Journal of the Korean Geotechnical Society (한국지반공학회논문집)

Korean Geotechnical Society (한국지반공학회)
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The Fluid Loss and Sealing Mechanisms in Slurry Trench Condition (II) : Finite Element Models of Fluid Loss for a Slurry Trench

Slurry wall 공법에서 안정액의 역할 (II) : 유한요소해석법 적용

  • Kim, Hak-Moon (Dept. of Civil Environmental Engrg., Dankook Univ.)
  • Published : 2002.08.01
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Abstract

The stability of slurry trench system is closely associated with the characteristics of the filter cake (assumed impervious membrane) transferring the hydrostatic force of slurry to the trench walls. The effectiveness of this assumption in a wide range of trench systems has been examined with the aid of a Finite Element program. Build up of excess porewater pressure in the soil mass behind the filter cake is a function of the slurry density, the properties of filter cake, the ground conditions, time, the geometry of trench and the original ground water level. These factors were all investigated by the Finite Element Method. The most significant factors were found to be the ground conditions and the properties of filter cake.

Slurry trench의 안정성은 안정액의 유압이 filter cake 막을 통하여 trench 벽에 전달됨으로서 확보될 수가 있다. 지반조건의 영향에 따른 slurry trench 공법에서 주변 공극수압의 변화를 수치해석(FEM)으로 추적하였다. 이러한 주변 공극수압의 변화 요인으로는 안정액의 밀도, filter cake의 상태, 토질조건, 시간, trench 심도, 주변지하수위로 조사되었으며, 가장 큰 영향력을 보인 요인으로는 토질조건과 filter cake 상태로 나타났다.

Keywords

References

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