SELECTION AND PERFORMANCE OF ANCHORS FOR GUYED TRANSMISSION TOWERS

INFORMATION IS PRESENTED ON THE SELECTION AND PERFORMANCE OF ANCHORS FOR GUYED TRANSMISSION TOWERS. THE INFORMATION USED WAS OBTAINED DURING THE DESIGN AND CONSTRUCTION OF TWO TRANSMISSION LINES, EACH OVER 540 MILES (>869 KM) LONG IN BRITISH COLUMBIA. FIVE ANCHORS HAVE BEEN DESIGNED AND TESTED: (1) BURIED PLATE WITH COMPACTED BACKFILL, (2) BURIED STEEL MAT OR GRILLAGE WITH LOOSE BACKFILL, (3) CAST-IN-PLACE CONCRETE WITH LOOSE BACKFILL, (4) POWER INSTALLED HELICAL, AND (5) GROUTED ROD ANCHORS. THE HIGHLY VARIABLE SOIL AND ACCESS CONDITIONS ALONG THE LINE NECESSITATED AN ANCHOR THAT COULD ECONOMICALLY BE INSTALLED IN NEARLY ALL SOIL TYPES AND BY ORDINARY CONSTRUCTION EQUIPMENT THAT COULD EASILY MOVE BETWEEN TOWER SITES IN RUGGED TERRAIN. THE CONSERVATIVELY DESIGNED, CAST-IN-PLACE CONCRETE ANCHOR WAS FOUND TO SATISFY THESE REQUIREMENTS AT REASONABLE COST. POWER-INSTALLED HELICAL ANCHORS AND GROUTED ROD ANCHORS MAY PROVIDE AN ECONOMICAL ANCHOR IN MORE UNIFORM SOIL CONDITIONS AND WHERE EASIER ACCESS CONDITIONS EXIST. HOWEVER THESE ANCHORS REQUIRE MORE DETAILED SOIL EXPLORATION AND CONTRACT INSPECTION THAN THE CAST-IN-PLACE CONCRETE ANCHORS. /CGRA/

• Supplemental Notes:
  • Vol 6, No 1, PP 119-137, 7 FIG, 3 TAB, 2 PHOT
• Authors:
  • Robinson, K E
  • TAYLOR, H
• Publication Date: 1969-5

Media Info

• Serial:
  • CANADIAN GEOTECHNICAL JOURNAL
  • Publisher: National Research Council of Canada

Subject/Index Terms

• TRT Terms: Arrester wires; Backfilling; Cast in place structures; Concrete; Mat footings; Performance; Rods; Structural plates; Towers; Transmission lines
• Uncontrolled Terms: Anchors; Guyed towers; Mats; Plates; Selecting
• Old TRIS Terms: Backfills; Helices
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00208207
• Record Type: Publication
• Source Agency: CANADIAN GOOD ROADS ASSOCIATION
• Files: TRIS
• Created Date: Apr 16 1970 12:00AM