Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 2005.03a
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- Pages.687-696
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- 2005
Stability evaluation of foundation settlement of power transmission tower
송전철탑의 기초침하에 대한 안정성 평가
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Lee, Dae-Soo
(Korea Electric Power Research Institute) ;
- Cho, Hwa-Kyung (Korea Electric Power Research Institute) ;
- Kim, Dae-Hong (Korea Electric Power Research Institute) ;
- Ham, Bang-Uk (Korea Electric Power Corporation)
- Published : 2005.03.25
Abstract
Safety diagnosis was conducted to evaluate the long-term stability evaluation of power transmission tower of which deformation of the upper structural elements occurred. To assess the cause of the structural deformation, field investigation including BIPS, down-hole test, concrete pile coring and finite element analysis were carried out. From these studies, the major cause of deformation was found due to the heavily fractured layer and weathered soil topography at the pile tip area. The cement-milk grouting method was proposed to reinforce these weak zone around the pile tip area. Also, the increase of cross-section and stiffness for steel members of upper tower structures was suggested. Instrumental monitoring was proposed as well to verify reinforcing effect.