基于惰性弯沉点的刚性下卧层深度设置方法

doi:10.13229/j.cnki.jdxbgxb20170679

摘要/Abstract

摘要： 针对目前刚性下卧层深度难以合理确定的问题,提出了一种新型的基于惰性弯沉点的设置方法——惰性点法。该方法通过在待评价路段内检测多条弯沉盆,利用均方根误差最小原则确定惰性弯沉点参数(位置和弯沉);基于惰性弯沉点不随上部结构层模量变化而变化的特性,使用粒子群优化算法迭代求解该路段的刚性层深度和土基模量。理论模拟分析表明,惰性点法可以精确反演刚性层深度,平均反演误差仅为1%。现场实测数据分析表明,沥青路面结构存在惰性点,并能用于刚性层深度和土基模量反演。与现有方法相比,惰性点法土基模量反演结果变异性较低,且能考虑地域差异。

关键词: 道路工程, 刚性下卧层, 惰性弯沉点, 模量反演, 粒子群算法, 弯沉盆

Abstract: To solve the problem that it is difficult to reasonably determine depth of rigid layer, a novel method based on inertial point is proposed. First, the multiple deflection basin curves are detected within the section to be evaluated. Then, the parameters of inertial point (the offset distance and the deflection) are determined by obtaining the minimum of the root mean square error. Finally, the particle swarm optimization algorithm is applied to perform the iteration to back-calculate the rigid layer depth and subgrade modulus from the parameters of inertial point, whose deflection does not vary with the modulus of the upper layer. Analysis of theoretical simulation shows that the proposed method can accurately back-calculate the rigid layer depth with average back-calculation error of only 1%. The filed data show that the inertial point actually exists in the deflection basin curve measured on the asphalt pavement surface, and can be used to back-calculate the rigid layer depth and subgrade modulus. Compared with existing method, the variation of subgrade modulus back-calculated from the proposed method is lower, and the regional differences can be considered.

Key words: road engineering, rigid layer, inertial point, modulus back-calculation, particle swarm optimization(PSO), deflection basin curve

中图分类号:

U416.2

臧国帅, 孙立军. 基于惰性弯沉点的刚性下卧层深度设置方法[J]. 吉林大学学报(工学版), 2018, 48(4): 1037-1044.

ZANG Guo-shuai, SUN Li-jun. Method based on inertial point for setting depth to rigid layer[J]. 吉林大学学报(工学版), 2018, 48(4): 1037-1044.

参考文献

[1] 朱洁. 沥青路面多层结构模量高精度反算方法研究[D]. 上海: 同济大学交通运输工程学院, 2013.
Zhu Jie.Method of the back-calculation of high-precision modulus for multilayer structures of asphalt pavement[D]. Shanghai: College of Transportation Engineering,Tongji University, 2013.
[2] 陈靖翔. 落重挠度仪检测荷重与坚硬层深度对反算分析之影响[D]. 台北: 国立台湾大学, 2006.
Chen Jing-xiang.Load of the influence of FWD and hard layer depth on back-calculation[D]. Taibei: National Taiwan University, 2006.
[3] 谢兆星,丛林,郭忠印. 基于FWD弯沉盆参数的沥青路面土基模量评价方法研究[J]. 公路交通科技. 2009, 26(12): 28-31.
Xie Zhao-xing, Cong Lin, Guo Zhong-yin.Evaluation of subsoil modulus for asphalt pavement based on FWD deflection basin parameter[J]. Journal of Highway and Transportation Research and Development, 2009, 26(12):28-31.
[4] 余欢,陈长. 沥青路面模量反演分析中刚性下卧层设置方法[J]. 交通科学与工程, 2014, 30(4): 1-6.
Yu Huan, Chen Zhang.Setting method of rigid substratum in modulus back-calculation of the asphalt pavement[J]. Journal of Transport Science and Engineering,2014, 30(4): 1-6.
[5] Chou Y.Development of an expert system for nondestructive pavement structural evaluation [D]. Texas: Texas A&M University,1989.
[6] Rohde G T, Smith R E.Determining depth to apparent stiff layer from FWD data [R]. Texas: Texas Transportation Institute(FHWA/TX-91-1159-1),1991.
[7] Uzan J, Lytton R L, Germann F P.General procedure for backcalculating layer moduli[C]∥The 1st Conference on Nondestructive Testing of Pavements and Backcalculation of Moduli, West Conshohocken, PA, 1989:217-228.
[8] Yusuf Mehta, Roque Reynaldo.Evaluation of FWD data for determination of layer moduli of pavements[J]. Journal of Materials in Civil Engineering, 2003, 15(1): 25-31.
[9] 余欢. 沥青路面半刚性基层损坏评价及刚性下卧层深度设置[D]. 上海:同济大学交通运输工程学院,2015.
Yu Huan.Damage evaluation of semi-rigid base and setting method of rigid substratum depth for asphalt pavement[D]. Shanghai: College of Transportation Engineering, Tongji University, 2015.
[10] Bush III A J. Nondestructive testing for light aircraft pavements phase II development of the nondestructive evaluation methodology [R]. Washington: Army Engineer Waterways Experiment Station Geotechnical Lab(FAA-RD-80-9-II), 1980.
[11] 严菁. 沥青路面反演分析中刚性下卧层设置规律研究及应用[D]. 上海: 同济大学交通运输工程学院, 2010.
Yan Jing.Research on the rule of setting the rigid bottom layer and its application in back-calculation of asphalt pavements [D]. Shanghai: College, Transportation Engineering, Tongji University, 2010.
[12] 孙立军,八谷好高,姚祖康. 水泥混凝土路面板模量反算的一种新方法——惰性弯沉法[J]. 土木工程学报,2000,33(1):83-87.
Sun Li-jun, Ba-Gu Hao-gao, Yao Zu-kang. A new method to backcalculate layer moduli for concrete pavements[J]. China Civil Engineering Journal,2000,33(1):83-87.
[13] Zhang Xiao-ning, Sun Li-jun.Novel method for backcalculation of asphalt pavement moduli[J]. Transportation Research Record, 2004, 1869:67-72.
[14] 朱洁,陈长,孙立军. 沥青路面惰性弯沉点的选取及土基模量的反演[J]. 同济大学学报:自然科学版, 2013, 41(12):1824-1829.
Zhu Jie, Chen Zhang, Sun Li-jun.Selection of inertial point for asphalt pavement and backcalculation method of subgrade modulus[J]. Journal of Tongji University (Natural Science), 2013, 41(12): 1824-1829.
[15] 张利彪,周春光,马铭,等. 基于粒子群算法求解多目标优化问题[J].计算机研究与发展,2004,41(7):1286-1291.
Zhang Li-biao, Zhou Chun-guang, Ma Ming, et al.Solutions of multi-objective optimization problems based on particle swarm optimization[J]. Journal of Computer Research and Development, 2004, 41(7):1286-1291.

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