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Depth and pressure of consolidation grouting in pressure tunnels

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Literature Cited

  1. G. G. Khachikyan, “Depth of consolidation grouting in pressure tunnels,” Gidrotekh. Stroitel'., No. 12 (1964).

  2. G. G. Khachikyan, “Value of the consolidation-grouting pressure for pressure tunnels in hydraulic construction,” Gidrotekh. Stroitel'., No. 8 (1970).

  3. V. S. Éristov and A. M. Mazur, Design and Construction of Large Dams, Vol. 1, Subsurface Work and Treatment of Rock Foundations of Dams [in Russian], Énergiya (1966).

  4. Zh. Talobr, Rock Mechanics [in Russian], Gosgortekhizdat (1960).

  5. V. M. Mostkov, Construction of Large-Section Underground Structures [in Russian], Gosgortekhizdat (1963).

  6. P. U. Ponimatkin, “Effective depth of grouting in pressure tunnels,” Gidrotekh. Stroitel'., No. 4 (1969).

  7. M. Masket, Flow of Homogeneous Liquids in a Porous Medium [in Russian], Gostoptekhizdat (1949).

  8. “High-pressure hydraulic tunnels,” VINITI, Gidroénergetika, Seriya Ékspress-Informatsii, NO. 32, Ref. 117 (1967).

  9. “Norms and technical conditions for the design of concrete gravity dams on rock foundations,” SN 123–60. Gosstroiizdat (1961).

  10. V. S. Éristov, “Design and construction of linings of high-pressure tunnels,” Gidrotekh. Stroitel'., No. 11 (1963).

  11. “The pressure shaft of the Kounertal hydroelectric plant and its steel liner,” Ékspress-Informatsiya. VINIFI, Seriya “Gidroénergetika,” No. 17 (1966).

  12. P. U. Ponimatkin, “Analysis of concrete linings of pressure tunnels and shafts by taking into consideration the permeability of the lining,” Énergeticheskie Stroitel'stvo, No. 4 (1969).

  13. A. Cambefort, Principles and Methods of Soil Grouting, Vol. I [Russian translation], No. 71384/8, VINITI (1968).

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Authors
  1. P. U. Ponimatkin
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Additional information

Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 6, pp. 50–52, June, 1971.

From the editors

This article presents a well-founded review of the methods for determining the depth and pressure of consolidation grouting in pressure tunnels, as proposed by the late G. G. Khachikyan (Gidrotekhnicheskoe Stroitel'stvo. No. 12, 1964, and No. 8, 1970), who did not take into consideration the effect of the natural stress state of the rock mass around the tunnel, beyond the limits of the decompression zone resulting from the removal of the rock. As shown in the article by P. U. Ponimatkin, this effect may be large and should be taken into consideration.

However, the method of analysis proposed by P. U. Ponimatkin is not universal, inasmuch as in the case of nonhomogeneous rock, inclined stratification, and tectonic disturbances, the natural stress state of the rock cannot be described by a hydrostatic law, as it is assumed by Comrade Ponimatkin, and everything is thus far more complex. A practical solution of this problem would require experimental work under field and laboratory conditions.

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Ponimatkin, P.U. Depth and pressure of consolidation grouting in pressure tunnels. Hydrotechnical Construction 5, 573–578 (1971). https://doi.org/10.1007/BF02377630

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