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Research of main analysis parameters of infiltration areas connecting to the storm drainage system

Shevchuk O., Tkachuk O.

Budownictwo i Inżynieria Środowiska

2017

Vol. 8, no. 4

203--209

Infiltration areas with permeable pavements are one of the most effective modern methods of stormwater management on urban areas that permit accumulation of rainfall directly at place of precipitation. The paper justifies the expediency of inclusion of infiltration areas in the storm drainage system to ensure the effective stormwater management on urban areas. Thus, the aim of this paper is to calculate infiltration areas’ basic parameters following the experimental and theoretical studies undertaken by authors. Based on these studies, a mathematical model of filling and emptying of base layer of infiltration areas by connecting them to the rain drainage systems is determined. As a result the formulae of calculation of the stormwater volume that detained on the infiltration areas, and the drainage discharges that came in the rain drainage system are received and verified. Moreover, obtained results permit to realize stormwater management on urban areas that depend on parameters of infiltration areas and pipe capacity of drainage system.

A Hydrophysical Analysis of Urban Surface Runoff, Channel Characteristics, and the Incidence of Flood and Erosion Over the Calabar Drainage Area, Nigeria.

Ugbong I. A., Budagov I. V.

Journal of Ecological Engineering

2016

Vol. 17, nr 3

30--40

Hydro-physical processes operating in the Calabar drainage area were analyzed by estimating the volume of surface runoff carried in each basin and sub-basin, using field measurements of flow velocities in conjunction with the “Rational Method” mathematical model proposed by civil and environmental engineers. It was found that run-off flow is affected by at least three factors which either produce floods or erosion conditions. The factors include size of catchment areas, gradient and lengths of flow channels. The Multiple Regression statistic was used to test these relationships. The results showed a strong statistical correlation among these variables, as well as between these variables and flow characteristics. It was found that for all the basins, runoff volume increased with increasing surface area of the catchment; just as areas with lower elevations register higher flow volume accompanied by flooding; with a reversed condition in higher ground where higher velocities are found with resultant erosion conditions. Also channels with considerable lengths receive higher flows along their courses downstream, and thus produce floods. It was therefore, recommended that in addition to the six major drainage channels recommended for the area, each channel and each segment of a channel should be determined by its gradient, drainage area, length of flow channel.