Browse > Article
http://dx.doi.org/10.7843/kgs.2007.23.4.149

Side Friction of Deep Foundation for Transmission Tower in Rock  

Kim, Dae-Hong (KEPRI/KEPCO)
Lee, Dae-Soo (KEPRI/KEPCO)
Chun, Byung-Sik (Dept. of Civil Engrg. Hanyang Univ.)
Kim, Byung-Hong (Dept. of Civil Engrg. Hanyang Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.23, no.4, 2007 , pp. 149-160 More about this Journal
Abstract
Six prototype field tests (five 1/8 and one 1/2 scale tests) have been conducted in order to determine the uplift resistance of deep foundation for transmission line structures. Test sites, located in the city of Eumseng in Choongbuk province, are classified as gneiss. These test results reveal failures not along the foundation-rock interface but either along the damaged surrounding rock mass caused by excavation or along the pre-existing rock joint. Test results also show the uplift resistance which is 20 $\sim$ 30% higher than the current design strength of side friction. In addition to fold tests, four concrete core samples between the liner plate and the surrounding rock mass have been obtained from the existing transmission foundations to study the effect of the liner plate which is installed prior to placing concrete. The compressive strength of these concrete core samples shows 63 $\sim$ 72% of the strength at the time of foundation construction. Side frictional resistance based on such less compacted concrete reaches satisfying uplift design strength.
Keywords
Deep foundation; Rock mass; Side friction; Transmission tower foundation; Uplift capacity;
Citations & Related Records
연도 인용수 순위
  • Reference
1 ASTM D1143-81, Standard Test Method for Pile Under Static Axial Compressive Load, Annual Book of ASTM Standards, Vol 04.08, pp.174-184
2 Gupton, C. and Logan, T. (1980), 'Design Guidelines for Drilled Shafts in Weak Rock in South Florida', Annual Meeting of the Florida Branch, ASCE, Miami, FL
3 O'Neill, M. W., Townsend F. C., Hanssan K. M., Buller A. and Chan P. S. (1995), Load Transfer for Drilled Shafts in Intermediate Geomatrials, U. S. Department of Trans- portation, FHWA-RD-95-0000, January
4 Thome, C. P. (1977), The Allowable Loadings of Foundations on Shale and Sandstone in the Sydney Region, Part 3, Field Test Results, Paper Presented to Sydney Group of Aust. Geomechanics Soc., Inst. Engnrs. Aust
5 Tomlinson, M. J. (1995), Foundation Design and Construction 6th edition, Harlow, England : Longman Scientific & Technical ; New York: Wiley
6 김대홍, 홍성연, 김경열, 이대수 (2003), '송전철탑용 현장타설기초의 파괴형태에 관한 실험적 연구', 2003년도 대한토목학회 학술발표회 논문집, pp.3311-3317
7 Goder, H. Q. and Leonard, M. W. (1954), 'Some Tests on Bored Piles in London Clay', Geotechnique, Vol.4, pp.32-41   DOI
8 Williams, A. F. (1980), The Side Resistance of Piles Socketed into Weak Rock, Ph. D. dissertation, Department of Civil Engineering, Monash University, Melbourne, Australia
9 ASTM D3689-90, Standard Test Method for Individual Piles Under Static Axial Tensile Load, Annual Book of ASTM Standards, Vol 04.08, pp.1-11
10 Reynols, R. T. and Kaderabech, T. J. (1980), 'Miami Limestone Foundation Design and Construction', Preprint No. 80-546, South Florida Convention, ASCE
11 Rowe, R. K. and Armitage, H. H. (1984), The Design of Piles Socketed into Weak Rock, Report GEOT-11-84, University of Western Ontario, London, Ont
12 Rogenberg, P. and Jouneau, N. L. (1976), 'Friction and End Bearing Tests on Bedrock for High Capacity Socket Design', Canadian Geotechnical Journal, 13, pp.324-333   DOI
13 Reese, L. C. and O'Neill, M. W. (1988), Drilled Shaft: Construction Procedures and Design Method, Publication FHWA-HI-88-042, Federal Highway Administration, Washington, D.C
14 Day, H. B. (1974), 'Rock Socketed Piles: MMBW Highways Division Practice', Symp. on Rock Socketed Piles, Aust. Geomech. Soc. Vic. Group
15 Pells, P. J. N. and Turner, R. M. (1979), 'Elastic Solutions for the Design and Analysis of Rock Socketed Piles', Canadian Geotechnical Journal, 16, pp.481-487   DOI   ScienceOn