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http://dx.doi.org/10.5762/KAIS.2012.13.3.1359

A case study on the lateral movement of bridge abutment foundation and repair methods  

Lee, Byung-Suk (Infrastructure civil Engineering Department, Chonbuk University)
Lee, Jae-Yeol (Construction Quality Testing Center, Co.)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.13, no.3, 2012 , pp. 1359-1369 More about this Journal
Abstract
In the case of using pile foundation to support bridge abutments on soft ground, the soft ground often causes serious troubles such as lateral movement of bridge abutments by lateral surcharges. In this paper, we investigated and measured the amount of strain of a bridge abutment in the south-western part of Korea. To check the stability and possibility of lateral movement of the bridge abutment, we used the four analysis methods and compared those results; lateral movement index, index for decision of lateral movement and infinite element analysis method. We performed soil and ground tests to fine the causes of the strain and lateral movement. After reviwing several types of repair methods, we suggested the anker reinforcement method along with surcharge process method as a proper repair and rehabilitation of the bridge abutment. Our investigation by through the infinite element analysis method confirmed the effectiveness of the anker reinforcement method allong with the surcharge process method.
Keywords
Allowable lateral movement; Bridge abutment; lateral movement index; Safety factor of slope; Soft ground; index for decision of lateral movement; infinite element analysis method; repair and rehabilitation method of the bridge abutment;
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