Rock socket transmission line foundation performance

Author

DiGioia, A.M., Jr. ; Rojas-Gonzalez, L.F.

Author_Institution

GAI Consultants Inc., Monroeville, PA, USA

Volume

9

Issue

3

fYear

1994

fDate

7/1/1994 12:00:00 AM

Firstpage

1570

Lastpage

1576

Abstract

A major goal of overhead transmission line design is to achieve a minimum cost for a given level of reliability and safety. The greatest uncertainty in this process is in foundation design. Recognizing this opportunity to improve the economics of transmission line design, the Electric Power Research Institute (EPRI) has sponsored, since 1977, a comprehensive program of activities in foundation design. Since little high quality foundation test data existed, a task involved performing well documented full-scale load tests of drilled shafts and direct embedment pole foundations for single transmission line poles partially or totally socketed in rock and subjected to high lateral forces and overturning moments. A summary of the results obtained for fourteen load tests is presented. Based on the load tests, a provisional design guideline is also proposed

Keywords

economics; poles and towers; EPRI; Electric Power Research Institute; direct embedment pole foundations; drilled shafts; high lateral forces; load tests; overhead transmission line design; overturning moments; reliability; rock socket transmission line foundation; safety; single transmission line poles; Costs; Performance evaluation; Power generation economics; Power transmission lines; Safety; Shafts; Sockets; Testing; Transmission lines; Uncertainty;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.311208

Filename

311208