The method of accounting infiltration of atmospheric precipitation to calculate drainage facilities
Journal Title: Metallurgical and Mining Industry - Year 2017, Vol 9, Issue 1
Abstract
Due to changes in the global climate of the planet, increasing the content of atmospheric moisture, the intensity and duration of precipitation throughout the year, it is proposed that the calculations should be performed separately for each of the three periods: autumn period of initial accumulation of moisture; spring period of thaw and saturation; summer period of heavy rainfalls events. One of the main reasons of destruction of road coating is overmoistening of the soil of earth bed and road base due to the unsatisfactory state of drainage and drainage facilities. The investigation is devoted to the problems of designing drainage structures. This paper proposes a method for calculating the amount of water ingressing the drainage layer by infiltration of atmospheric precipitation. To improve the structural strength of the road, fast and continuous removal of water from porous layers of road covering should be provided. The delay in water diversion reduces the bearing capacity of soil foundation and as a result, decreases the structural strength in general. The arrangement of continuous drainage layer under the road coating allows collecting excess moisture that enters the drainage layer for the entire year.
Authors and Affiliations
Olena Slavinska, Vyacheslav Savenko, Alina Kvatadze
Keywords
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