This study is a case of construction after bridge demolition due to the aging of bridges operating the railway. Due to the influence of the pier vibration on the railway, the influence of the railway line, the construction period, etc., the P.B.S technique was applied to the coping pile foundation. It was completed in 5 days per 1 bridge pier by the PBS method. Since it is constructed in the dry season (from October to April) without vibration and noise, it can be installed safely on the rail rail of the pier of the bridge .

Abstract
 1. 서 론
 2. 시공사례 및 공법개요
 4. 결 론

• 박찬덕(지앤에스건설(주)) | Park, Chan Deok
• 박병수(강원도립대학교 건설지적토목과) | Park, Byung Soo 교신저자