Conclusion
Shear tests of experimental blocks under conditions approximating the conditions of placing and curing concrete in the Toktogul dam showed that the strength of the horizontal joints (cohesion) is 11 kg/cm2. The relation between shear stresses and compressive stresses for joints with undisturbed τ1 and disrupted τ2 cohension is close to linear in the interval σ=0–35 kg/cm2; τ1=11.3+1.68σ;τ2=1.67σ. The average value of the resistance coefficient of concrete on concrete for the joints is respectively 1.68 and 1.67.
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Literature Cited
L. A. Tolkachev, “Experience in concreting the Toktogul HES dam,” Gidrotekh. Stroitel'., No. 12 (1971).
P. D. Evdokimov and D. D. Sapegin, Strength, Shear Resistance, and Deformability of the Foundations of Structures on Rock [in Russian], Énergiya, Moscow (1964).
A. E. Minarskii and I. V. Mikhalevskaya, “Investigation of the shear resistance of concrete joints,” in: Papers on Hydraulic Engineering [in Russian], No. 6, VNIIG imeni B. E. Vedeneev, Énergiya, Leningrad (1965).
Additional information
Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 5, pp. 7–9, May, 1974.
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Sudakov, V.B., Minarskii, A.E., Pashchenko, V.I. et al. Shear characteristics of horizontal expansion joints in the Toktogul hydroelectric station dam. Hydrotechnical Construction 8, 401–403 (1974). https://doi.org/10.1007/BF02400037
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DOI: https://doi.org/10.1007/BF02400037