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of structural components in the powerhouse occurred as a result of failure of the No. 2 generating set (GS-2) at the Sayano-Shushenskaya HPP (Fig. 1). Figure 2 shows the cross section of the powerhouse.The monolithic reinforced-concrete covers of GS-2, GS-7, and GS-9 at elevation 327.0 m, and the columns supporting the monolithic covers of these sets and the walls of the annular shafts of the generators at elevations from 319.8 to 327.0 m were destroyed as a result of the failure (Fig. 3). The enclosing MARKhI structures of the machine room above GS-2, GS-3, and GS-4 were totally destroyed. Many of the cantilevered slabs along the walls of the lower pool had been completely demolished or deflected, and a large number of the second stage structures had failed; and, stairways were damaged by rubble-laden water flows.Coworkers of the JSC VNIIG im. B. E. Vedeneeva participated in a study conducted by special commissions to evaluate the situation at the HPP as early as several days after the failure, while a diagnostic-monitoring group from the VNIIG in conjunction with representatives of the SayanoShushenskaya HPP, the publicly owned joint-stock company Lengidroproekt, and the Siberian Scientific-Research Institute of Hydraulic Engineering has been conducting a techni-

Relevance. As part of the implementation of the Federal Law No. 117-FZ “On the Safety of Hydraulic Structures”, it is necessary to continuously monitor the state of hydraulic structures and related facilities by equipping with control and measuring instruments. The development of modern computer complexes allows us to carry out and predict the state of objects by combining computational research and field observations. The work is aimed at organizing a comprehensive assessment of the state of the HPS and ensuring the safety of existing and projected mutually influential complexes. Aims of research. Improving the safety of the operated (under construction) complex of interfering hydraulic structures. Assessment of sufficient and highquality engineering and repair work carried out on the HPS. Development of recommendations for improving the efficiency of construction of new and modernization of operated hydropower facilities. HPS on the example of the Zagorsk HPS. Methods. Representation of the interaction ideology of various software systems of mathematical modeling, using control and measuring instruments data for calibration and verification of mathematical models. Results. The structure of the HSC calculation module was updated, systematization of the calculation models was carried out, interaction and transfer of the initial data to the calculation module of the software and hardware complex was revealed. The implementation of scientific research is aimed at improving the safety of the complex hydraulic structures.

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