水泥混凝土路面系统强度评定方法

交通运输系统工程与信息 ›› 2007, Vol. 7 ›› Issue (5): 106-109 .

水泥混凝土路面系统强度评定方法

葛洪海，许金余

西北工业大学力学与土木建筑学院，西安，710072

收稿日期:2007-05-29 修回日期:1900-01-01 出版日期:2007-10-20 发布日期:2007-10-20

The Evaluation Method of Concrete Pavement System

Ge Honghai，Xu Jinyu

School of Mechanics, Civil Engineering & Arch., Northwestern Polytechnical University, Xi’an, 710072, China

Received:2007-05-29 Revised:1900-01-01 Online:2007-10-20 Published:2007-10-20

摘要/Abstract

摘要： 水泥混凝土路面系统是由汽车载荷、路面和地基组成的复杂力学系统，在交通工程中参数识别方法的研究是一项重要的课题。本文首先将水泥混凝土路面系统简化为弹性地基板模型，通过理论分析得到了系统在多轮载荷作用下的解析解，在此基础上，将理论计算弯沉曲线和实测弯沉曲线相比较建立了目标函数，通过选代方法建立了一种识别水泥混凝土路面系统若干物理参数方法。根据这种方法，我们能方便的得到路面板的厚度、抗弯刚度和地基反应模量，这些参数在水泥混凝土路面系统的强度评定中具有重要的作用。最后通过工程实例计算说明了本文方法的可行性和可靠性。

关键词: 水泥混凝土路面, 弹性地基, 汽车载荷, 强度评定

Abstract: The concrete pavement system is a complicated mechanical system, which is composed of the car load, pavement and foundation. The research on the parameter identification method for the system is an important category in the transport engineering. In this paper, an approximate analytical solution for the concrete pavement system under multiple wheel loads is obtained. An optimization algorithm is employed to identify the correlative parameters, and the objective function is constructed by comparing with the measure displacement curve and computing displacement curve. According to this optimization algorithm, we can obtain the thickness, bending rigidity and foundation response modulus conveniently. This parameter will play an important role in evaluating the strength of the pavement. In order to show the application of the method developed in this paper, an actual concrete road has been investigated, and the results has shown a good agreement with the experimental results.

Key words: concrete pavement system, elastic foundation, airplane load, parameter identification

中图分类号:

U416.216

葛洪海,许金余. 水泥混凝土路面系统强度评定方法[J]. 交通运输系统工程与信息, 2007, 7(5): 106-109 .

Ge Honghai,Xu Jinyu. The Evaluation Method of Concrete Pavement System[J]. Journal of Transportation Systems Engineering and Information Technology, 2007, 7(5): 106-109 .

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链接本文: http://www.tseit.org.cn/CN/abstract/abstract17587.shtml

http://www.tseit.org.cn/CN/Y2007/V7/I5/106

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