Assessment of seismic resistance of combined tailings dams
Date Issued
2018-07
Author(s)
Petkovski L., Mitovski S.
Abstract
The similarities between the tailings dams and the embankment dams for
water storage have contributed a great number of procedures and techniques in
the design, construction and maintenance of the conventional dams, to be applied
to tailings dams. However, the numerous reports of collapses of the tailings dams
in the last three decades, all over the World, indicate that the structural, (static
and dynamic), filtration, hydrological and hydraulic safety were not controlled with
the same rigor and carefulness – as for the embankment dams. This fact, in part,
results from the long-term construction of the tailings dams, where as a building
material is used sand obtained by separating of the waste material from floatation
process during the exploitation of the mine. In this paper are presented results
from the dynamic analysis and assessment of seismic resistance of the hydro
tailings Topolnica, on the river Topolnica, in the east part of Republic of Macedonia.
It is a tailings dam with a combination of downstream (in the first phase) and
upstream (in the second phase) method of construction, with total height from
the crest to the downstream toe of the dam of 141.2 m.
water storage have contributed a great number of procedures and techniques in
the design, construction and maintenance of the conventional dams, to be applied
to tailings dams. However, the numerous reports of collapses of the tailings dams
in the last three decades, all over the World, indicate that the structural, (static
and dynamic), filtration, hydrological and hydraulic safety were not controlled with
the same rigor and carefulness – as for the embankment dams. This fact, in part,
results from the long-term construction of the tailings dams, where as a building
material is used sand obtained by separating of the waste material from floatation
process during the exploitation of the mine. In this paper are presented results
from the dynamic analysis and assessment of seismic resistance of the hydro
tailings Topolnica, on the river Topolnica, in the east part of Republic of Macedonia.
It is a tailings dam with a combination of downstream (in the first phase) and
upstream (in the second phase) method of construction, with total height from
the crest to the downstream toe of the dam of 141.2 m.
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