Design method of pile-slab structure roadbed of ballastless track on soil subgrade
文献类型：期刊论文
| 作者 | Zhan Yong-xiang1,2; Yao Hai-lin1,2; Jiang Guan-lu3 |
| 刊名 | JOURNAL OF CENTRAL SOUTH UNIVERSITY
 |
| 出版日期 | 2013 |
| 卷号 | 20期号:7页码:2072-2082 |
| 关键词 | soil subgrade ballastless track pile-slab structure roadbed load combination dynamic model test |
| ISSN号 | 2095-2899 |
| DOI | 10.1007/s11771-013-1709-2 |
| 英文摘要 | Pile-slab structure roadbed is a new form of ballastless track for high speed railway. Due to lack of corresponding design code, based on the analysis of its structure characteristics and application requirements, it is proposed to carry out load effect combination according to ultimate limit state and serviceability limit state, and the most unfavorable combination of each state is chosen to carry through design calculation for pile-slab structure. Space model of pile-slab structure can be simplified as a plane frame model, by using the orthogonal test method, and the design parameter of pile-slab structure is optimized. Moreover, based on the engineering background of Suining-Chongqing high-speed railway, the dynamic deformation characteristics of pile-slab structure roadbed are further researched by carrying on the indoor dynamic model test. The test results show that the settlement after construction of subgrade satisfies the requirement of settlement control to build ballastless track on soil subgrade for high-speed railway. Slab structure plays the role of arch shell as load is transmitted from slab to pile, and the vertical dynamic stress of subgrade soil is approximately of "K" form distribution with the depth. The distribution of pile stress is closely related to soil characteristics, which has an upset triangle shape where the large dynamic stress is at the top. Pile compared with soil shares most dynamic stress. Pile structure expands the depth of the dynamic response of subgrade and improves the stress of subgrade soil, and the speed of train has limited effect on dynamic response. These results can provide scientific basis for pile-slab structure roadbed used on soil subgrade. |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000321670200038 |
| 出版者 | JOURNAL OF CENTRAL SOUTH UNIV TECHNOLOGY |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3478]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech ; 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 3.Southwest Jiaotong Univ, Sch Civil Engn |
| 推荐引用方式 GB/T 7714 | Zhan Yong-xiang,Yao Hai-lin,Jiang Guan-lu. Design method of pile-slab structure roadbed of ballastless track on soil subgrade[J]. JOURNAL OF CENTRAL SOUTH UNIVERSITY,2013,20(7):2072-2082. |
| APA | Zhan Yong-xiang,Yao Hai-lin,&Jiang Guan-lu.(2013).Design method of pile-slab structure roadbed of ballastless track on soil subgrade.JOURNAL OF CENTRAL SOUTH UNIVERSITY,20(7),2072-2082. |
| MLA | Zhan Yong-xiang,et al."Design method of pile-slab structure roadbed of ballastless track on soil subgrade".JOURNAL OF CENTRAL SOUTH UNIVERSITY 20.7(2013):2072-2082. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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