Evaluation of Drainage Systems in Sekarbela Area and its Surroundings
Journal Title: International journal of Emerging Trends in Science and Technology - Year 2018, Vol 5, Issue 11
Abstract
Floods that happened in some place of Mataram City in December 2016 at Area of Sekarbela generate many question in society, what becoming cause of that floods, is purification because high rainfall, lack of urban drainage, the stuffing up of drainage effect of garbage or something else. Intention of this research is to calculate run off volume in channel of Sekarbela and its surroundings, and evaluate the condition of drainage channel eksisting in area of Sekarbela and its surroundings. Method the used to calculate run off volume with Rational method and Routing wirh Kinematic Wave manually and use model software of SWMM. Data which used in this analysis for example Intensity Rain, Large of Catchment Area, Condition of Catchment Area, topography or inclination of Catchment Area. Rain intensity the used is 5 Year because channel which in evaluation is secondary channel. Result from this research with calculation manually stream at J-2 with debit 1,79 m3 / s and with SWMM are 2,26 m3 / s while capacities accomodate channel 2,39 m3 / s, so that do not happened overflowing, but it will flooding with 25 years return period.
Authors and Affiliations
Dewa Putu Purnawan
Keywords
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