Chapter
May 22, 2014
Research on the Anchorage-Reinforced Technology in the Highway Subgrade Widening Projects
Authors: He Wang [email protected], Guang-qing Yang [email protected], Wei-chao Liu, Ph.D. [email protected], and Bao-lin Xiong, Ph.D. [email protected]Author Affiliations
Publication: Ground Improvement and Geosynthetics
Abstract
The new anchorage-reinforced technology in the highway subgrade widening project is put forward in order to realize the effective joining between the new and the existing subgrade. The anchoring mechanism of anchoring bar and the function mechanism of geogrids in the joining between the new and the existing subgrade are analyzed in this paper. The design method of anchorage-reinforced composite structure is studied. Based on the FEM, the characteristics of the ground settlement and horizontal displacement, sungrade surface settlement and the geogrids stress are researched according to the three subgrade widening schemes; that is, excavation step only, excavation step + geogrid reinforcement, and excavation step + geogrid reinforcement + anchor bolt. These study results can be used as a reference for future studies and designs of highway subgrade widening projects.
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Published In
Ground Improvement and Geosynthetics
Pages: 452 - 463
Copyright
© 2014 American Society of Civil Engineers.
History
Published online: May 22, 2014
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ASCE Technical Topics:
- Anchors
- Composite structures
- Construction engineering
- Construction management
- Construction methods
- Engineering fundamentals
- Equipment and machinery
- Excavation
- Geogrids
- Geomaterials
- Geomechanics
- Geotechnical engineering
- Highway and road management
- Highway transportation
- Highways and roads
- Infrastructure
- Pavements
- Project management
- Soil dynamics
- Soil mechanics
- Soil settlement
- Structural engineering
- Structures (by type)
- Subgrades
- Transportation engineering
Authors
Affiliations
Ph.D. Candidate, School of Civil Engineering, Beijing Jiaotong University, No. 3 Shangyuancun, Haidian District, Beijing, China 100044. E-mail: [email protected]
Professor, School of Civil Engineering, Shijiazhuang Tiedao University, No. 17 North 2nd Ring Road East, Shijiazhuang, Hebei Province, China 050043. E-mail: [email protected]
Lecturer, School of Civil Engineering, Shijiazhuang Tiedao University, No. 17 North 2nd Ring Road East, Shijiazhuang, Hebei Province, China 050043. E-mail: [email protected]
Associate Professor, School of Civil Engineering, Shijiazhuang Tiedao University, No. 17 North 2nd Ring Road East, Shijiazhuang, Hebei Province, China 050043. E-mail: [email protected]
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