首页> 外文期刊>The international journal of pavement engineering >Optimisation of the maintenance strategies of roads in Morocco: calibration study of the degradations models of the highway development and management (HDM-4) for flexible pavements
【24h】

Optimisation of the maintenance strategies of roads in Morocco: calibration study of the degradations models of the highway development and management (HDM-4) for flexible pavements

机译:优化摩洛哥道路维护策略:互联网发展和管理的降解模型的校准研究(HDM-4)

获取原文
获取原文并翻译 | 示例

摘要

The Highway Development and Management 4 (HDM-4) model was developed by the World Bank and used for pavements management system. An approach of the adaptation to local conditions is therefore required by adjusting the calibration factors, with the consideration of the context in which they are to be applied. The aim of the present work is to suggest these calibration factors for predicting the deterioration (structural cracking, ravelling, potholes and their resultant roughness) of roads in Morocco. The careful choice of such maintenance work planning is based on the result of these models. This study is based on the exploitation of road database, obtained from visual inspections and measurements performed by the National Center of Road Study and Research. The monitoring covered 6 years and concerned 55 test sections located on the Moroccan territory. Four kinds of structures were analysed involving different pavement bodies, constituting materials and thicknesses. The used method is based on a statistical analysis using equations implemented in HDM-4 models. The calibration process of the pavement behaviour was performed by a linear regression between the predicted values and observed values. Thereafter, the calibration factors for the initiation and the propagation of each damage in the models were determined. The obtained results allow us performing a quite good calibration for a pertinent use of HDM-4 in the local context.
机译:公路开发和管理4(HDM-4)模型由世界银行开发,用于路面管理系统。因此,通过调整校准因子,考虑到要应用的上下文,因此需要对局部条件进行适应的方法。本工作的目的是提出这些校准因素,以预测摩洛哥道路的道路恶化(结构裂化,掠夺,坑洼及其所得粗糙度)。仔细选择这种维护工作规划是基于这些模型的结果。本研究基于道路数据库的开发,从国家道路研究和研究中心所执行的视觉检查和测量获得。监测涵盖了6年,涉及的55个在摩洛哥领土上的测试部分。分析了四种结构,包括不同的路面体,构成材料和厚度。使用的方法基于使用HDM-4模型中实现的等式的统计分析。路面行为的校准过程由预测值与观察值之间的线性回归执行。此后,确定了校准因素和模型中每个损坏的传播。所获得的结果允许我们在本地背景下执行相当良好的HDM-4使用校准。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号