TUNNELING EXPERIENCES, CITY OF EDMONTON, ALBERTA CANADA

TUNNEL REQUIREMENTS ARE BROKEN INTO THREE CATEGORIES AND THE SIX MAJOR STEPS WHICH MAKE UP THE CONSTRUCTION OF INTERCEPTOR SEWERS BY THE TUNNELING METHOD ARE DESCRIBED. MAJOR TUNNEL OPERATIONS ARE DONE BY MINING MACHINES ALONG WITH A SKIP HOIST FOR MUCK DISPOSAL, MATERIALS HANDLING AND LOWERING AND RAISING OF PERSONNEL. FOR SMALLER TUNNEL OPERATIONS, A STATIONARY WALKING GANTRY WITH A CAR DUMPING STAND AND A SEPARATE MAN CAGE FOR LOWERING PERSONNEL INTO THE SHAFT IS USED. STILL SMALLER TUNNELS REQUIRE A MOBILE GANTRY CRANE. IN A DISCUSSION OF THE SURFACE AND UNDERGROUND PLANT SETUP, THE FENCING OF THE SITE AND THE EQUIPMENT USED ARE REVIEWED. THE HOISTS OF VARYING SIZE THAT WERE USED ARE DESCRIBED IN A TABLE, AS ARE ALSO THE COMPRESSORS. THE SINKING OF THE SHAFT WHICH IS CIRCULAR AND VARIES IN SIZE DEPENDING ON THE SIZE OF THE JOB IS DETAILED. FOR SHAFTS UP TO 10 FT DIAMETER, SQUARE, 3-GAGE, FOUR FLANGED LINER PLATES WERE USED. THE GROUND IS EXCAVATED BY HAND WITH THE USE OF 37 LB. JACKHAMMERS. MINE UNDERVENT AND TUNNEL EXCAVATION PROCEDURES ARE ALSO REVEIWED. INVERT POUR, ARCH POUR, MONOLITHIC POUR-FILL CIRCLE, AND PRECAST PIPE COMPLETE WITH GROUTING (THE FOUR OPERATIONS IN THE PLACING OF THE CONCRETE LINER) ARE REVIEWED. TRAINING AND SAFETY PROGRAMS, THE DOMINANT FEATURES OF THE BEDROCK TOPOGRAPHY OF EDMONTON, THE REASONS WHY THE CITY CHOSE TO CONSTRUCT ITS OWN STORM AND SANITARY TUNNELS, AND THE FINANCIAL FEATURES OF THE OPERATION ARE OTHER ASPECTS DISCUSSED.

Media Info

  • Features: Figures; Tables;
  • Pagination: p. 933-63
  • Serial:
    • Volume: 2

Subject/Index Terms

Filing Info

  • Accession Number: 00236569
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jan 31 1974 12:00AM