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http://dx.doi.org/10.12814/jkgss.2016.15.3.067

Comparison of Construction Cost and External Stability of Railway Abutment wall with Friction Angle of Backfill Materials  

Yoo, Chunghyun (Department of Railway Construction, Seoul National University of Science and Technology)
Choi, Chanyong (High Speed Research Division, Korea Railroad Resarch Institute)
Yang, Sangbeom (Dept of Civil, Architecture and Environmental Systems Engineering, Sungyunkwan Univ.)
Park, Yonggul (Department of Railway Construction, Seoul National University of Science and Technology)
Publication Information
Journal of the Korean Geosynthetics Society / v.15, no.3, 2016 , pp. 67-76 More about this Journal
Abstract
The railway bridge abutment subjected to the lateral earth pressure is a sensitive structure that is affected by backfill materials, installation methods, compaction, and drainage system and so on. The several design loads for the bridge abutment design consist of traffic loading on bridges and vertical & lateral force due to surcharge load at backfill. Especially, the lateral earth pressure of design load components is important and considered in the design of geotechnical engineering structure such as bridge abutment wall. The determination of cross section for abutment is finally determined with calculating external stability and member force of abutment wall structures. In this study, the abutment wall height is 12m and the optimal cross section of abutment wall has been determined that satisfies an external stability for abutment structure through friction angles of 35, 40, and 45 degrees of backfill materials. The external stability and member force of abutment wall with friction angle of backfill materials and were calculated and construction cost of each abutment wall structures was compared. It found that the construction cost was reduced from 2.2 to 8.4% with friction angle of backfill materials.
Keywords
Friction angle; Stability; Axial force of member; Construction cost; Railway bridge abutment;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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