[1]臧国帅,孙立军,陈长.基于虚拟惰性点的土基模量反演方法[J].东南大学学报(自然科学版),2017,47(6):1227-1232.[doi:10.3969/j.issn.1001-0505.2017.06.023]
 Zang Guoshuai,Sun Lijun,Chen Zhang.Back-calculating method for subgrade modulus based on virtual inertial points[J].Journal of Southeast University (Natural Science Edition),2017,47(6):1227-1232.[doi:10.3969/j.issn.1001-0505.2017.06.023]
点击复制

基于虚拟惰性点的土基模量反演方法()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
47
期数:
2017年第6期
页码:
1227-1232
栏目:
交通运输工程
出版日期:
2017-11-20

文章信息/Info

Title:
Back-calculating method for subgrade modulus based on virtual inertial points
作者:
臧国帅孙立军陈长
同济大学道路与交通工程教育部重点实验室, 上海 201804
Author(s):
Zang Guoshuai Sun Lijun Chen Zhang
Key Laboratory of Road and Traffic Engineering of Ministry of Education, Tongji University, Shanghai 201804, China
关键词:
沥青路面 惰性点 弯沉盆曲线 落锤式弯沉仪 模量反演
Keywords:
asphalt pavement inertial point deflection basin curve falling weight deflectometer modulus back-calculation
分类号:
U416.2
DOI:
10.3969/j.issn.1001-0505.2017.06.023
摘要:
为了提高惰性点法土基模量反演精度,研究了基于有限点弯沉的完整弯沉盆的预测方法,提出了基于预测完整弯沉盆的虚拟惰性点计算方法,并与基于实际完整弯沉盆的实际惰性点的反演结果相对比,针对反演精度进行了理论分析和实例验证.结果表明,分别采用对数分段线性插值法和指数模型预测弯沉检测范围内、外的弯沉盆信息时,预测精度高,计算简便.实惰性点法和虚惰性点法的平均理论反演误差分别为1.70%和1.53%.惰性点位置对反演误差有较大影响,当惰性点位置超出弯沉盆检测范围时,实惰性点法和虚惰性点法的平均反演误差分别为2.63%和1.45%.实测弯沉盆分析结果与理论模拟分析结果相符.通过改进惰性点参数计算方法,虚惰性点法显著提高了土基模量反演精度.
Abstract:
To improve the back-calculating accuracy of subgrade modulus based on inertial points, the prediction method for the complete deflection basin based on a finite number of deflections was studied. The calculation method for virtual inertial points based on the predicted complete deflection basin curve was proposed. The results were compared with the back-calculated results for the realistic inertial points based on the realistic complete deflection basin curve. The theoretical analysis and the example verification for the back-calculating precision were carried out. The results show that, when the deflections within and outside the detection range are predicted by the logarithmic piecewise linear interpolation method and the exponential fitting model respectively, the prediction accuracy is high and the calculation is convenient. The average theory back-calculating errors for the realistic and virtual inertial point methods are 1.70% and 1.53%, respectively. The position of the inertial point has a great influence on the back-calculating error. When the inertial point is outside the detection range, the average back-calculating errors for the realistic and virtual inertial point methods are 2.63% and 1.45%, respectively. The results based on the measured deflection basin curves are in agreement with the simulation results. Through the improvement of the calculation of inertial point parameters, the virtual inertial point method significantly improves the back-calculation precision of the subgrade modulus.

参考文献/References:

[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.
[2] Burak Goktepe A, Agar E, Hilmi Lav A. Advances in backcalculating the mechanical properties of flexible pavements[J]. Advances in Engineering Software, 2006, 37(7): 421-431. DOI:10.1016/j.advengsoft.2005.10.001.
[3] 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): 83-87,99. DOI:10.3321/j.issn:1000-131X.2000.01.016.
Sun Lijun, Yoshitaka Hachiya, Yao Zukang. A new method to backcalculate layer moduli for concrete pavements[J]. China Civil Engineering Journal, 2000, 33(1): 83-87,99. DOI:10.3321/j.issn:1000-131X.2000.01.016. (in Chinese)
[4] Zhang X, Sun L. Novel method for backcalculation of asphalt pavement moduli [J]. Transportation Research Record: Journal of the Transportation Research Board, 2004, 1869: 67-72. DOI:10.3141/1869-08.
[5] 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. DOI:10.3969/j.issn.0253-374x.2013.12.010.
Zhu Jie, Chen Zhang, Sun Lijun. 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. DOI:10.3969/j.issn.0253-374x.2013.12.010. (in Chinese)
[6] 王旭东, 郭大进, 邓学钧. 动态弯沉盆几何特性分析[J]. 东南大学学报(自然科学版), 1999, 29(5): 115-120. doi:10.3969/j.issn.1001-0505.1999.05.024.
  Wang Xudong, Guo Dajin, Deng Xujun. Geometric characteristic analyze of the dynamic deflection basin[J]. Journal of Southeast University(Natural Science Edition), 1999, 29(5): 115-120. doi:10.3969/j.issn.1001-0505.1999.05.024.(in Chinese)
[7] 刘军忠, 翁兴中, 张俊,等. 应急机场土质道面疲劳变形特性模型试验[J]. 西南交通大学学报, 2014, 49(3): 412-418. DOI:10.3969/j.issn.0258-2724.2014.03.007.
Liu Junzhong, Weng Xingzhong, Zhang Jun, et al. Model experiment of fatigue deformation characteristic of emergency soil airfield pavement[J]. Journal of Southwest Jiaotong University, 2014, 49(3): 412-418. DOI:10.3969/j.issn.0258-2724.2014.03.007. (in Chinese)
[8] 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.
[9] Uzan J, Lytton R L, Germann F P. General procedure for back-calculating layer moduli [C]//First International Symposium on Nondestructive Testing of Pavements and Backcalculation of Moduli. Baltimore, USA, 1989: 217-228. DOI:10.1520/stp19809s.
[10] 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. DOI:10.3969/j.issn.1674-599X.2014.04.001.
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. DOI:10.3969/j.issn.1674-599X.2014.04.001. (in Chinese)

相似文献/References:

[1]张璠,陈荣生,倪富健.排水性沥青路面混合料的渗透性能试验测试技术[J].东南大学学报(自然科学版),2010,40(6):1288.[doi:10.3969/j.issn.1001-0505.2010.06.030]
 Zhang Fan,Chen Rongsheng,Ni Fujian.Techniques of permeability testing for porous asphalt pavement mixture[J].Journal of Southeast University (Natural Science Edition),2010,40(6):1288.[doi:10.3969/j.issn.1001-0505.2010.06.030]
[2]李辉,黄晓明,张久鹏,等.基于连续变温的沥青路面车辙模拟分析[J].东南大学学报(自然科学版),2007,37(5):915.[doi:10.3969/j.issn.1001-0505.2007.05.035]
 Li Hui,Huang Xiaoming,Zhang Jiupeng,et al.Simulation analysis on rutting of asphalt pavements considering consecutive temperature variation[J].Journal of Southeast University (Natural Science Edition),2007,37(6):915.[doi:10.3969/j.issn.1001-0505.2007.05.035]
[3]钟勇强,黄晓明,廖公云,等.融沉变形对柔性路面应力应变影响试验研究[J].东南大学学报(自然科学版),2011,41(1):181.[doi:10.3969/j.issn.1001-0505.2011.01.035]
 Zhong Yongqiang,Huang Xiaoming,Liao Gongyun,et al.Influence of thawing settlement deformation on stress and strain in flexible pavement[J].Journal of Southeast University (Natural Science Edition),2011,41(6):181.[doi:10.3969/j.issn.1001-0505.2011.01.035]
[4]董元帅,唐伯明,刘清泉,等.基于弯沉盆参数的沥青路面动态弯沉综合修正系数[J].东南大学学报(自然科学版),2011,41(5):1081.[doi:10.3969/j.issn.1001-0505.2011.05.035]
 Dong Yuanshuai,Tang Boming,Liu Qingquan,et al.Dynamic synthetic deflection correction factor of asphalt pavement based on deflection basin parameters[J].Journal of Southeast University (Natural Science Edition),2011,41(6):1081.[doi:10.3969/j.issn.1001-0505.2011.05.035]
[5]李汉光,高英,余文斌.沥青混合料压实特性及沥青路面碾压遍数确定[J].东南大学学报(自然科学版),2011,41(1):186.[doi:10.3969/j.issn.1001-0505.2011.01.036]
 Li Hanguang,Gao Ying,Yu Wenbin.Compaction characteristics of hot mixed asphalt and number of roller passes[J].Journal of Southeast University (Natural Science Edition),2011,41(6):186.[doi:10.3969/j.issn.1001-0505.2011.01.036]
[6]张中琼,吴青柏,刘永智,等.青藏高原公路路面结构水热差异变化分析[J].东南大学学报(自然科学版),2015,45(5):975.[doi:10.3969/j.issn.1001-0505.2015.05.027]
 Zhang Zhongqiong,Wu Qingbai,Liu Yongzhi,et al.Analysis on hydrothermal difference changes of highway pavement structure on the Qinghai-Tibet Plateau[J].Journal of Southeast University (Natural Science Edition),2015,45(6):975.[doi:10.3969/j.issn.1001-0505.2015.05.027]
[7]武书华,陈华鑫,张久鹏,等.半刚性基层沥青路面层间界面力学特性与黏结状态的试验研究[J].东南大学学报(自然科学版),2016,46(2):406.[doi:10.3969/j.issn.1001-0505.2016.02.028]
 Wu Shuhua,Chen Huaxin,Zhang Jiupeng,et al.Experimental study on mechanical properties and bond condition at interlayer between asphalt surface and semi-rigid base[J].Journal of Southeast University (Natural Science Edition),2016,46(6):406.[doi:10.3969/j.issn.1001-0505.2016.02.028]
[8]李凌林,黄晓明,朱大勇,等.广义Kelvin模型在沥青路面中的应用[J].东南大学学报(自然科学版),2016,46(2):413.[doi:10.3969/j.issn.1001-0505.2016.02.029]
 Li Linglin,Huang Xiaoming,Zhu Dayong,et al.Application of generalized Kelvin model in asphalt pavement[J].Journal of Southeast University (Natural Science Edition),2016,46(6):413.[doi:10.3969/j.issn.1001-0505.2016.02.029]
[9]王元元,何亮,孙璐.矿料分异处理对沥青混合料抗滑性能的影响[J].东南大学学报(自然科学版),2017,47(6):1216.[doi:10.3969/j.issn.1001-0505.2017.06.021]
 Wang Yuanyuan,He Liang,Sun Lu.Effect of differentiation processing of mineral aggregate on asphalt pavement sliding resistance[J].Journal of Southeast University (Natural Science Edition),2017,47(6):1216.[doi:10.3969/j.issn.1001-0505.2017.06.021]
[10]郑彬双,朱晟泽,程永振,等.基于轮胎滑水模型的轮胎-沥青路面附着特性影响因素分析[J].东南大学学报(自然科学版),2018,48(4):719.[doi:10.3969/j.issn.1001-0505.2018.04.019]
 Zheng Binshuang,Zhu Shengze,Cheng Yongzhen,et al.Analysis on influence factors of adhesion characteristic of tire-asphalt pavement based on tire hydroplaning model[J].Journal of Southeast University (Natural Science Edition),2018,48(6):719.[doi:10.3969/j.issn.1001-0505.2018.04.019]

备注/Memo

备注/Memo:
收稿日期: 2017-04-29.
作者简介: 臧国帅(1992—),男,博士生;孙立军(联系人),男,博士,教授,博士生导师,ljsun@tongji.edu.cn.
基金项目: 国家自然科学基金资助项目(51678443,71471134)、交通运输建设科技资助项目(2015318822170).
引用本文: 臧国帅,孙立军,陈长.基于虚拟惰性点的土基模量反演方法[J].东南大学学报(自然科学版),2017,47(6):1227-1232. DOI:10.3969/j.issn.1001-0505.2017.06.023.
更新日期/Last Update: 2017-11-20