The settlement and damage characteristics of pavement structure under impulse load

LIN Qindong; FENG Chun; TANG Dehong; LI Shihai; YIN Lingyun; WANG Ranjiang

doi:10.11883/bzycj-2018-0320

Volume 39 Issue 11

Nov. 2019

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LIN Qindong, FENG Chun, TANG Dehong, LI Shihai, YIN Lingyun, WANG Ranjiang. The settlement and damage characteristics of pavement structure under impulse load[J]. Explosion And Shock Waves, 2019, 39(11): 115103. doi: 10.11883/bzycj-2018-0320

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LIN Qindong, FENG Chun, TANG Dehong, LI Shihai, YIN Lingyun, WANG Ranjiang. The settlement and damage characteristics of pavement structure under impulse load[J]. Explosion And Shock Waves, 2019, 39(11): 115103. doi: 10.11883/bzycj-2018-0320

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The settlement and damage characteristics of pavement structure under impulse load

doi: 10.11883/bzycj-2018-0320

LIN Qindong^{1, 2},
FENG Chun^{1
,
,},
TANG Dehong¹,
LI Shihai^{1, 2},
YIN Lingyun³,
WANG Ranjiang³

1.
Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
2.
School of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, China
3.
Engineering Design Institute of Rocket Force, Beijing 100011, China

Received Date: 2018-08-29
Rev Recd Date: 2018-11-14
Publish Date: 2019-11-01

Abstract

Abstract

As the road plays a more important role in the missile’s unsupported random launch, it is of great significance to study the settlement and damage characteristics under the impulse load of the launching cylinder to improve the weapon deterrent force of China. The object of study is low grade road structure. Firstly, based on the statistical information of low-grade road structures in Henan, Shandong, Yunnan and Guangdong provinces, a 1/4 simplified calculation model for typical low-grade road structures is established. An explicit numerical analysis method CDEM based on FEM and DEM is introduced, and a plastic-localized-rupture coupled constitutive model is introduced to realize three-dimension full-time simulation of pavement settlement under impulse load, explicitly reveal the process of crack initiation and expansion, and realize the transition of the pavement structure from continuous state to discontinuous state. The correctness of the road numerical model and the calculation accuracy of CDEM are verified by comparing with the results of Falling Weight Deflectometer. Then the typical asphalt concrete and cement concrete road structures are selected for numerical simulation and analyzed from the aspects of the settlement, fracture degree and damage characteristics. The results show that the settlement time-history curve is consistent with the trend of the impulse load, and the settlement reaches the maximum at the peak point of the impulse load; the fracture surface is mainly generated during the period of sharp increase of the impulse load, accounting for 97% of the final total fracture area; the fracture surface is roughly divided into the vertical surface in the layer and the horizontal fracture surface between the layers, the failure type includes tensile failure and shear failure; the upper part of the pavement structure produces an annular fracture surface, and the lower part produces a radial fracture surface.
- low-grade road,
- impulse load,
- settlement and damage,
- CDEM,
- FWD

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References(18)

References

[1]	周晓和, 马大为, 任杰, 等. 某导弹无依托发射场坪动态响应与破坏形态研究 [J]. 兵器材料科学与工程, 2014, 37(2): 77–81. DOI: 10.14024/j.cnki.1004-244x.2014.02.030. ZHOU Xiaohe, MA Dawei, REN Jie, et al. Dynamic response and failure mode of a missile unsupported random launching site [J]. Ordnance Material Science and Engineering, 2014, 37(2): 77–81. DOI: 10.14024/j.cnki.1004-244x.2014.02.030.
[2]	丰佩. 某车载垂直发射装置结构设计与动力学仿真分析[D]. 南京: 南京理工大学, 2015: 55–72.
[3]	HU X D, FARUK A N M, ZHANG J, et al. Effects of tire inclination (turning traffic) and dynamic loading on the pavement stress-strain responses using 3-D finite element modeling [J]. International Journal of Pavement Research and Technology, 2017, 10(4): 304–314. DOI: 10.1016/j.ijprt.2017.04.005.
[4]	WU J M, LIANG J P, ADHIKARI S. Dynamic response of concrete pavement structure with asphalt isolating layer under moving loads [J]. Journal of Traffic and Transportation Engineering (English Edition), 2014, 1(6): 439–447. DOI: 10.1016/S2095-7564(15)30294-4.
[5]	袁成林, 马大为, 张震东. 层间接触与弹性模量对某导弹场坪动载的影响 [J]. 火力与指挥控制, 2016, 41(3): 53–56, 61. DOI: 10.3969/j.issn.1002-0640.2016.03.014. YUAN Chenglin, MA Dawei, ZHANG Zhendong. Effect of interface condition and elastic modulus on launching site asphalt pavement [J]. Fire Control & Command Control, 2016, 41(3): 53–56, 61. DOI: 10.3969/j.issn.1002-0640.2016.03.014.
[6]	颜可珍, 江毅, 黄立葵, 等. 层间接触对沥青加铺层性能的影响 [J]. 湖南大学学报(自然科学版), 2009, 36(5): 11–15. YAN Kezhen, JIANG Yi, HUANG Likui, et al. Effect of bond condition on overlay performance [J]. Journal of Hunan University (Natural Science), 2009, 36(5): 11–15.
[7]	薛亮, 张维刚, 梁鸿颉. 考虑层间不同状态的沥青路面力学响应分析 [J]. 沈阳建筑大学学报(自然科学版), 2006, 22(4): 575–578. DOI: 10.3969/j.issn.2095-1922.2006.04.011. XUE Liang, ZHANG Weigang, LIANG Hongjie. The mechanical response analysis of asphalt pavement in different interface condition between layers [J]. Journal of Shenyang Jianzhu University(Natural Science), 2006, 22(4): 575–578. DOI: 10.3969/j.issn.2095-1922.2006.04.011.
[8]	黄宝涛, 廖公云, 张静芳. 半刚性基层沥青路面层间接触临界状态值的计算方法 [J]. 东南大学学报(自然科学版), 2007, 37(4): 666–670. DOI: 10.3321/j.issn:1001-0505.2007.04.024. HUANG Baotao, LIAO Gongyun, ZHANG Jingfang. Analytical method of interlayer contact fettle in semi-rigid-base bituminous pavement [J]. Journal of Southeast University (Natural Science Edition), 2007, 37(4): 666–670. DOI: 10.3321/j.issn:1001-0505.2007.04.024.
[9]	赵炜诚, 许志鸿, 黄文. 混凝土面层与贫混凝土基层的层间作用对荷载应力和弯沉的影响 [J]. 中国公路学报, 2003, 16(4): 9–15. DOI: 10.3321/j.issn:1001-7372.2003.04.003. ZHAO Weicheng, XU Zhihong, HUANG Wen. Influence of load stress and deflection on interfacial interaction between Portland concrete pavement and lean concrete base [J]. China Journal of Highway and Transport, 2003, 16(4): 9–15. DOI: 10.3321/j.issn:1001-7372.2003.04.003.
[10]	李彦伟, 穆柯, 石鑫, 等. 基面层间接触状态对沥青路面力学响应影响 [J]. 长安大学学报(自然科学版), 2014, 34(2): 38–44. DOI: 10.19721/j.cnki.1671-8879.2014.02.007. LI Yanwei, MU Ke, SHI Xin, et al. Impact of base-surface contact conditions on mechanical response of asphalt pavement [J]. Journal of Chang'an University(Natural Science Edition), 2014, 34(2): 38–44. DOI: 10.19721/j.cnki.1671-8879.2014.02.007.
[11]	冯春, 李世海, 刘晓宇. 半弹簧接触模型及其在边坡破坏计算中的应用 [J]. 力学学报, 2011, 43(1): 184–192. DOI: 10.6052/0459-1879-2011-1-lxxb2010-080. FENG Chun, LI Shihai, LIU Xiaoyu. Semi-spring contact model and its application to failure simulation of slope [J]. Chinese Journal of Theoretical and Applied Mechanics, 2011, 43(1): 184–192. DOI: 10.6052/0459-1879-2011-1-lxxb2010-080.
[12]	杨长卫, 张建经, 张明, 等. 双面高陡岩质边坡地震滑坡机制的研究 [J]. 岩土力学, 2013, 34(11): 3261–3268. DOI: 10.16285/j.rsm.2013.11.021. YANG Changwei, ZHANG Jianjing, ZHANG Ming, et al. Analysis of landslide mechanisms of a high steep rock hill with two-side slopes under ground shaking [J]. Rock and Soil Mechanics, 2013, 34(11): 3261–3268. DOI: 10.16285/j.rsm.2013.11.021.
[13]	冯春, 李世海, 周东, 等. 爆炸载荷作用下岩石损伤破裂过程的数值分析 [J]. 岩土工程学报, 2014, 36(7): 1262–1270. DOI: 10.11779/CJGE201407010. FENG Chun, LI Shihai, ZHOU Dong, et al. Numerical analysis of damage and crack process of rock under explosive loading [J]. Chinese Journal of Geotechnical Engineering, 2014, 36(7): 1262–1270. DOI: 10.11779/CJGE201407010.
[14]	郭汝坤. 基于原位试验和CDEM的边坡灾变状态分析评价方法研究[D]. 北京: 中国科学院大学, 2016: 43–44.
[15]	张文清. 冲击载荷下松软煤力学特性及对煤与瓦斯突出的影响[D]. 安徽淮南: 安徽理工大学, 2015: 2–6. ZHANG Wenqing. Study on mechanical property of soft coal under impact load and its effect to coal and gas outburst [D]. Huainan, Anhui: Anhui University of Science & Technology, 2015: 2–6.
[16]	李洪超. 岩石RHT模型理论及主要参数确定方法研究[D]. 北京市: 中国矿业大学(北京), 2016: 22–23. LI Hongchao. The study of the rock RHT model and to determine the values of main parameters[D]. Beijing: China University of Mining & Technology, Beijing, 2016: 22–23.
[17]	李世海, 王理想, 冯春, 等. 煤层自燃防治与高温爆破安全技术中的若干力学问题 [J]. 爆破, 2015, 32(3): 1–9, 16. DOI: 10.3963/j.issn.1001-487X.2015.03.001. LI Shihai, WANG Lixiang, FENG Chun, et al. Several mechanical problems on prevention of spontaneous combustion of coal and safety controlling in high-temperature blasting [J]. Blasting, 2015, 32(3): 1–9, 16. DOI: 10.3963/j.issn.1001-487X.2015.03.001.
[18]	冯锦艳, 郭志培, 于志全. 冲击载荷下低等级沥青路沉降计算方法探讨 [J]. 地下空间与工程学报, 2016, 12(S2): 889–893. FENG Jinyan, GUO Zhipei, YU Zhiquan. Discussion on settlement calculation methods of the low level asphalt pavement under action of impact load [J]. Chinese Journal of Underground Space and Engineering, 2016, 12(S2): 889–893.