CERTAIN FEATURES OF LATERAL PRESSURES OF SOILS

A BRIEF REVIEW IS PRESENTED OF EXPERIMENTAL INVESTIGATIONS OF TWO TYPES OF RETAINING STRUCTURES IN THE UNITED STATES AND IN ENGLAND. SPECIAL FEATURES ARE DESCRIBED OF LATERAL PRESSURES ON INCLINED STRUTS OF WIDE OPEN BRACED CUTS. PRACTICAL EXPERIENCES DURING THE CONSTRUCTION OF THE FIRST NEW YORK SUBWAYS SHOWED THAT THE LATERAL PRESSURES OF SOILS AGAINST THE UPPER ROWS OF STRUTS EXCEEDED APPRECIABLY THE VALUES OBTAINED FROM DESIGN DIAGRAMS OF THE CUSTOMARY TRIANGULAR SHAPE. THE PREVENTIVE MEASURES IN SUCH CASES WERE FOUND TO BE: (1) THE GROUND WATER LOWERING SHOULD BE PERFORMED NOT ONLY BY STEPPED ROWS OF WELL POINTS INSIDE OF THE CUT BUT ALSO WITH THE HELP OF INDIVIDUAL DEEP WELLS WITH PRESSURE PUMPS AT THEIR BOTTOMS PLACED OUTSIDE OF THE SHEET WALL, (2) ADDITIONAL ROWS OF STRUTS SHOULD BE INSTALLED HAVING THE PURPOSE TO DECREASE THE SPAN 'L' AND TO RELIEVE THE UPPER ROW OF INCLINED STRUTS, AND (3) CONSIDERATION SHOULD BE GIVEN IN DESIGN EVEN IF ONLY APPROXIMATELY TO ALL THESE SPECIAL FACTORS WHEN COMPUTING AND DETAILING THE STRUCTURE. SOME ASPECTS ARE OUTLINED OF THE DESIGN OF ANCHORED SHEET PILE BULKHEADS. THE SIMPLIFIED METHOD OF THE EQUIVALENT BEAM WITH REPORTED MODIFICATIONS IS SUGGESTED AS REPRESENTING A PRACTICAL, FEASIBLE APPROACH TO A FINAL SOLUTION OF THE DESIGN PROBLEMS FOR THIS TYPE OF STRUCTURE.

Media Info

  • Monograph Title: SOIL AND FOUNDATION ENGINEERING IN THE UNION OF SOVIET SOCIALIST REPUBLICS
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00235473
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Sep 2 1994 12:00AM