Journal of Jilin University(Engineering and Technology Edition) ›› 2023, Vol. 53 ›› Issue (6): 1782-1789.doi: 10.13229/j.cnki.jdxbgxb.20220355

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Model testing and numerical analysis of dynamic response of graded crushed rock base structure

Jue LI1,2(),An-shun ZHANG1,Jun-hui ZHANG1(),Jun-feng QIAN3   

  1. 1.Key Laboratory of Special Environment Road Engineering of Hunan Province，Changsha University of Science & Technology，Changsha 410114，China
    2.College of Traffic & Transportation，Chongqing Jiaotong University，Chongqing 400074，China
    3.Department of Civil Engineering，Monash University，Clayton VIC 3800，Australia
  • Received:2023-01-31 Online:2023-06-01 Published:2023-07-23
  • Contact: Jun-hui ZHANG E-mail:lijue1207@cqjtu.edu.cn;zjhseu@csust.edu.cn

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Abstract:

To understand the actual dynamic response of graded crushed rock （GCR）， the laboratory model testing and numerical analysis of GCR base layer were performed. First， based on the cross-anisotropy theory， a mechanical-empirical model for elastic modulus of GCR was established. Then， the stress and deformation laws at different positions of GCR structure were analyzed through laboratory model test. Finally， a novel calculation approach of finite element model was proposed for GCR base layer. The results of model testing and numerical analysis show that changes of stress in the GCR structure present a significant cross-anisotropy characteristic. The loading time and peaking displacement at the top of GCR layer are closely related to vehicle speed. The calculation results of finite element model are basically consistent with the trend of laboratory model test， but it is still conservative in pavement design.

Key words: road engineering, graded crushed rock, model test, finite element method, cross-anisotropy

CLC Number: 

  • U416.1

Fig.1

Schematic diagram of cross-anisotropy model"

Fig.2

Test mold for indoor pavement structure"

Fig.3

Pavement structure and sensor layout"

Fig.4

Stress changes of dynamic soil sensor"

Fig.5

Effect of layer thickness on stress"

Fig.6

Effect of traffic speed on vertical displacement"

Fig.7

Calculation process of material model subroutine"

Table 1

Material parameters of graded gravel"

序号材料参数数值
1模型参数k11.121
2模型参数k20.48
3模型参数k3-0.037
4各向异性系数gn0.500
5各向异性系数gm0.298
6竖向泊松比μ130.259
7水平泊松比μ330.518
8上覆层密度ρ2300
9水平应力系数K00.9
10最小允许模量Emin3.00E+07
11计算阻尼系数λ0.95

Fig.8

Vertical stress distribution under PFWD test"

Fig.9

Vertical stress changes with loading time"

Fig.10

Stress difference between FEM and sensors"

Fig.11

Effect of loading time on vertical displacement"

Fig.12

Effect of speed on base layer displacement"

1 张军辉, 黄超, 张安顺, 等. 南方湿热地区高液限黏土临界破坏应力室内试验与快速预估模型研究[J]. 中南大学学报:自然科学版, 2021, 52(7): 2221-2231.
Zhang Jun-hui, Huang Chao, Zhang An-shun, et al. Laboratory tests and rapid prediction model of critical failure stress for high liquid limit clay in southern hot and humid[J]. Journal of Central South University (Science and Technology), 2021, 52(7): 2221-2231.
2 Lu G, Wang H, Törzs T, et al. In-situ and numerical investigation on the dynamic response of unbounded granular material in permeable pavement[J]. Transportation Geotechnics, 2020, 25: No.100396.
3 Thompson M R. Mechanistic-empirical flexible pavement design: an overview[J]. Transportation Research Record, 1996, 1539(1): 1-5.
4 Wang L, Wei J, Wu W, et al. Technical development and long-term performance observations of long-life asphalt pavement: a case study of Shandong province[J]. Journal of Road Engineering, 2022, 2(4): 369-389.
5 Li J, Zhang J, Zhang A, et al. Evaluation on deformation behavior of granular base material during repeated load triaxial testing by discrete-element method[J]. International Journal of Geomechanics, 2022, 22(11): No.04022210.
6 Zhang J, Li J, Yao Y, et al. Geometric anisotropy modeling and shear behavior evaluation of graded crushed rocks[J]. Construction and Building Materials, 2018, 183: 346-355.
7 Al-Qadi I L, Wang H, Tutumluer E. Dynamic analysis of thin asphalt pavements by using cross-anisotropic stress-dependent properties for granular layer[J]. Transportation Research Record, 2010, 2154(1): 156-163.
8 Porter D W. Technical basis of the 1992 austroads pavement design guide (flexible pavements)[R]. Australia: ARRB Transport Research, 1999.
9 Wang H, Al-Qadi I L. Importance of nonlinear anisotropic modeling of granular base for predicting maximum viscoelastic pavement responses under moving vehicular loading[J]. Journal of Engineering Mechanics, 2013, 139(1): 29-38.
10 Adu-Osei A, Little D N, Lytton R L. Cross-anisotropic characterization of unbound granular materials[J]. Transportation Research Record, 2001, 1757(1): 82-91.
11 Tutumluer E, Thompson M R. Anisotropic modeling of granular bases in flexible pavements[J]. Transportation Research Record, 1997, 1577(1): 18-26.
12 Kim S H, Little D N, Masad E. Simple methods to estimate inherent and stress-induced anisotropy of aggregate base[J]. Transportation Research Record, 2005, 1913(1): 24-31.
13 黄优, 刘朝晖, 柳力, 等. 沥青路面结构粒料层非线性行为研究[J]. 中南大学学报:自然科学版, 2022, 53(2): 665-676.
Huang You, Liu Zhao-hui, Liu Li, et al. Nonlinear behavior of unbound granular layer in asphalt pavement structure[J]. Journal of Central South University (Science and Technology), 2022, 53(2): 665-676.
14 何丽红, 马悦帆, 邓稳, 等. SRX聚合物级配碎石强度特性分析[J]. 重庆交通大学:自然科学版, 2022, 41(4): 76-80.
He Li-hong, Ma Yue-fan, Deng Wen, et al. Strength characteristics analysis of SRX polymer graded crushed stone[J]. Journal of Chongqing Jiaotong University (Natural Science), 2022, 41(4): 76-80.
15 冉武平, 陈慧敏, 李玲, 等. 干湿循环下粗粒土回弹模量演变规律及模型预估和修正[J]. 吉林大学学报: 工学版, 2021, 51(6): 2079-2086.
Ran Wu-ping, Chen Hui-min, Li Ling, et al. Evolution law and model estimation and modification of resilience modulus of coarse grained soil subgrade under wet and dry cycle[J]. Journal of Jilin University (Engineering and Technology Edition), 2021, 51(6): 2079-2086.
16 李宁, 马骉, 李瑞, 等. 基于PUMA的单级和多级加载模式下碎石粒料性能研究[J]. 公路交通科技, 2019, 36(3): 62-72.
Li Ning, Ma Biao, Li Rui, et al. Study on performance of unbound granular materials under single-stage and multi-stage loading modes based on PUMA[J]. Journal of Highway and Transportation Research and Development, 2019, 36(3): 62-72.
17 Gu C, Ye X, Cao Z, et al. Resilient behavior of coarse granular materials in three dimensional anisotropic stress state[J]. Engineering Geology, 2020, 279: No.105848.
18 吕松涛, 郑国志, 吴政达, 等. 分层铺筑与反挖试验条件下级配碎石结构模量特性[J]. 中国公路学报, 2022, 35(12): 1-11.
Lv Song-tao, Zheng Guo-zhi, Wu Zheng-da, et al. Structural modulus of graded aggregate under layered paving and excavation test condition[J]. China Journal of Highway and Transport, 2022, 35(12): 1-11.
19 Lu G, Wang H, Törzs T, et al. In-situ and numerical investigation on the dynamic response of unbounded granular material in permeable pavement[J]. Transportation Geotechnics, 2020, 25: No.100396.
20 . 公路沥青路面施工技术规范 [S].
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