Experimental investigation of connected foundation for transmission tower structure using field model load tests in soft clayey soils

Doohyun Kyung, Donggyu Park, Garam Kim, Incheol Kim, Junhwan Lee

Research output: Contribution to conferencePaper

Abstract

The transmission tower structure consists of overhead power lines, steel-tower structure and lower foundation parts at each corner of the tower. Various types of foundations are used to support the upper tower structure depending on local soil condition. Pile foundation is usually adopted in soft clayey soils, as there are issues of instability problems such as insufficient load carrying capacity and large differential settlements. For such cases, connected foundation is an effective option, which can improve overall mechanical performance of transmission tower structure. In the present study, results obtained from a series of model load tests are presented to analyze the improved performance of connected foundation for transmission tower structures. Focus was given to changes in the load carrying capacity and differential settlement. The effects of load direction and connection-beam property were addressed in the analyses. The load carrying capacity and differential settlement noticeably changed with the use of connected foundation. Based on the test results, a methodology for the design application of connected foundation is presented. The validity of the method was checked with field test results.

Original languageEnglish
Pages3011-3014
Number of pages4
Publication statusPublished - 2017 Jan 1
Event19th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2017 - Seoul, Korea, Republic of
Duration: 2017 Sep 172017 Sep 22

Other

Other19th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2017
CountryKorea, Republic of
CitySeoul
Period17/9/1717/9/22

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology

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  • Cite this

    Kyung, D., Park, D., Kim, G., Kim, I., & Lee, J. (2017). Experimental investigation of connected foundation for transmission tower structure using field model load tests in soft clayey soils. 3011-3014. Paper presented at 19th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2017, Seoul, Korea, Republic of.