Granular backfill selection for direct embedded poles

Author

DiGioia, Anthony, Jr. ; Hirany, Anwar ; Newman, F. Barry ; Rose, Andrew T.

Author_Institution

GAI Consultants Inc., Monroeville, PA, USA

fYear

1998

fDate

26-30 April 1998

Firstpage

56

Lastpage

61

Abstract

The ultimate capacity and moment-displacement behavior of direct embedded transmission line pole foundations are dependent on the strength and deformation properties of the backfill material placed in the annulus surrounding the pole. This paper summarizes research conducted to measure: the strength and deformation properties of granular backfill materials; and their influence on direct embedded pole foundation behavior. The research found that compacted well-graded granular backfills had the greatest stiffness and strength. The degree of compaction has a greater influence on stiffness than strength.

Keywords

building; erection; poles and towers; power overhead lines; compaction degree; deformation properties; direct embedded pole foundations; granular backfill selection; overhead transmission lines; research; stiffness; strength properties; Friction; Goniometers; Grain size; Particle measurements; Shape; Soil measurements; Stress; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission & Distribution Construction, Operation & Live-Line Maintenance Proceedings, 1998. ESMO '98. 1998 IEEE 8th International Conference on

Conference_Location

Orlando, FL, USA

Print_ISBN

0-7803-4883-4

Type

conf

DOI

10.1109/TDCLLM.1998.668332

Filename

668332