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Hydraulics. Engineering hydrology . Hydraulic engineering

THREE-DIMENSIONAL GEOFILTRATIONAL MODEL OF THE ROGUN HYDRO POWER PLANT CONSTRUCTION SITE

Vestnik MGSU 5/2017 Volume 12
  • Khokhotva Sergey Nikolaevich - Branch of JSC «Planning and Surveying Scientific Research Institute "Gidroproekt" named after S.Ya. Zhuk» - "Center for Geodynamic Observations in the Energy Industry" (Branch of JSC"Gidroproekt Institute -"CSGNEO") head of the Seismic Capacity Department, Branch of JSC «Planning and Surveying Scientific Research Institute "Gidroproekt" named after S.Ya. Zhuk» - "Center for Geodynamic Observations in the Energy Industry" (Branch of JSC"Gidroproekt Institute -"CSGNEO"), 2 Volokolamskoe shosse, Moscow, 125993, Russain Federation.
  • Orekhov Vyacheslav Valentinovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, Chief Scientific Officer, Scientific and Technical Center “EXPO”, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Bykovsky Dmitry Vladimirovich - the Moscow Branch of ENEX (OJSC) Сandidate of Technical Sciences, project chief engineer, the Moscow Branch of ENEX (OJSC), 7A, bdg 9, Stroitel’ny pr., Moscow, 125362, Russian Federation.

Pages 512-518

The article deals with technique of creation and results of calculations of the three-dimensional geofiltrational model of the Rogun HPP construction site. When performing works on creation of the Rogun HPP three-dimensional geofiltration model, geological and hydrogeological conditions of the Rogun HPP construction site were analyzed. They showed that the construction site consists mostly of fractured rocks of various weathering degrees. In terms of preservation, four preservation zones were identified in the rock mass. These zones define the features of hydrogeological conditions that have emerged in the area of construction. Calculation results illustrated the absence of seepage areas on the lower slope of dam; this is the indication of normal operation of the dam impervious circuit. The drainage system of the underground hydropower plant has a high efficiency. Operation of the drainage galleries complex leads to a significant reduction of piezometric pressure on roofs of the machine and transformer halls. Above the underground structures a completely drained area is formed. Completed forecast calculations on geofiltration model of the Rogun hydropower plant determine the hydrostatic pressure and piezometric pressure at any point of the modeled area. These data can be used as loads while designing of lining of underground workings.

DOI: 10.22227/1997-0935.2017.5.512-518

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