Conclusion
The developed technique of predicting rock pressure and monitoring its manifestation in the lining by geophysical methods was introduced on the construction of the discharge tunnel of the Zhinvali hydrostation on stretches of argillaceous rocks with an intense rock pressure. The use of the set of geophysical methods made it possible during construction to refine the engineering-geological conditions and to give a prediction of the possible rock pressure on the undriven stretch of the tunnel route, in conformity with which the design of the lining was changed. Routine monitoring of manifestations of rock pressure and effectiveness of the strengthening measures on stabilizing deformations of the mass and lining was organized during the tunneling operations.
The given data indicate the practical possibilities of combined geophysical monitoring during construction of underground structures in naturally stressed masses under complex engineering-geological conditions.
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Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 3, pp. 24–27, March, 1991.
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Ezerskii, M.G., Rudyak, M.S. & Kobaladze, K.V. Prediction and monitoring of rock pressure in the discharge tunnel of the Zhinvali hydro development by geophysical methods. Hydrotechnical Construction 25, 134–140 (1991). https://doi.org/10.1007/BF01423975
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DOI: https://doi.org/10.1007/BF01423975