Evaluation of the reliability of a hydrostation machine hall during operation of the outlet

1994 ◽  
Vol 28 (4) ◽  
pp. 222-230 ◽  
Author(s):  
A. V. L'vov ◽  
S. G. Shul'man
Keyword(s):  
Machine Hall

Assessment of the current state of the underground machine hall being constructed at the Rogun hydroelectric station

1992 ◽  
Vol 26 (3) ◽  
pp. 162-167 ◽  
Author(s):  
F. I. Gurtovnik ◽  
O. N. Zolotov ◽  
V. L. Kuperman ◽  
V. M. Mostkov ◽  
L. G. Osadchii
Keyword(s):  
Hydroelectric Station ◽  
Current State ◽  
Machine Hall

Some characteristics of constructing the underground machine hall at the Kolyma hydroelectric station

1990 ◽  
Vol 24 (5) ◽  
pp. 305-313 ◽  
Author(s):  
G. Ya. Gevirts ◽  
V. V. Koleganov ◽  
V. M. Mostkov
Keyword(s):  
Hydroelectric Station ◽  
Machine Hall

scholarly journals ESTIMATED JUSTIFICATION OF TECHNICAL DECISION ON STRENGTHENING REINFORCED CONCRETE MACHINE HALL FLOOR

2019 ◽  
Author(s):  
Oleg D. Rubin ◽  
Anton S. Antonov ◽  
Sergey E. Lisichkin ◽  
Igor V. Baklykov ◽  
Nikolay V. Bekin ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Strain State ◽  
Actual State ◽  
Computational Studies ◽  
Lower Edge ◽  
Stress Strain ◽  
Concrete Floor ◽  
Stress Strain State ◽  
External Reinforcement ◽  
Machine Hall

Introduction. In connection with the long-term operation of hydraulic structures (HPP), the installation of significant temporary loads, the presence of alternating effects on individual structural elements, it is possible to reduce the carrying capacity and strength of reinforced concrete structures. One of the most crucial elements is the reinforced concrete overlap of the machine hall, the work presents field and design studies, a proposal to strengthen the structures with external reinforcement. Materials and methods. The scientific and technical documentation was analyzed, instrumental studies and visual inspections of the state of the structures were carried out, and a 3D mathematical model was developed based on the finite element method. Multivariate non-linear computational studies of the actual stress-strain state of structures have been carried out. Results. Conducted visual and instrumental examination showed the presence of cracking on the lower edge of the reinforced concrete floor of the machine room. The simulation of the actual state of the structures has been carried out; according to the results of calculations, a schematic diagram of the gain of structures has been proposed. Conclusions. As a result of computational studies of stress-strain state, the occurrence of cracks on the lower edge of reinforced concrete floor of the machine hall was confirmed. When applying temporary technological loads to overlap, it is possible to achieve the yield strength of the reinforcement in certain zones. In order to ensure further safe operation of the structures, a conceptual amplification scheme based on the results of stress-strain state calculations has been proposed.

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