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径向基函数网络在沥青路面使用性能评价中的应用

Keywords: 道路工程,沥青路面,径向基函数网络,使用性能,PQI

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Abstract:

为提高沥青路面使用性能评价的科学性和合理性,利用神经网络技术对处理非线性映射问题有较好适应性的特点,开发了基于径向基函数网络的路面使用性能评价模型,模型综合考虑了交通量、温度、面层厚度、PCI指标等10个参数对沥青路面使用性能的影响,选择一定的样本数据进行了网络训练,并将训练好的网络模型的输出值与测试值进行了比较。计算结果表明,径向基函数网络模型弥补了传统评价模型的狭隘性、单一性等缺点,更真实地反映了路面工作性能与各影响因素之间的本构关系,且预估精度能够很好地满足工程实际要求,具有良好的推广性和可靠性。

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