KSCE Journal of Civil and Environmental Engineering Research (대한토목학회논문집)

Korean Society of Civil Engeneers (대한토목학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on the Face Slab Deformation of Concrete Faced Rockfill Dams During Initial Impoundment

초기 담수 중 콘크리트 표면차수벽형 석괴댐의 슬래브 거동에 관한 연구

  • Received : 2014.07.18
  • Accepted : 2014.12.29
  • Published : 2015.02.01
Download PDF
⟨ Previous Next ⟩

Abstract

Concrete-Face Rock-Fill Dams (CFRDs) are rock-fill dams with watertight-concrete slabs on its upstream slope instead of its central earth cores. The design for CFRDs are still largely empirical and typically based on past experiences. This paper presents a description of the concrete face slabs and leakage behaviors of two post-constructed CFRDs based on the data gathered through instrumentation during the initial impoundment. The results show that the strain on the concrete face slab and the horizontal displacements of the vertical slab joints are slightly affected by both the seasonal temperature change and water loading during the initial impoundment. The deformation of perimetric joints are less affected by the temperature change, however it is significantly affected by the water loading during the initial impoundment. The leakage rate is significantly affected by the hydrostatic load and the deformation of the perimetric joints.

차수기능을 점토 코아 대신 상류사면의 콘크리트 슬래브로 수행하는 콘크리트 표면차수벽형 석괴댐의 설계는 이론보다는 사례와 경험에 크게 의존한다. 본 연구에서는 두 개의 CFRDs에서 준공 후 초기 담수기간에 계측된 데이터를 근거로 콘크리트 슬래브와 누수량 거동을 분석하였다. 분석결과 슬래브의 변형률과 수직이음부의 수평변위는 미미하게 계절적인 온도 변화와 저수위면 증가에 의한 담수하중의 영향을 받고, 주변이음부의 변형은 온도 변화의 영향은 미미하고 담수하중의 영향을 크게 받는 것으로 나타났다. 그리고 누수량은 담수하중에 따른 주변이음부의 변형에 의한 영향을 크게 받는 것으로 나타났다.

Keywords

References

  1. Amaya, F. and Marulanda, A. (1985). "Golilla dam: Design, Construction and Performance." Proc., Symp. on Concrete Face Rockfill Dams: Design, Construction and Performance, ASCE, New York, pp. 98-120.
  2. Arrau, L., Ibarra, I. and Noguera, G. (1985). "Performance of COGOTI dam under seismic loading." Proc., Symp. on Concrete Face Rockfill Dams: Design, Construction and Performance, ASCE, New York, pp. 1-14.
  3. Casinader and Watt (1985). "Concrete face rockfill dams of the Winneke project." Proc., Symp. on Concrete Face Rockfill Dams-Design, Construction and Performance, ASCE, New York, pp. 140-162.
  4. Clements, R. P. (1984). "Post-construction deformation of rockfill dams." Journal of Geotechnical Engineering, Vol. 110, No. 7, pp. 821-840. https://doi.org/10.1061/(ASCE)0733-9410(1984)110:7(821)
  5. Cooke, J. B. and Sherard, J. L. (1987). "Concrete face rockfill dam: II design." Journal of Geotechnical Engineering, Vol. 113, No. 10, pp. 1113-1132. https://doi.org/10.1061/(ASCE)0733-9410(1987)113:10(1113)
  6. Fitzpatrick, M. D. (1986). "Discussion of progress in rockfill dams." Journal of Geotechnical Engineering, Vol. 112, No. 2, pp. 221-223. https://doi.org/10.1061/(ASCE)0733-9410(1986)112:2(221)
  7. Fitzpatrick, M. D., Cole, B. A., Kinstler, F. L. and Knoop, B. P. (1985). "Design of concrete-faced rockfill dams." Proc., Symp. on Concrete Face Rockfill Dams: Design, Construction and Performance, ASCE, New York, pp. 410-434.
  8. Hacelas, J. E., Ramirez, C. A. and Regalado, G. (1987). "Discussion of design of concrete-faced rockfill dams." Journal of Geotechnical Engineering, Vol. 113, No. 10, pp. 1182-1187. https://doi.org/10.1061/(ASCE)0733-9410(1987)113:10(1182)
  9. Hunter, G. and Fell, R. (2003). "Rockfill modulus and settlement of concrete face rockfill dams." Journal of Geotechnical and Geoenvironmental Engineering, Vol. 129, No. 10, pp. 909-917. https://doi.org/10.1061/(ASCE)1090-0241(2003)129:10(909)
  10. Hunter, G. J. (2003). The pre- and post-failure deformation behavior of soil slopes, Ph.D. Thesis, University of New South Wales, Australia.
  11. Khalid, S., Singh, B., Nayak, G. C. and Jain, O. P. (1990). "Nonlinear analysis of concrete face rockfill dam." Journal of Geotechnical Engineering, Vol. 116, No. 5, pp. 822-837. https://doi.org/10.1061/(ASCE)0733-9410(1990)116:5(822)
  12. Leps, T. M., Cashatt, C. A. and Janopaul, R. N. (1985). "New Exchequer dam, California." Proc., Symp. on Concrete Face Rockfill Dams: Design, Construction and Performance, ASCE, New York, pp. 15-26.
  13. Massiera, M. and Hammamji, Y. (2007). "Stresses and deformation in concrete face rockfill dams on soil foundations." Workshop on High Dam Know-How, Yichang, China, pp. 56-66.
  14. Materon, B. (1985). "Alto Anchicaya dam: ten years performance." Proc., Symp. on Concrete Face Rockfill Dams: Design, Construction and Performance, ASCE, New York, pp. 73-87.
  15. Materon, B. (2007). "State of art of compacted concrete face rockfill dams." Workshop on High Dam Know-How, Yichang, China, pp. 4-10.
  16. Materon, B., Cruz, P. T. da, and Freitas, M. S. (2008). "Design criteria for CFRD." Proceedings of Charrette on Key Technology for High CFRD Construction, Hong Kong, China, pp. 3-25.
  17. Millet, J. C., Louis, F. and Robert, F. (1985). "Design, Construction & performance of fades dam." Proc., Symp. on Concrete Face Rockfill Dams: Design, Construction and Performance, ASCE, New York, pp. 27-39.
  18. Sherard, J. L. and Cooke, J. B. (1987). "Concrete-face rockfill dam: I. Assessment." Journal of Geotechnical Engineering, Vol. 113, No. 10, pp. 1096-1112. https://doi.org/10.1061/(ASCE)0733-9410(1987)113:10(1096)
  19. Uddin, N. and Gazetas, G. (1995). "Dynamic response of concrete-faced rockfill dams to strong seismic excitation." Journal of Geotechnical Engineering, Vol. 121, No. 2, pp. 185-197. https://doi.org/10.1061/(ASCE)0733-9410(1995)121:2(185)
  20. Won, M. S. and Kim, Y. S. (2008). "A case study on the postconstruction deformation of concrete face rockfill dams." Canadian Geotechnical Journal, Vol. 45, pp. 845-852. https://doi.org/10.1139/T08-020
  21. Xing, H.-F., Gong, X.-Y., Zhou, X.-G. and Fu, H.-F. (2006). "Construction of concrete-faced rockfill dams with weak rocks." Journal of Geotechnical and Geoenvironmental Engineering, Vol. 132, No. 6, pp. 778-785. https://doi.org/10.1061/(ASCE)1090-0241(2006)132:6(778)