Hakim, Fadillah (2023) Studi Sistem Sumur Resapan Sebagai Usaha Mereduksi Debit Genangan Di Perumahan Griya Ventura. Other thesis, universitas islam riau.

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Abstract

One of the locations where flooding occurs is in the Griya Ventura residential area, Tuah Madani District, with a flood height of 50-60 cm, which is caused by rainfall and an intensity of up to 30,473 mm/hour, this has implications for the inability of the drainage system to drain runoff water. primary channel and so on to the water body area. Based on this, seen from the flood phenomenon, an effort was made to evaluate the drainage system and calculate the runoff discharge to reduce the inundation discharge with an infiltration well system as an effort to reduce flood discharge. method used in the analysis of planned rainfall uses the Log Person Type III method, while the rational method is used in determining the area runoff discharge and evaluating the flow rate on the existing drainage, to determine the value of soil absorption in Griya Ventura Housing by using the Horton method with intervals time is five minutes to one hour. results obtained in this study are the discharge value of the runoff plan for the 2-year period is 77,268 mm/hour and for the 5-year return period is 87,902 mm/hour. In the existing drainage channel in the field, there are 18 channels that cannot accommodate runoff discharge and 19 channels that can accommodate runoff discharge. The planned number of infiltration wells is 214 infiltration wells for a 2 year period and 222 infiltration wells for a 5 year period with a depth of 3 meters and a width of 0.5 meters, the volume that can be accommodated in 1 well is2,355 m3.Rainfall, Infiltration, Drainage, Infiltration wells, Flow discharge, Inundation

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