IMHE OpenIR  > 山地灾害与地表过程重点实验室
Investigation of immersion influence on dynamic properties of high-speed railway subgrade with semi-rigid waterproof functional layer through field-excitation testing
Wang, Liang-liang1,2; Lei, Xiaoqin3,4; Liu, Shukui1,2
2018
Source PublicationCANADIAN GEOTECHNICAL JOURNAL
ISSN0008-3674
Volume55Issue:1Pages:19-33
AbstractThe subgrade below the under-construction Kunming-Shanghai high-speed railway faces serious stability problems induced by considerable swelling and shrinkage volume change of expansive soil along with variation of moisture content. To prevent the occurrence of potential damage, reasons for the frequent occurrence of drainage ditch breakage and platform damage along the railway corridor in expansive soil areas were analyzed. A novel integral ancillary facility and semi-rigid waterproof functional layer were developed. Large-scale field dynamic tests were carried out to investigate the fatigue performance of the waterproof functional layer and the influences of different service environments (relatively dry condition and immersion condition) on the dynamic response of the subgrade. Results show that the fatigue property and waterproofing capability of the waterproof functional layer can fulfill the standard requirements for the high-speed railway subgrade. There was an enlargement phenomenon of the dynamic stress and vibration velocity when the service environment of subgrade changed from a relatively dry condition to an immersion condition. The vibration velocity seemed to increase along the depth of the graded broken stone surface layer and decrease linearly with further depth increase from the bottom surface of the waterproof functional layer.
Keywordsubgrade field test subgrade vibration expansive soil high-speed railway
DOI10.1139/cgj-2016-0606
WOS KeywordTRACK-SOIL INTERACTION ; GROUND VIBRATION ; EXPANSIVE SOIL ; SWELLING BEHAVIOR ; MOVING LOAD ; FLY-ASH ; VEHICLE ; LINES ; TRAIN ; IMPROVEMENT
Language英语
Funding ProjectFundamental Research Funds for the Central Universities[2017XKQY050] ; China Railway Eryuan Engineering Group Co., Ltd.
WOS Research AreaEngineering ; Geology
WOS SubjectEngineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000418926500002
Funding OrganizationFundamental Research Funds for the Central Universities ; China Railway Eryuan Engineering Group Co., Ltd.
PublisherCANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/20799
Collection山地灾害与地表过程重点实验室
Corresponding AuthorWang, Liang-liang
Affiliation1.China Univ Min & Technol, State Key Lab Geomech & Deep Underground Engn, Xuzhou 221116, Peoples R China
2.China Univ Min & Technol, Sch Mech & Civil Engn, Xuzhou 221116, Peoples R China
3.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Sichuan, Peoples R China
4.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Wang, Liang-liang,Lei, Xiaoqin,Liu, Shukui. Investigation of immersion influence on dynamic properties of high-speed railway subgrade with semi-rigid waterproof functional layer through field-excitation testing[J]. CANADIAN GEOTECHNICAL JOURNAL,2018,55(1):19-33.
APA Wang, Liang-liang,Lei, Xiaoqin,&Liu, Shukui.(2018).Investigation of immersion influence on dynamic properties of high-speed railway subgrade with semi-rigid waterproof functional layer through field-excitation testing.CANADIAN GEOTECHNICAL JOURNAL,55(1),19-33.
MLA Wang, Liang-liang,et al."Investigation of immersion influence on dynamic properties of high-speed railway subgrade with semi-rigid waterproof functional layer through field-excitation testing".CANADIAN GEOTECHNICAL JOURNAL 55.1(2018):19-33.
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