Geomechanics and Engineering

  • 제16권2호
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  • Pages.159-168
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  • 2018
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  • 2005-307X(pISSN)
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  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Clogging theory-based real time grouting management system applicable in soil conditions

  • Kwon, Young-Sam (School of Civil, Environmental and Architectural Engineering, Korea University) ;
  • Kim, Jinchun (Korea Institute of Geo Technology Inc.) ;
  • Lee, In-Mo (School of Civil, Environmental and Architectural Engineering, Korea University)
  • 투고 : 2017.10.27
  • 심사 : 2018.05.21
  • 발행 : 2018.10.10
⟨ 이전 논문 다음 논문 ⟩

초록

In this study, a real-time grouting management system based on the clogging theory was established to manage injection procedure in real time. This system is capable of estimating hydraulic permeability with the passage of time as the grout permeates through the ground, and therefore, capable of estimating real time injection distance and flow rate. By adopting the Controlled Injection Pressure (CoIP) model, it was feasible to predict the grout permeation status with the elapse of time by consecutively updating the hydraulic gradient and flow rate estimated from a clogging-induced alteration of pore volume. Moreover, a method to estimate the volume of the fractured gap according to the reduction in injection pressure was proposed. The validity of the proposed system was successfully established by comparing the estimated values with the measured field data.

키워드

과제정보

연구 과제번호 : Development of Key Subsea Tunnelling Technology

연구 과제 주관 기관 : Ministry of Land, Infrastructure and Transport

참고문헌

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