Case study of immersed tunnel for preservation of ecological environment

Sung Kwon Ahn; Hee Up Lee

doi:10.9711/KTAJ.2022.24.6.679

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2022 Vol.24, Issue 6 Preview Page Next Page

Technical Paper

Case study of immersed tunnel for preservation of ecological environment 생태환경 보존을 위한 침매터널 사례연구

30 November 2022. pp. 679-697

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Abstract

Having an awareness of the ongoing conception of Honam-Jeju, Korea-Japan, and Korea-China subsea tunnels for accommodating the railway, this paper investigates immersion tube tunnel technology, one of the underwater tunnel construction methods. This paper analyses the current status of immersed tube tunnels according to their location and function. This paper summarises the dredging methods and briefly introduces the muck disposal facility. Also introduced are the case studies where measures were taken to mitigate the impact of dredging on the surrounding marine environment. This paper also explains how the tunnel elements are connected underwater using an immersion joint. This paper classifies the foundation methods into bedding and ground improvement methods and provides summaries, including their environmental impact associated with drill cuttings and cementitious binders.

Keywords

Dredger

Element transport

Confined disposal facility

Gravel bedding method

Sand compaction pile method

본고에서는 호남~제주, 한중 및 한일 해저 철도에 대한 구상이 지속되고 있는 여건을 고려해 해저 철도 공사 방법 중 하나인 침매 터널 기술에 대해 조사한다. 본고는 현황조사를 통해 침매 터널을 대륙별 및 기능별로 분류해 분석한다. 본고는 준설방법을 요약해 정리하고 준설토 처리시설에 대해 설명한다. 또한 본고에서는 준설 작업이 해양 생태 환경에 미치는 영향을 줄이기 위해 취해진 조치 사례들을 소개한다. 본고는 침설 조인트 등 수중 함체 연결 과정 및 원리에 대해 설명한다. 본고는 기초공사를 성토와 지반개량으로 분류해 요약 정리하고, 관련된 지반 타공 및 수중 시멘트 사용이 주변 생태 환경에 미치는 영향에 대해 고찰한다.

키워드

준설선

함체 운송

밀폐된 준설토 처리시설

자갈 기초 공법

모래 다짐 말뚝 공법

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Information

Publisher :Korean Tunneling and Underground Space Association
Publisher(Ko) :한국터널지하공간학회
Journal Title :Journal of Korean Tunnelling and Underground Space Association
Journal Title(Ko) :한국터널지하공간학회 논문집
Volume : 24
No :6
Pages :679-697
Received Date : 2022-10-25
Revised Date : 2022-11-15
Accepted Date : 2022-11-24
DOI :https://doi.org/10.9711/KTAJ.2022.24.6.679

Journal of Korean Tunnelling and Underground Space Association ISSN:2233-8292(Print) 2287-4747(Online) 한국터널지하공간학회 논문집

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