Investigation on Pore Water Pressure in Core of Karkheh Dam
Pore water pressure is normally because of
consolidation, compaction and water level fluctuation on reservoir.
Measuring, controlling and analyzing of pore water pressure have
significant importance in both of construction and operation period.
Since end of 2002, (dam start up) nature of KARKHEH dam has
been analyzed by using the gathered information from
instrumentation system of dam. In this lecture dam condition after
start up have been analyzed by using the gathered data from located
piezometers in core of dam. According to TERZAGHI equation and
records of piezometers, consolidation lasted around five years during
early years of construction stage, and current pore water pressure in
core of dam is caused by water level fluctuation in reservoir.
Although there is time lag between water level fluctuation and results
of piezometers. These time lags have been checked and the results
clearly show that one of the most important causes of it is distance
between piezometer and reservoir.
[1] A. Mahbobi. Applied soil physics. Boali University. Hamedan.2005.
pp.68-70.
[2] E.E. Alonso. D, Lautrin. D. Poulain, P. Brunel. H. Miller. P. Vigneau
and M. Lino. Construction Pore Pressures in Earth dams. In Conf. 1995
(in French), Unsaturated Soils. Proc. 1st Int. Conf. on Unsaturated
Soils (UNSAT 95), Paris, France (ed. Alonzo, E.E. and Delage, P.),
Rotterdam: Balkema, Vol. 1, pp. 251-256.
[3] G. Aghajani. General Irrigation, Unpublished.
[4] H. Rahimi. Earth dams, Tehran University, Tehran.1989.
[5] J.K. Mitchell. Components of pore pressure and their engineering
significance. Ninth national conf. on clays and clay minerals:
university of California, Berkley. 1998.
[6] J.W.Hilf . Estimating Construction Pore Pressure in Rolled Earth Dams,
Porc.ΙΙ Int. 1948.Conf. on Soil Mech. and Found. Eng, Vol. ΙΙΙ, p.p.
234-240.
[7] K.Najm. Instrument in dams. Forth conference on dam structure,
Tehran.1999.
[8] K.Terzaghi. Theoretical soil mechanics, Willey, New York,1962.pp.
304-305.
[9] M. Braja. Advanced Soil Mechanics, New York. 2008.
[10] M. Pakzad. Evaluation of pure water pressure in Karkheh dam. in Forth
conf.1999. On dam structure, Tehran.
[11] M. Pakzad. "Report of Karkheh dam structure", Unpublished.
[12] R, Ebnjalal. Soil Mechanics, Chamran University, Ahwaz, 2006, pp.
123-125.
[1] A. Mahbobi. Applied soil physics. Boali University. Hamedan.2005.
pp.68-70.
[2] E.E. Alonso. D, Lautrin. D. Poulain, P. Brunel. H. Miller. P. Vigneau
and M. Lino. Construction Pore Pressures in Earth dams. In Conf. 1995
(in French), Unsaturated Soils. Proc. 1st Int. Conf. on Unsaturated
Soils (UNSAT 95), Paris, France (ed. Alonzo, E.E. and Delage, P.),
Rotterdam: Balkema, Vol. 1, pp. 251-256.
[3] G. Aghajani. General Irrigation, Unpublished.
[4] H. Rahimi. Earth dams, Tehran University, Tehran.1989.
[5] J.K. Mitchell. Components of pore pressure and their engineering
significance. Ninth national conf. on clays and clay minerals:
university of California, Berkley. 1998.
[6] J.W.Hilf . Estimating Construction Pore Pressure in Rolled Earth Dams,
Porc.ΙΙ Int. 1948.Conf. on Soil Mech. and Found. Eng, Vol. ΙΙΙ, p.p.
234-240.
[7] K.Najm. Instrument in dams. Forth conference on dam structure,
Tehran.1999.
[8] K.Terzaghi. Theoretical soil mechanics, Willey, New York,1962.pp.
304-305.
[9] M. Braja. Advanced Soil Mechanics, New York. 2008.
[10] M. Pakzad. Evaluation of pure water pressure in Karkheh dam. in Forth
conf.1999. On dam structure, Tehran.
[11] M. Pakzad. "Report of Karkheh dam structure", Unpublished.
[12] R, Ebnjalal. Soil Mechanics, Chamran University, Ahwaz, 2006, pp.
123-125.
@article{"International Journal of Architectural, Civil and Construction Sciences:64979", author = "Bahar Razavi and Mansour Parehkar and Ali Gholami", title = "Investigation on Pore Water Pressure in Core of Karkheh Dam", abstract = "Pore water pressure is normally because of
consolidation, compaction and water level fluctuation on reservoir.
Measuring, controlling and analyzing of pore water pressure have
significant importance in both of construction and operation period.
Since end of 2002, (dam start up) nature of KARKHEH dam has
been analyzed by using the gathered information from
instrumentation system of dam. In this lecture dam condition after
start up have been analyzed by using the gathered data from located
piezometers in core of dam. According to TERZAGHI equation and
records of piezometers, consolidation lasted around five years during
early years of construction stage, and current pore water pressure in
core of dam is caused by water level fluctuation in reservoir.
Although there is time lag between water level fluctuation and results
of piezometers. These time lags have been checked and the results
clearly show that one of the most important causes of it is distance
between piezometer and reservoir.", keywords = "Earth dam, Reservoir, Piezometer, Terzaghi,Consolidation", volume = "5", number = "11", pages = "651-4", }