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首页> 外文期刊>International Journal of Transportation Engineering and Technology >Load Characterization and Prediction of Entry into Perpetual Construction Domain for Highway Pavement Structures by Truck Factor Study
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Load Characterization and Prediction of Entry into Perpetual Construction Domain for Highway Pavement Structures by Truck Factor Study

机译：卡车因子研究对公路路面结构流入的负荷表征与预测

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This paper presents the results of pavement characterization study of a highway by Truck Factor and Axle Load Factor. The study highway is one of Nigeria's most important corridors linking the South and the North of the country. The Truck Factor obtained is 9.30 Equivalent Standard Axle Loads (ESALs) while the average Load Factor per axle is 3.25 ESALs. These values particularly the Truck Factor are on the very high side in comparison to published figures in other countries. In the United States of America, published figures for Truck Factors for the rural Interstate highway system and rural principal arterials are 0.52and 0.38 respectively. That for the United Kingdom for similar roads is 2.75. Truck axle overload could therefore be one of the sources of prevalent premature pavement failures on this and similar highways in the country. Also, while single axles in the trucks carried a load of 2.29 ESALs each, tandem and tridem axles impacted the pavement with loads of 3.59 and 6.4 ESALs per axle respectively. If the study pavement were to be reconstructed for a design life of 20years, 66.05 million ESALs from truck axles would cumulate in this period as obtained from this study. This figure is more than double the 30million ESALs stipulated as the trigger load for perpetual or long life pavement construction. Therefore, the study highway should be reconstructed as such.
机译：本文介绍了卡车因子和轴载荷因子对高速公路路面表征研究的结果。这项高速公路是尼日利亚最重要的走廊之一，将南部和该国北部联系在一起。获得的卡车系数是9.30等效标准轴载（ESALS），而平均负载因子每轴是3.25 ESAls。这些价值观特别是卡车因子与其他国家的公布图相比，在非常高的一侧。在美利坚合众国，农村公路系统和农村主要动脉的卡车因子的公布数据分别为0.52和0.38。这对于英国进行类似的道路是2.75。因此，卡车轴过载可能是该国普遍存在的过早路面故障的源头之一。此外，虽然卡车中的单轴载有2.29埃斯的载荷，但串联和三角轴分别影响了每轴的载荷3.59和6.4埃斯巴尔的路面。如果研究路面被重建为20年的设计寿命，那么从本研究中获得的这一时期，卡车轴的6605万埃斯巴尔将累积。该数字略高于30mlion ESAls，作为永久或长寿命施工的触发载荷。因此，应重建研究公路。

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