Наукові горизонти (May 2019)

EXPERIENCE IN THE PROTECTION OF RURAL SETTLEMENTS FROM FLOODING IN THE IRRIGATED ZONE

  • D. Savchuk,
  • O. Kharlamov,
  • I. Kotykovych

DOI
https://doi.org/10.33249/2663-2144-2019-78-5-95-104
Journal volume & issue
Vol. 78, no. 5
pp. 95 – 104

Abstract

Read online

The experience of engineering protection of the territories of rural settlements usin systematic closed horizontal drainage with a pumping station for pumping drainage flow into a water receiver as a basis for scientific substantiation and improvement of drainage for irrigation in drainage areas in the southern region is summarized. The studies were conducted on a pilot drainage site typical for the southern region, which is located on the Kakhovsky irrigated area in the village of Krestovka, Chaplynsky district, Kherson region. For natural and water conditions, the Krestovka belongs to rural settlements that suffer from surface flooding and underflooding with groundwater. It was determined that horizontal drainage provided reliable protection of rural areas from flooding, with the exception of periods with intense precipitation, when flood areas were formed in areas of lowering terrain, emergency situations arose and living conditions became much more complicated. The average annual depths of the groundwater levels on the background of drainage mainly fluctuated within 2-4 m and did not exceed the critical levels. The research results showed that the village protection system remains imperfect and requires improvement. Under such conditions, with the complication of the hydrometeorological situation, which lately more and more often arise as a result of climate change, excessive situations can recur. To improve the system of protection of rural areas, a complex of structures and measures has been developed, which includes the construction of gravity drainage and drainage systems, discrete backfilling with gravel of drainage trenches, management of irrigation plots and lands, monitoring of hydrogeological and land improvement status of rural areas. Similar problems of protection here are flooding and underflooding using closed horizontal drainage systems with pumping stations, characters for Kakhovsky, North Rogachinsky, Krivorozhzsky and other irrigated arrays of the southern region.

Keywords