SOME FACTORS CONTROLLING THE PORE PRESSURES SET UP DURING THE CONSTRUCTION OF EARTH DAMS

WHEN CLIMATIC CONDITIONS NECESSITATE THE PLACEMENT OF ROLLED EARTH FILL ON THE WET SIDE OF THE OPTIMUM WATER CONTENT, HIGH PORE PRESSURES ARE SET UP UNLESS DRAINAGE OCCURS AS CONSTRUCTION PROCEEDS, AND THESE PRESSURES PRESENT A DIFFICULT STABILITY PROBLEM. HOWEVER, IF EVEN A LIMITED AMOUNT OF DRAINAGE CAN OCCUR, EITHER NATURALLY OR AS THE RESULT OF SPECIAL DESIGN FEATURES, IT IS FOUND TO RESULT NOT ONLY IN A REDUCTION OF THE PORE PRESSURE ALREADY SET UP AT ANY STAGE OF CONSTRUCTION, BUT ALSO IN A REDUCTION IN THE INCREMENT OF PORE PRESSURE WHICH WOULD OCCUR, UNDER UNDRAINED CONDITIONS, WHEN THE SUBSEQUENT LAYERS OF FILL WERE PLACED. THIS CUMULATIVE EFFECT OF PARTIAL DISSIPATION OF THE INITIAL EXCESS PORE PRESSURE MAKES A MARKED CONTRIBUTION TO THE STABILITY DURING CONSTRUCTION. IN THIS PAPER ITS THEORETICAL BASIS IS DISCUSSED AND ITS IMPORTANCE IS ILLUSTRATED BY LABORATORY TESTS AND FIELD DATA. /AUTHOR/

  • Supplemental Notes:
    • Vol 2, Div 3B-6, PP 294-300, 10 FIG, 1 TAB, 9 REF
  • Corporate Authors:

    Butterworth & Company Ltd, London /UK

    /4th Conf
    ,   United States 

    N/A

    ,   United States 

    Western Australia University, Australia

    Nedlands, Western Australia,   Australia 

    National Belgian Roads Congress

    ,    

    Pca Foreign Literature Study

    ,    
  • Authors:
    • Bishop, A W
  • Conference:
  • Publication Date: 0

Media Info

  • Serial:
    • Volume: 2

Subject/Index Terms

Filing Info

  • Accession Number: 00231418
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 15 2004 2:41AM