湖南省高速公路路面使用性能衰变模型  

Decay model of Hunan expressway pavement performance

作　　者：肖金平[1,2] 韦慧[1] 赵健[1] 李振存[1] 

机构地区：[1]长沙理工大学交通运输工程学院,湖南长沙410076 [2]湖南省高速公路管理局,湖南长沙410001

出　　处：《中南大学学报（自然科学版）》2015年第7期2686-2692,共7页Journal of Central South University:Science and Technology

基　　金：教育部新世纪优秀人才支持计划项目(NCET-11-0977);湖南省研究生科研创新项目(CX2013B369)~~

摘　　要：为科学掌握高速公路路面使用性能衰变规律,合理预测大修年限,以已积累的湖南省连续10 a近1 000 km高速公路路面使用性能数据为基础,分析得到湖南省高速公路路面损坏状况指数和路面行驶质量指数大致呈反"S"型曲线规律衰减。基于此,提出能够描述衰变模式的余弦函数路面使用性能衰变模型,并研究模型参数的数学与物理意义。研究结果表明:模型参数?与路面大修年限具有良好的一致性;将余弦函数路面使用性能衰变模型用于评价高速公路路面损坏状况以及路面行驶质量,并对其进行拟合,拟合得到的大修年限与实际大修年限基本吻合,验证了该模型的有效性和实用性。In order to master decay law of the expressway pavement performance, and reasonably predict the overhaul period, pavement surface condition index and riding quality index which decayed roughly ＂anti-S-curve＂ were obtained, based on the test data accumulated from nearly a 1 000 km for 10 years in Hunan expressway pavement performance The new cosine function model of pavement performance degradation was put forward, and the mathematical and physical meaning of model parameters were studied. The results show that model parameter a has good consistency with the overhaul period of the road. The cosine fimction model of pavement performance degradation can be applied to evaluate expressway pavement surface condition and riding quality condition, which is consistent with the actual overhaul period, and the correctness and practicability of the model are verified.

关 键 词：道路工程 高速公路 衰变模型 使用性能预测 

分 类 号：U416.216[交通运输工程—道路与铁道工程]