Lyapichev Yu.P. Hydrological and technical safety of hydraulic structures

Program curriculum of the subject:

• The main causes of accidents of embankment and concrete dam in terms of time of their construction in

different countries (as per statistics of the International Commission on Large Dams), examples of the

accidents and failure of large dams with great economic and social damage.

• Fundamentals of the methodology of level of safety assessment of Hydraulic Structures (HS), the structure

of the safety factors, tables for ranked assessment of factors and level of safety of HS. The methodology is

intended for deterministic assessment of the possible risk of accidents and state of HS during their operation

and it is used for the preparation of safety declarations of HS and for their observations.

• Fundamentals of the methodology for determining the criteria of safety assessment of HS including the

determination of criteria values of diagnostic indicators of their state during operation, prognostic

mathematical models of HS, fixing procedure and clarification of criteria of their safety at the stages of design

and operation.

• Detailed features of the determination of criteria values of the various diagnostic indicators of concrete and

earthfill dams: their settlements and horizontal displacements, cracking of impermeable elements of earthfill

dams, seepage strength and discharges in these dams and their foundation. Examples of determination of

criteria values of diagnostic indicators of concrete and earthfill dams of Votkinsk hydropower plant on Volga.

• Fundamentals of the probability analyses for quantitative assessment of the safety of dams (analysis of the

degree of risk of dam accidents), formulations of mathematical models of probability of dam accidents.

• Fundamentals of the method of analysis of the dam-break wave: Selection of the scenario of dam accident,

the method of analysis of the dam-break wave, input data for the modeling of the wave, the use of software

programs for analysis of the dam-break wave and its propagation in downstream zone.

• Fundamentals of the methodology for determining approximate and extended assessment of the economic ,

social and environmental damages caused by the dam-break wave (dam failures), the detailed example of

the extended assessment of these damages.