KAJIAN PENGARUH LUBANG RESAPAN BIOPORI (LRB) TERHADAP KAPASITAS INFILTRASI PADA PERUMAHAN KENCANA DAMAI KOTA PALEMBANG

The problem of flooding in densely populated residential areas is a problem that often occurs in urban areas. One example is the frequent flooding of Kencana Damai housing estates located in Sako District, Sukamaju Village, Palembang City. Every rainy season, puddles or floods often occur with a duration of 2-3 hours. This study was used to determine the infiltration capacity and to find out how much effective LRB is in increasing the infiltration rate.. In making biopore holes, a distance of 60 cm (50-100 cm) is given because it is adapted to the limited land area. The hole made has a depth of about 1 m with a hole diameter of 4 location 2 the soil type is SP (poorly graded sand). These physical properties and soil types affect the infiltration capacity. This is evidenced by the large increase in the infiltration rate at locations 1 and 3 (SW), namely 15.588 cm/hour or 57.86% and 14.971 cm/hour or 55.57%. In contrast to the infiltration rate at location 2 with SP soil type (poorly graded sand), the increase in infiltration rate at that location was only 4.435 cm/hour or 16.46%.