Viktor M. Fedorov
Doctor of Sciences (Engineering), Professor of the "Technosphere Safety and Oil and Gas Business" Department, Novocherkassk Engineering and Reclamation Institute named after A.K. Kortunov – branch of Don State Agrarian University.N ovocherkassk, Russian Federation
Improving the operational reliability and safety of channels in precast concrete cladding on substandard aggregates
Issue:
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The article is devoted to the problem of safety and reliability of water management systems. Most of these systems in the North Caucasus are in unsatisfactory condition, which leads to a rise in the groundwater level, salinization and contamination of adjacent lands, flooding of territories, pollution of places of residence and a decrease in the standard of living of the population. For the repair and restoration of systems and
prevention of environmental damage to environmental components, by reducing filtration losses, both under normal operating conditions and under seismic impacts, precast concrete elements on inexpensive non-composite aggregates are proposed. Despite their (aggregates) relatively low quality and availability, concretes and trays, pipes and slabs made of it are characterized by a high resource-saving effect and meet the requirements of safety and reliability. This is achieved by adding a formiate-alcohol plasticizer to the concrete mixture, which has a super-liquefying effect that reduces the water consumption of the concrete mixture (water-reducing effect) and increasing the construction, technical and operational properties, including the reduction of seismic activity. The recommended proposals will significantly reduce the losses of water supplied to consumers, both in normal and extreme operating conditions, prevent flooding, pollution and waterlogging of adjacent territories, and improve the living conditions of the population.
Ensuring the safety and reliability of channels lined with concrete on local aggregates
Issue: #3-2022
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The article is devoted to the problem of
ensuring the safety of the environment. Technological measures are proposed to
prevent environmental damage to environmental components by reducing filtration
losses during water transportation through the channels of water management
systems under normal operating conditions and under seismic effects. Most of
the canals in the Rostov region are in poor condition, which leads to a rise in
the level of groundwater, salinization and waterlogging of adjacent lands,
flooding of territories, pollution of places of residence and a decrease in the
standard of living of the population, destruction of the soil structure, water
erosion and washout. The proposed linings for channels, made of concrete on
inexpensive local aggregates, meet the requirements of safety, seismic resistance
and resource saving. This is achieved by forced compaction of concrete
mixtures, on aggregates with a high content of polluting particles, by pressing
them (mixtures) and (and) rolling in the production of slabs and cladding, and
an additional increase in the strength and performance properties of concrete,
directed, including including, and to reduce the seismic response, is provided
by a decrease in the initial water content of mixtures by adding a formiate-alcohol
plasticizer to its composition. The measures recommended by the authors will
significantly reduce the loss of water supplied to consumers both under normal
and extreme operating conditions, and prevent flooding and pollution of
adjacent areas. Improve the living conditions of the population, stop soil
degradation.