ANCHORED DIAPHRAGM WALLS IN SAND-SOME DESIGN AND CONSTRUCTION CONSIDERATIONS

A METHOD OF ESTIMATING THE ANCHOR LOADS REQUIRED TO SUPPORT A MULTI-TIED CONTINUOUS WALL IS INTRODUCED. IT INVOLVES A PROCEDURE WHICH CALCULATES THE POSITION AND MAGNITUDE OF A RESULTANT TIE AT ANY STAGE OF EXCAVATION BY TREATING THE WALL AS A SINGLE TIED STRUCTURE. COMPARISON OF DESIGNS CARRIED OUT BY THE CEMENTATION METHOD AND EXPERIMENTAL WORK INDICATE THAT THE RESULTS OBTAINED PROVIDE A GOOD ESTIMATE OF THE HORIZONATAL FORCES. THE RESULS OBTAINED BY THE GENERALLY USED METHODS ARE ALSO SHOWN. THE MAIN DESIGN AND STABILITY CONSIDERATIONS ASSOCIATED WITH TRENCH EXCAVATION UNDER BENTONITE ARE DESCRIBED. RECOMMENDATIONS COVERING THE MAIN REQUIREMENTS FOR TREMIE CONCRETE FOR LOAD BEARING DIAPHRAGM WALLS ARE GIVEN. METHODS OF ESTIMATING ANCHOR LOCATION, OVERALL STABILITY AND LOAD CARRYING CAPACITY WITH RELEVANT SAFETY FACTORS ARE ILLUSTRATED. ANCHOR CONSTRUCTION STAGES ARE DESCRIBED TOGETHER WITH THE POSTTENSIONING PROCEDURES AND CORROSION PROTECTION NORMALLY RECOMMENDED FOR SAND ANCHORS. FINALLY, THE INFLUENCE OF PRESTRESSED TIE-BACKS ON THE LATERAL MOVEMENTS AND SETTLEMENT OF THE RETAINED SOIL MASS IS DISCUSSED. /AUTHOR/

  • Supplemental Notes:
    • Vol 18, No 4, PP 15-29
  • Authors:
    • Littlejohn, G S
    • Jack, B J
    • Sliwinski, Z J
  • Publication Date: 1971-4

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Filing Info

  • Accession Number: 00236058
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 15 1971 12:00AM