Tugas Akhir Sipil
PERENCANAAN DRAINASE DENGAN KONSEP EKODRAINASE DI PERUMAHAN GRAHA KARTIKA PERDANA KECAMATAN KEDIRI KABUPATEN LOMBOK BARAT
Graha Kartika Perdana Residential is located in Sub-district Kediri, West Lombok District. The location was empty land that was able to drain and absorb water, with the construction of this residential resulting in a decline in the function of catchment areas and runoff that could cause flooding. Kediri Sub-district is one of the sub-districts that became a drought subscription in 2016, so the right method is needed in order that runoff water is not wasted. Ecodrainage is also called environmental-friendly drainage. The basic principle of this environmentally sound drainage system is to control the excess surface water in such a way that runoff water can flow in a controlled manner and get more opportunities to seep into the soil. One of the ways to overcome the problem of flooding is by making infiltration wells that are included in the ecodrainage facility. The purpose of the infiltration well is to raise the ground water level, so in this location the groundwater level can be raised and can be reused during the dry season. The result of the planning of the ecodrainage network in this residential is that infiltration wells built with a total of 1048 pieces for individual infiltration wells can reduce runoff by 76,27%; and 74 collective infiltration wells can reduce runoff by 69,47%. The dimensions planned for individual infiltration wells are concrete with a diameter of 1 m and a depth of 5.5 m; for collective infiltration wells concrete with a diameter of 1 m and a depth of 6.5 m. For drainage channels using concrete U ditch with variation dimensions, from the smallest 30 x 30 to largest 80 x 100. While the total Budget Plan costs required for this development amount to Rp. 13,665,237,420.70, -.
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