Long-Term Settlement Behavior of a Highway in Land Subsidence Area
Constructed transport facilities in soft deposits deform significantly due to long-term land subsidence. A great deal of research has been carried out to study the land subsidence–induced deformations of metro tunnels, with a few focusing on the performance of highways in soft deposits. Based on extensive field data of the Shanghai Middle Ring Highway (SMRH), this paper investigates the long-term settlement behavior of the SMRH, which consists of ground road and elevated road. Annual longitudinal settlement profiles of the SMRH are presented to study the responses of the ground road and elevated road to land subsidence. The accumulated longitudinal settlements are compared to the ground surface settlements in association with geological conditions. Moreover, a comparison of the deformation processes between the elevated road and subsoils is presented. Field data indicate that the whole highway, including ground roads and elevated roads, settled in the earlier stage, but part of the elevated roads heaved since 2009. In the ground road part, ground road settled with the ground surface. However, in the elevated road part, the ground surface settled more significantly than the elevated road, with differential settlements ranging from 15 to 40 mm. The settlements of the elevated roads were invariably close to the total compression of soils below the pile tips and the elevated road heaved due to rebound of these soils.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/08873828
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Supplemental Notes:
- ©2018 American Society of Civil Engineers.
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Authors:
- Shi, Yu-Jin
- Li, Ming-Guang
- Chen, Jin-Jian
- Wang, Jian-Hua
- Publication Date: 2018-10
Language
- English
Media Info
- Media Type: Web
- Features: References;
- Pagination: 04018063
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Serial:
- Journal of Performance of Constructed Facilities
- Volume: 32
- Issue Number: 5
- Publisher: American Society of Civil Engineers
- ISSN: 0887-3828
- Serial URL: http://ascelibrary.org/toc/jpcfev/27/1
Subject/Index Terms
- TRT Terms: Built environment; Ground settlement; Highway bridges; Land use; Soil compaction
- Identifier Terms: Shanghai Middle Ring Highway (China)
- Geographic Terms: Shanghai (China)
- Subject Areas: Environment; Geotechnology; Highways;
Filing Info
- Accession Number: 01679615
- Record Type: Publication
- Files: TRIS, ASCE
- Created Date: Aug 29 2018 9:31AM