Ayu Putri Wedayanti Pulasari, Luh (2021) APLIKASI TRMM (TROPICAL RAINFALL MEASURING MISSION) PADA EVALUASI SALURAN DRAINASE PERKOTAAN BERWAWASAN LINGKUNGAN DI SISTEM DRAINASE SEBANGAU DAN KAHAYAN, PALANGKA RAYA. Sarjana thesis, Universitas Brawijaya.
Abstract
Genangan air yang muncul di ruas-ruas jalan merupakan suatu permasalahan umum di daerah perkotaan salah satunya pada Kota Palangka Raya. Sistem drainase yang ada pada kawasan ini masih menggunakan sistem drainase konvensional dan belum mampu menampung genangan yang terjadi. Sehingga perlu adanya penanganan dengan cara meresapkan atau menampung sementara genangan sebelum dibuang ke badan sungai yang merupakan konsep dari sistem drainase berwawasan lingkungan. Untuk mengetahui debit rancangan pada saluran drainase di lokasi studi, dilakukan pengolahan data hidrologi menggunakan bantuan data hujan satelit TRMM karena keterbatasan panjang data hujan di lapangan. Dari hasil pengolahan data hujan satelit TRMM, didapatkan debit rancangan pada Sistem Drainase Kahayan dan Sebangau yang berbeda pada tiap saluran. Dengan menggunakan kala ulang 5 tahun, didapatkan nilai debit banjir rancangan terkecil 1,097 m3/dt dan terbesar 59,111 m3/dt. Dari hasil evaluasi didapatkan 11 dari 28 saluran yang ada perlu dilakukan penanganan genangan. Alternatif penanggulangan genangan dengan konsep drainase berwawasan lingkungan yang dipilih yaitu dengan merehabilitasi saluran dan pembuatan kolam detensi. Alternatif tersebut dapat mereduksi genangan sebesar 100%.
English Abstract
Luh Ayu Putri Wedayanti Pulasari, Departement of Water Resources Engineering, Faculty of Engineering, University of Brawijaya, May 2021, TRMM Aplication on Urban Eco Drainage Evaluation in Sebangau and Kahayan Drainage System, Palangka Raya, Academic Supervisor : Ussy Andawayanti and Ery Suhartanto. Land conversion due to the increasing influence of urbanization causes a reduction in water infiltration areas in urban areas. During the rainy season, the existing urban drainage is unable to accommodate rainwater runoff, because its capacity increases due to reduced water infiltration areas and causes water to be inundated for a long time. Inundation on roads has become a common problem in urban areas, the ones at the Palangka Raya City. The existing drainage system at the study area still uses a conventional drainage system, where runoff is directed as quickly as possible to the river. The amount of inundation that occurs has not been able to be handled effectively only by optimizing the existing conventional drainage system. Thus requires for handling by absorbing or temporarily accommodating the inundation before being discharged into the river which is the concept of an eco–drainage system. In this study, an evaluation of the capacity of the drainage channel is analyzed to obtain the right solution in inundation control. This study aims to analyze the design discharge using daily rainfall data from the rain station in the Kahayan watershed. To determine the design rainfall in the drainage channel at the study area, hydrological data processing is analyzed using the TRMM satellite rainfall data due to the limited rainfall data length. From the results of the TRMM satellite rainfall data processing, a design discharge is analyzed using the Modified Rational Method by processing the data of storage coefficients, runoff coefficients, rainfall intensity, and catchment area of the drainage channel. For combined channel discharge, it is calculated using the combined area, combined runoff coefficient, combined storage coefficient, and a combined time of concentration, to get effective results. The design discharge of the Kahayan and Sebangau Drainage Systems is different for each channel. With a 5-year return period, the smallest design discharge value is 1,097 m3/s and the largest is 59,111 m3/s. From the results of the evaluation, it was found that 11 out of 28 existing channels needed to have inundation control. Chosen alternative to inundation control with eco–drainage concept is by rehabilitating channels and making detention ponds. This alternative can reduce inundation by 100%. Keywords: TRMM, Inundation, Channel Evaluation, Channel Rehabilitation, Detention pond
Other obstract
-
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | 052107 |
| Uncontrolled Keywords: | Kata Kunci: TRMM, Genangan, Evaluasi Saluran, Rehabilitasi Saluran, Kolam Detensi-- TRMM, Inundation, Channel Evaluation, Channel Rehabilitation, Detention pond |
| Subjects: | 600 Technology (Applied sciences) > 627 Hydraulic engineering > 627.5 Reclamations, Irrigation, related topics > 627.52 Irrigation |
| Depositing User: | Unnamed user with email gaby |
| Date Deposited: | 21 Oct 2021 01:23 |
| Last Modified: | 07 Oct 2024 03:59 |
| URI: | http://repository.ub.ac.id/id/eprint/184476 |
![[thumbnail of Luh Ayu Putri Wedayanti Pulasari.pdf]](http://repository.ub.ac.id/style/images/fileicons/text.png) |
Text
Luh Ayu Putri Wedayanti Pulasari.pdf Download (8MB) |
Actions (login required)
 |
View Item |