DBPapers
DOI: 10.5593/sgem2017/12/S02.012

ASSESSMENT AND CONTROL OF STRESS STATE OF WATERWORKS IN SERVICE

V.D. Baryshnikov, D. Baryshnikov, L.N. Gakhova
Sunday 10 September 2017 by Libadmin2017

References: 17th International Multidisciplinary Scientific GeoConference SGEM 2017, www.sgem.org, SGEM2017 Conference Proceedings, ISBN 978-619-7105-99-5 / ISSN 1314-2704, 29 June - 5 July, 2017, Vol. 17, Issue 12, 87-94 pp, DOI: 10.5593/sgem2017/12/S02.012

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.

Keywords: waterworks, concrete dam, stress, deformation