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2023 Vol.24, Issue 10
Appropriateness Evaluation of Train Vibration Evaluation Method Considering Vibration Levels of Retaining Wall Adjacent to Railway Tunnels

철도터널과 인접한 흙막이 가시설의 진동 수준을 고려한 열차진동 평가방법의 적정성 평가

Donghee Woo1
,
Yeongjin Lee2
,
Yongjae Song3
,
Kangil Lee4*
우 동희1
,
이 영진2
,
송 용재3
,
이 강일4*
1Master Candidate, Dept. of Civil Engineering, Daejin University
2Ph.D Candidate, Dept. of Civil and Environmental Engineering, Daejin University
3Ph.D Candidate, Dept. of Civil and Environmental Engineering, Daejin University
4Professor, Dept. of Smart Construction and Environmentall Engineering, Daejin University
*Corresponding Author
1 October 2023. pp. 5-13
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Abstract

With the recent increase in development projects centered on urban areas, the construction of building structures is increasing in areas adjacent to the urban railway operation section. In this case, since ground vibration is generated by the train in operation and affects the adjacent structure, the building structure needs appropriate vibration reduction against train vibration generated at the adjacent location from the desing phase. However, the vibration levels calculated vary depending on the train vibration evaluation method, which means that the implementation of vibration reduction may vary depending on the train vibration evaluation method. Therefore, this study calculated the vibration level according to ground conditions, tunnel depth and separation distance between vibration sources and adjacent structures using numerical analysis and train vibration evaluation methods, and compared them to designning phase. And the appropriate separation distance between the tunnel and the adjacent structure was evaluated by comparing the vibration level with the allowable standards. As a result of the study, the Ungar and Bender evaluation method is evaluated as the most appropriate among the train vibration evaluation methods, and the appropriate separation distance between the tunnel and the adjacent structure is evaluated to be more than 4.5D.

Keywords
Railway tunnel
Train vibration
Ground vibration
Vibration level
Train vibration evaluation method

최근 도심지를 중심으로 개발사업이 증가함에 따라 도시철도 운행구간 인접지역에서 건축 구조물의 시공이 증가하고 있다. 이러한 경우 운행 중인 열차에 의해 지반진동이 발생하여 인접 구조물에 영향을 미치므로 건축 구조물은 설계단계부터 인접한 위치에서 발생하는 열차진동에 대한 적절한 방진대책이 필요하다. 그러나, 열차진동 평가방법에 따라 산정된 진동 수준은 서로 상이하며, 이는 열차진동 평가방법별로 방진대책 실시여부가 달라질 수 있음을 의미한다. 따라서, 본 연구는 수치해석과 열차진동 평가방법을 이용하여 지반조건, 터널깊이, 가진원과 인접 구조물 간의 이격거리에 따른 진동 수준을 산정하고, 이를 설계사례와 비교하여 적용성이 높은 열차진동 평가방법을 제시하였다. 그리고, 진동 수준과 허용규제기준과의 비교를 통해 터널과 인접 구조물 간 적정 이격거리를 평가하였다. 연구결과, 열차진동 평가방법 중 Ungar and Bender 평가방법이 가장 적정성이 높은 것으로 평가되었으며, 터널과 인접 구조물 간의 적정 이격거리는 4.5D 이상인 것으로 평가되었다.

키워드
철도터널
열차진동
지반진동
진동 수준
열차진동 평가방법
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Information
  • Publisher :Korean Geo-Environmental Society
  • Publisher(Ko) :한국지반환경공학회
  • Journal Title :Journal of the Korean Geo-Environmental Society
  • Journal Title(Ko) :한국지반환경공학회 논문집
  • Volume : 24
  • No :10
  • Pages :5-13
  • Received Date : 2023-07-12
  • Revised Date : 2023-07-17
  • Accepted Date : 2023-08-03
  • DOI :https://doi.org/10.14481/jkges.2023.24.10.5
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