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2018 Vol.17, Issue 3 Preview Page

Research Article

Effect of Ground Water Table on Deep Excavation Performance

지반 굴착시 지하수위가 벽체에 미치는 영향 분석

Ju-Sang Song1*
,
QAISAR ABBAS2
,
Chung-Sik Yoo3
송 주상1*
,
ABBAS QAISAR2
,
유 충식3
1Member, Former Graduate Student, School of Civil and Environmental Engineering, Sungkyunkwan Univ. Natural Sciences Campus, Cheoncheon-dong, Jangan-gu, Suwon-si, Gyeonggi-do, Korea
2Member, Graduate Student, School of Civil and Environmental Engineering, Sungkyunkwan Univ. Natural Sciences Campus, Cheoncheon-dong, Jangan-gu, Suwon-si, Gyeonggi-do, Korea
3Member, Professor, School of Civil and Environmental Engineering, Sungkyunkwan Univ. Natural Sciences Campus, Cheoncheon-dong, Jangan-gu, Suwon-si, Gyeonggi-do, Korea
* Corresponding Author
30 September 2018. pp. 33-46
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Abstract

This study presents the experimental results on the performance of deep excavation by using image processing technique particle image velocimetry (PIV). The purpose of present study is to be checked the application of PIV for the successive ground deformation during deep excavation. To meet the objectives of concern study, a series of reduce scale model test box experiments were performed by considering the wall stiffness, ground water table effect and ground relative density. The results were presented in form of contours and vector plot and further based on PIV analysis wall and ground displacement profile were drawn. The results of present study, indicate that, the PIV technique is useful to demonstrate the ground deformation zone during the successive ground excavation.

Keywords
PIV
Model test
CIP wall
CS-H wall
Excavation
Ground deformation

본 논문에서는 대심도 굴착시 흙막이 벽체에 대한 실내 모형실험 결과를 다루었다. 지반의 지하수위와 벽체의 강성등의 영향인자가 흙막이 벽체 및 지반 거동에 미치는 영향에 대한 정성적 고찰을 위하여 기존 CIP 벽체와 CS-H벽체의 휨강성에 따른 상사법칙을 적용하여 제작 및 사용하여 모형실험을 수행하였으며, 실제 현장을 모사하여 버팀보 설치 및 굴착을 진행하였다. 또한 벽체, 지반 거동 분석을 위하여 PIV 분석을 수행하였으며, 벽체변위, 지반침하 및 지반 수평변위를 분석하여 지하수위가 높아질수록 벽체 강성이 작아질수록 변위가 커지는 것을 확인하였다.

References
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Information
  • Publisher :Korean Geosythetics Society
  • Publisher(Ko) :한국지반신소재학회
  • Journal Title :Journal of the Korean Geosynthetics Society
  • Journal Title(Ko) :한국지반신소재학회 논문집
  • Volume : 17
  • No :3
  • Pages :33-46
  • Received Date : 2018-05-17
  • Revised Date : 2018-09-17
  • Accepted Date : 2018-09-20
  • DOI :https://doi.org/10.12814/jkgss.2018.17.3.033
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