基于PIM的层状路面结构动力响应求解与分析

doi:10.3969/j.issn.1674-0696.2022.05.12

重庆交通大学学报（自然科学版） ›› 2022, Vol. 41 ›› Issue (05): 82-91.DOI: 10.3969/j.issn.1674-0696.2022.05.12

基于PIM的层状路面结构动力响应求解与分析

张海廷1，杨林青2,3，郭芳4

(1. 河南水利与环境职业学院，河南郑州 450008； 2. 中山大学土木工程学院，广东广州 519082; 3. 广东技术师范学院天河学院，广东广州 510540； 4. 河南农业职业学院，河南中牟 451450)

收稿日期:2020-06-18 修回日期:2020-12-20 发布日期:2022-05-26
作者简介:张海廷(1976—)，男，河南永城人，高级工程师，硕士，主要从事无损检测方面的研究。E-mail：youpan256@163.com 通信作者：杨林青(1986—)，女，山东威海人，副教授，硕士，主要从事结构-地基动力相互作用方面的研究。Email：ylq0313@126.com
基金资助:
国家自然科学基金青年科学基金项目(51508203)

Solution and Analysis of Dynamic Response for Layered Pavement Structure Based on PIM

ZHANG Haiting1, YANG Linqing2,3, GUO Fang4

(1. Henan Vocational College of Water Conservancy and Environment, Zhengzhou 450008, Henan, China; 2. School of Civil Engineering, Sun Yat-sen University, Guangzhou 519082, Guangdong, China; 3. Tianhe College of Guangdong Polytechnic Normal University, Guangzhou 510540, Guangdong, China; 4. Henan Vocational College of Agriculture, Zhongmou 451450, Henan, China)

Received:2020-06-18 Revised:2020-12-20 Published:2022-05-26

摘要/Abstract

摘要： 为了更准确地对路面服役性能进行评估，依据落锤式弯沉仪的实测结果，基于精细积分算法建立了一种求解黏弹性层状路面结构动力响应的数值模型，以期为路面弯沉反演分析提供高效而精确的正演算法。将该算法退化为弹性模型，与已有频域算例进行对比，验证了该算法频域解的精确性，同时将计算时域结果黏弹性解与弹性解和落锤式弯沉仪实测值进行对比，验证了该算法在求解层状路面结构受FWD动荷载作用下动力响应的精度以及对实际工程的适用性。最后，利用该算法分析了沥青混凝土层和路面基层厚度对FWD动荷载作用下路面动力位移响应的影响，结果表明，两者对动力响应均有显著的影响。

关键词: 道路工程；精细积分算法；黏弹特性；谱单元法；沥青混凝土路面；FWD动荷载

Abstract: In order to evaluate the service performance of pavement more accurately, a numerical model to solve the dynamic response of viscoelastic layered pavement structure was established, which was according to the measured results of the falling weight deflectometer and based on the precise integration algorithm, so as to provide an efficient and accurate forward algorithm for pavement deflection inversion analysis. The proposed algorithm was reduced to an elastic model and compared with the existing frequency domain examples, and the accuracy of the frequency domain solution of the proposed algorithm was verified. At the same time, the viscoelastic solution of the calculated time domain results was compared with the elastic solution and the measured value of the falling weight deflectometer, and the accuracy of the proposed algorithm in solving the dynamic response of layered pavement structure under FWD dynamic load and its applicability to practical engineering were verified. Finally, the influence of asphalt concrete layer and pavement base thickness on the dynamic displacement response of pavement under FWD dynamic load was analyzed by using the proposed algorithm. The results show that the two parameters have significant influence on the dynamic response.

Key words: highway engineering; precise integration algorithm; viscoelastic properties; spectral element method; asphalt concrete pavement; FWD dynamic load

中图分类号:

U411

张海廷1，杨林青2,3，郭芳4. 基于PIM的层状路面结构动力响应求解与分析[J]. 重庆交通大学学报（自然科学版）, 2022, 41(05): 82-91.

ZHANG Haiting1, YANG Linqing2,3, GUO Fang4. Solution and Analysis of Dynamic Response for Layered Pavement Structure Based on PIM[J]. Journal of Chongqing Jiaotong University(Natural Science), 2022, 41(05): 82-91.

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基于PIM的层状路面结构动力响应求解与分析

Solution and Analysis of Dynamic Response for Layered Pavement Structure Based on PIM

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