文章基本信息

标题：Measuring the Bearing Capacity of Forest Roads with an Improved Benkelman Beam Apparatus
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作者：Gergely MARKó ; Péter PRIMUSZ ; József PéTERFALVI 等
期刊名称：Acta Silvatica et Lignaria Hungarica
印刷版ISSN：1786-691X
电子版ISSN：1787-064X
出版年度：2013
卷号：9
页码：97-109
出版社：Forestry Commission of the Hungarian Academy of Sciences
摘要：Bearing capacity measurements of roads were traditionally carried out using the Benkelman beam. The Benkelman beam measurements provide the maximum vertical deflection of the pavement under 50 kN of wheel load. Nowadays the bearing capacity of public roads is measured with falling weight deflectometers. Falling weight deflectometer measurements provide the full deflection basin. It is convenient to use these high precision instruments on forest roads, but their application is inefficient and costly. The Department of Forest Opening Up developed a new method to measure the full deflection basin with the Benkelman beam. Besides the instrument improvement the authors developed a new method for the processing of the deflection basin data. Results are presented through the case study of a 2nd class opening up forest road.
关键词：Benkelman-beam ; forest road ; bearing capacity ; pavement management system