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2023 Vol.39, Issue 5 Preview Page
Evaluation of Reinforcement Efficiency and Applicability Using a Reinforcement Method for Liquefiable Ground

액상화 발생 지반에 대한 보강공법 별 보강 효과 및 적용성 분석

Mintaek Yoo1
,
Jin-Tae Han2
,
Youngjun Park3
,
Seok-Jung Kim4*
유 민택1
,
한 진태2
,
박 영준3
,
김 석중4*
1Member, Assistant Prof., Department of Civil and Environmental Engineering, Gachon Univ.
2Member, Research Fellow, Department of Geotechnical Engineering, Korea Institute of Civil Engineering and Building Technology
3Member, Executive Vice President, Geotechnics & Tunnel Division, Seohyun Engineering
4Member, Senior Researcher, Planning and Coordination Department, Korea Institute of Civil Engineering and Building Technology
1정회원, 가천대학교 토목환경공학과 조교수
2정회원, 한국건설기술연구원 지반연구본부 연구위원
3정회원, ㈜서현기술단 지반터널본부 부사장
4정회원, 한국건설기술연구원 경영기획실 수석연구원
*Corresponding Author
31 May 2023. pp. 41-50
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Abstract

This study reviewed the liquefaction reinforcement and ground reinforcement methods widely used domestically and abroad through construction method characteristics and analyzed the economic feasibility and reinforcement efficiency of each reinforcement method. The analysis results were used to evaluate the applicability of the appropriate reinforcement method for the liquefaction reinforcement of new and existing structures. As a result of evaluating the applicability of the reinforcement method based on the economic feasibility and reinforcement effect of each reinforcement method, the compaction method, which secures the construct ability by applying large equipment, is advantageous when reinforcing a new structure, and the low-fluidity mortar injection method (C.G.S method) and the high-pressure injection method (J.S.P method) are considered appropriate in the existing structure.

Keywords
Applicability
Economic feasibility
Efficiency
Liquefaction
Reinforcement

본 연구에서는 국내외에서 널리 사용되고 있는 액상화 보강 및 지반 보강 공법들에 대해 공법 특성별로 검토하고, 각 보강방안의 경제성 및 보강효과를 분석하였다. 또한 분석 결과를 바탕으로 신설구조물 및 기존구조물의 액상화 보강시 적절한 보강 방안 적용성 평가를 수행하였다. 보강방안 별 경제성, 보강효과를 바탕으로 보강 방안의 적용성을 평가한 결과, 신설 구조물의 보강시에는 대형장비를 적용하여 시공성이 확보되는 다짐계열 공법이 유리하며, 기존 구조물에서는 저유동성 몰탈 주입공법(C.G.S공법) 및 고압분사공법(J.S.P공법)의 적용이 적절할 것으로 판단된다.

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Information
  • Publisher :The Korean Geotechnical Society
  • Publisher(Ko) :한국지반공학회
  • Journal Title :Journal of the Korean Geotechnical Society
  • Journal Title(Ko) :한국지반공학회 논문집
  • Volume : 39
  • No :5
  • Pages :41-50
  • Received Date : 2023-03-21
  • Revised Date : 2023-04-03
  • Accepted Date : 2023-04-03
  • DOI :https://doi.org/10.7843/kgs.2023.39.5.41
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