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PAVEMENT STRAINS INDUCED BY SPENT-FUEL TRANSPORTATION TRUCKS.
| 题名： | PAVEMENT STRAINS INDUCED BY SPENT-FUEL TRANSPORTATION TRUCKS. |
| 作者： | Siddharthan-R; Sebaaly-PE; Zafir-Z |
| 关键词： | SPENT-FUEL-CASKS; NUCLEAR-WASTES; HIGHWAY-TRANSPORTATION; TRUCK-PAVEMENT-DAMAGE; MAINTENANCE-COSTS; STRAINS-; PAVEMENT-DISTRESS; AXLE-CONFIGURATION; VEHICLE-SPEED; OVERWEIGHT-LOADS; FATIGUE-TESTS; TRIAXIAL-TESTS; ASPHALT-PAVEMENTS |
| 摘要： | Four types of vehicles are being considered for the transportation of spent-fuel casks to the high-level nuclear waste repository that is to be located in Yucca Mountain, Nevada. The use of a finite-layer moving-load model to compute the pavement strains is described. Pavement strains are required to compare the relative pavement damage caused by each of the spent-fuel trucks and to estimate the increased cost associated with the increase in maintenance and rehabilitation on pavements caused by the spent-fuel trucks. The strain response induced by the spent-fuel trucks for a site near Reno, Nevada, is reported. The asphalt concrete layer and the unbound materials are assumed viscoelastic and elastic, respectively. Pavement material properties were deduced from falling-weight deflectometer testing. The study reveals that the strain response is affected strongly by the axle configuration and by the speed of the vehicle. Increased vehicle speed reduces the pavement strains substantially; longitudinal strains in the asphalt concrete layer decrease by as much as 33% when the speed of the vehicle increases from 30 to 60 km/hr. A substantial compressive strain component is also present when tandem and tridem axle loading are considered. The difference in contribution to pavement distress between the two legal-weight trucks and between the two overweight trucks is minimal. Laboratory fatigue and cyclic triaxial tests are being evaluated to compare the effects of legal-weight and overweight axle loading. |
| 总页数： | Transportation Research Record. 1994. (1448) pp8-15 (12 Fig., 1 Tab., 22 Ref.) |
| 报告类型： | 科技报告 |
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