examined the energy transfer ratio (ETR) of Central Mine Equipment (CME) automatic standard penetration test (SPT) hammers utilizing a large database of SPT energy measurements. The database consisted of energy measurements from 17,825 SPT hammer blows obtained from 33 CME automatic hammers over a 5-year period, many of which were tested multiple times. The average ETR for all 17,825 CME automatic hammer blows in the database was 82.9% with a COV of | |
| publisher | American Society of Civil Engineers | |
| title | Database Evaluation of Energy Transfer for Central Mine Equipment Automatic Hammer Standard Penetration Tests | |
| type | Journal Paper | |
| journal volume | 140 | |
| journal issue | 1 | |
| journal title | Journal of Geotechnical and Geoenvironmental Engineering | |
| identifier doi | 10.1061/(ASCE)GT.1943-5606.0000988 | |
| tree | Journal of Geotechnical and Geoenvironmental Engineering:;2014:;Volume ( 140 ):;issue: 001 | |
| contenttype | Fulltext | |
