연약지반의 배수설계 기법에 관한 연구

A Study on the Method of Design of Drainage in Soft Clay

  • 발행 : 1997.06.01

초록

In this study, examined influence of consolidation effect that had affected by location of pump inlet that was set collection well for drainage of pore water discharged by embankment on soft ground through the field test. The results of this study are summarized as follows; 1 Initial consolidation curve value were larger than theoritic value, the cause of these phenomena were thought influence of secondary consolidation and three dimensional strain of soft clay. 2. The settlement value of Hosino method was larger than that of Hyperbolic method, but settlement value of Hyperbolic method was accurate more than that of Hosino method in the prediction of settlement. 3. When pump inlet in collection well came down from GL+O.3m to GL-1.5m, settlement value increased about 10cm and when the ground water level was made insitu after pumping had completed , settlement was expanded about 7~8cm. So it is found that location change of pump inlet bad an influence on settlement remarkably. 4. If location of pump inlet in collection well for large scale estate or wide road site is lowered than original ground level, the settlement will be accelerated effectively, and at this stage automatic pump must be used in pumping.

키워드

참고문헌

  1. Soils and Foundation v.18 no.4 Observation procedure of settlement prediction Asoka,A.
  2. Soft Clay Engineering,Elsevier Consolidation and settlement of soft clay Blasbramanium,A.S.;E.W.Brenner
  3. 대한토목학회 연약지반 성토관리시 장래침하량 추정기법에 관한 연구,학술발표회 논문집(Ⅲ) 정형식;황영철;권덕우
  4. 토질역학-이론과 응용 김상규
  5. 한국지반공학회 연직배수공법, 연약지반처리 위원회 현지 세미나 김영남;이강일
  6. Proceeding of the 2nd int, Conf. on SMFE Accelerating consolidation of fine grained soil by means of cardboard wicks Kjellman,W.
  7. 토지개발기술 no.겨울호 유한요소법에 의한 PACK DRAIN공법의 압밀침하량 예측 이문수
  8. The Consolidation of Soft Clay-A new consolidation theory and its applications Mikasa,M.
  9. 現場技術者の 土と 基礎シリズ v.3 地盤改良の 調査設計から 施工まで 土質工學會
  10. Soils and Foundation v.14 no.2 Consolidation of soils by vertical drain walls with finite permeability Yoshikuni,H.;H.Nakanodo