M. I. T. TEST SECTION INSTRUMENTATION, MASSACHUSETTS BAY TRANSPORTATION AUTHORITY HAYMARKET-NORTH EXTENTION - FINAL PROJECT REPORT

THREE OBJECTIVES OF THE RESEARCH WERE TO: (1) DEVELOP A METHOD FOR ANALYZING BRACED EXCAVATIONS BASED ON THE PRINCIPLES OF SOIL MECHANICS AND THE FINITE ELEMENT TECHNIQUE; (2) PROVIDE INSIGHT INTO THE UNDRAINED BEHAVIOR OF BRACED EXCAVATIONS IN CLAY; AND (3) PREDICT THE PERFORMANCE OF TWO INSTRUMENTED SECTIONS OF A BRACED EXCAVATION. THE RESEARCH WAS INTENDED TO ILLUMINATE DESIGN AND ENGINEERING CONSIDERATIONS WITH REFERENCE TO LOAD FACTORS APPLIED TO BRACE SHEETING, THE TRANSFER OF LOADS TO THE BRACING SYSTEM, GROUND MOVEMENTS AND CHANGES IN WATER HYDROLOGY DUE TO CONSTRUCTION, AND OTHER QUESTIONS. THE FINITE ELEMENT TECHNIQUE WAS USED TO DEVELOP A UNIQUE COMPUTER PROGRAM FOR PREDICTING MOVEMENTS IN THE SOIL MASS AND THE RETAINING WALL, STRESSES ON THE WALL, AND LOADS IN THE STRUTS. APPENDED MATERIAL INCLUDES A USER'S GUIDE FOR FUTURE APPLICATIONS OF THE BRACE PROGRAM. THE REPORT CONTAINS BOTH ACTUAL AND ESTIMATED DATA AS YIELDED BY THE INSTRUMENTED SUBWAY SECTIONS. /UMTA/

  • Supplemental Notes:
    • REP NO: UMTA-MASS-MTD-2-72-1 Contract H-753
  • Corporate Authors:

    Massachusetts Institute of Technology

    Soil Mechanics Division
    Cambridge, MA  United States 

    Massachusetts Bay Transportation Authority

    10 Park Plaza
    Boston, MA  United States  02116

    Urban Mass Transportation Administration

    400 7th Street, SW
    Washington, DC  United States  20590
  • Publication Date: 1972-3

Media Info

  • Pagination: 366 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00209762
  • Record Type: Publication
  • Source Agency: Urban Mass Transportation Administration
  • Files: TRIS, USDOT
  • Created Date: Aug 15 1973 12:00AM