Full-scale model testing of the dynamic response of lime-stabilized weathered red mudstone subgrade under railway excitation
文献类型：期刊论文
| 作者 | Zhang, Chonglei1,2 ; Jiang, Guanlu3
|
| 刊名 | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
 |
| 出版日期 | 2020-03-01 |
| 卷号 | 130页码:105999 |
| ISSN号 | 0267-7261 |
| 关键词 | Subgrade Suitability Full-scale model Dynamic response Weathered red mudstone Cumulative settlement |
| DOI | 10.1016/j.soildyn.2019.105999 |
| 通讯作者 | Jiang, Guanlu(wgljiang@home.swjtu.edu.cn) |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | The suitability of lime-stabilized weathered red mudstone (LSWRM) as a subgrade filler material has not been comprehensively investigated. This study aims to determine the dynamic response and cumulative settlement characteristics of a newly designed LSWRM subgrade and evaluate the adaptability of LSWRM for use in high-speed railways (HSRs). Full-scale model testing of the LSWRM subgrade was performed using a cyclic loading apparatus. Under dynamic wheel loads and rainfall conditions, the distribution characteristics of the dynamic stress, dynamic displacement, and acceleration of the subgrade were monitored. The cumulative settlement law of the subgrade bed was analysed to determine the adaptability of LSWRM. Through a comparison with the standard Group A&B subgrade, the dynamic wheel load was identified as a main factor influencing the distributions of the dynamic parameters, whereas the influence of daily rainfall was limited. The dynamic parameters showed a saddle-shaped transverse distribution. Additionally, the appropriate thickness of the subgrade bed was evaluated based on the dynamic stress attenuation characteristics, and the cumulative settlement of the bottom layer accounted for 0.3% of the subgrade bed height. These dynamic parameters can meet the requirements of existing HSR specifications, and thus, filling the bottom layer with LSWRM is an appropriate option. |
| 电子版国际标准刊号 | 1879-341X |
| WOS关键词 | HIGH-SPEED RAILWAY ; BED MECHANICAL-BEHAVIOR ; TRANSITION ZONES ; DEFORMATION CHARACTERISTICS ; GROUND VIBRATION ; BALLASTED TRACK ; TRAIN ; SUBSTRUCTURE ; PREDICTION ; SETTLEMENT |
| 资助项目 | National Natural Science Foundation of China[51808542] ; National Natural Science Foundation of China[41761144077] ; Youth Innovation Promotion Association CAS[2019364] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000512483200029 |
| 资助机构 | National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS |
| 源URL | [http://ir.imde.ac.cn/handle/131551/34045]  |
| 专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 通讯作者 | Jiang, Guanlu |
| 作者单位 | 1.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China; 2.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China; 3.Southwest Jiaotong Univ, MOE Key Lab High Speed Railway Engn, Sch Civil Engn, Chengdu 610031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Chonglei,Jiang, Guanlu. Full-scale model testing of the dynamic response of lime-stabilized weathered red mudstone subgrade under railway excitation[J]. SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,2020,130:105999. |
| APA | Zhang, Chonglei,&Jiang, Guanlu.(2020).Full-scale model testing of the dynamic response of lime-stabilized weathered red mudstone subgrade under railway excitation.SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,130,105999. |
| MLA | Zhang, Chonglei,et al."Full-scale model testing of the dynamic response of lime-stabilized weathered red mudstone subgrade under railway excitation".SOIL DYNAMICS AND EARTHQUAKE ENGINEERING 130(2020):105999. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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