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Highway-Railway At-Grade Crossing Structures: Trackbed and Surface Pressure Measurements and Assessments.
| 题名： | Highway-Railway At-Grade Crossing Structures: Trackbed and Surface Pressure Measurements and Assessments. |
| 关键词： | measurement；pressure；structure；grade；surface；track；assess；ssme；ross；loading |
| 摘要： | Techniques are described for installing instrumentation within highway/railway crossings - to measure vertical pressures under moving highway and railway loadings - using earth pressure cells. Also, techniques are described for installing instrumentation between rail base/tie plate interfaces - to measure vertical pressures under moving railway loadings - using pressure sensitive ink sensors. In addition, the sensors were used to measure the surface pressures imparted by highway vehicles on crossing surfaces. Data are presented for several crossings including a wide variety of conditions and loading intensities. The data serve to quantify pressure gradients within highway/railway crossings for application to structural design analyses. |
| 报告类型： | 科技报告 |
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