Perbandingan Efektifitas Sumur Resapan Buis Beton Biasa dan Buis Beton Non Pasir terhadap Laju Infiltrasi

Abstract

Based on data from the Central Statistics Agency for the city of Medan, the population in the city of Medan in 2021 was 2,460,858 people and experienced an increase of 1,349% in 2022. The increase in population in the city of Medan indirectly has an impact on increasing the need for land use for shelter and reducing rainwater catchment areas, if this condition continues it can cause inundation or even flooding. Therefore, there is a need for an environmentally sound development concept that seeks excessive water management by containing, absorbing, flowing and maintaining so that it does not cause inundation and danger to the environment. This concept is in line with how infiltration wells work. From the description of this problem, an infiltration well is needed that can speed up the infiltration rate, according to SNI 8456:2017 concerning Rainwater Infiltration Wells and Trenches, there are 4 types of infiltration wells. In this research, a comparison was made of 2 types of infiltration wells, ordinary concrete infiltration wells and non-sand concrete infiltration wells to the infiltration rate. Using the Horton method infiltration rate calculation, it was found that the infiltration rate for ordinary concrete infiltration wells was 22,000 cm/hour, while the infiltration rate for non-sand concrete infiltration wells was 53,000 cm/hour. From these results, it can be concluded that non-sand concrete infiltration wells are more effective in accelerating the infiltration.