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ASSESSMENT AND CONTROL OF STRESS STATE OF WATERWORKS IN SERVICE
Abstract
When operating waterworks, it is required to refine the data on actual stresses in different structural elements of the facilities. The authors put forward a nonconventional approach to expanding the waterworks observation network. The quantitative assessment of stresses in a structural element at the given moment of time is performed using borehole techniques of geomechanics. Later on, the change in the stresses and deformations is controlled based on the data on deformation of sidewalls and damage of galleries under mining or industry impact. The elements of the proposed approach have been approved in terms of the concrete dam of the Sayano-Shushenskaya hydroelectric power station. The article shows that the actual experience and methods of arranging the monitoring of technical state of construction elements in service using the package of techniques proposed for experimental evaluation of actual stresses and subsequent deformation of concrete allow the satisfactory stress state control in the sites where there is no or impossible to install instrumentation.
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References6
Bryzgalov V.I., Twenty-Years Experience of Operation of the Sayano-Shushenskaya Hydroelectric Project, Hydroelectric Engineering Journal, Russia, issue 9, 1998.
Kuzmin K.K., Some Issues Concerned with the Stress State and Reliability of Sayano-Shushenskaya Hydroelectric Plant, Hydroelectric Engineering Journal, Russia, issue 9, 1998.
Kurlenya M.V., Baryshnikov V.D., Gakhova L.N., An Approach to Arrangement and Implementation of Stress State Control at a Waterworks, Hydroelectric Engineering Journal, Russia, issue 2, 1998.
Baryshnikov V.D., Baryshnikov D.V., Instrumental measurement of Stresses in Concrete, Geodynamic and Stress State of the Earth’s Interior: XX International Conference Proceedings, Russia, 2013.
Baryshnikov V.D., Bryzgalov V.I., Bulatov V.A., Gakhova L.N., Stress State Control at the Dam of Sayano-Shushenskaya Hydroelectric Plant, Hydroelectric Engineering Journal, Russia, issue 10, 2000.
Baryshnikov V.D., Gakhova L.N. Stress State Control of Concrete Dams during Operation, Hydraulic Power Plant in the 21st Century: II All-Russian Conference Proceedings, Russia, 2015.
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Number of times cited according to Crossref: 1
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