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All Journal Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Sistem Infrastruktur Teknik Sipil (SIMTEKS)
Avianta, Adhi Yanuar
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Engineering Environmental Science Industrial & Manufacturing Engineering

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IMPLEMENTASI KONSEP ECODRAIN PADA EVALUASI SISTEM DRAINASE PERKOTAAN (STUDI KASUS SUB SISTEM KALI TENGGER KABUPATEN GRESIK) Subakti, Nendi; Chalid, Abdul; Avianta, Adhi Yanuar
Sistem Infrastruktur Teknik Sipil (SIMTEKS) Vol 4 No 2 (2024): SIMTEKS - September
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Sangga Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32897/simteks.v4i2.3530

Abstract

The development of urban areas is faced with increasing population and growth of building infrastructure which has a negative impact on urban spatial planning, such as the potential for flooding and inundation during the rainy season. One effort to overcome this problem is by implementing a sustainable urban drainage system in various forms of structures, including at the study location. This research aims to determine the capacity of existing drainage channels and determine alternative conservation-based flood management. The method used is to carry out hydrological analysis on the Tengger River Drainage Sub System and hydraulic analysis with SWMM 5.2 software for modeling rain runoff. The design rainfall simulation uses daily rainfall data from Suci station for 10 years (2009-2018). Model calibration using the RMSE method obtained a value of 0.053209. The modeling results found that 4 sections of existing secondary channels were at maximum capacity and overflowed with rain with a design return period of 5 years. Three alternatives were implemented at the study location, namely (1) rainwater harvesting and infiltration wells, (2) cross wave storage and (3) retention ponds. From the analysis, the most effective treatment in reducing flooding and more likely to be implemented was selected, namely implementing cross wave storage at 33 points. The eco-drain facility has a large enough storage capacity and a wider surface area to absorb water into the ground. Implementing a retention pond at the research location is difficult due to limited land, even though it reduces flood discharge better than other alternatives.
Pemodelan Hujan Netto Berdasarkan Tutupan Lahan untuk Analisa Debit Aliran Rendah Avianta, Adhi Yanuar; Rispiningtati, Rispiningtati; Limantara, Lily Montarcih; Suhartanto, Ery
Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Vol 4, No 1 (2019): EDISI MARET 2019
Publisher : Universitas Tribhuwana Tunggadewi Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (575.6 KB) | DOI: 10.33366/rekabuana.v4i1.1021

Abstract

This research intends to investigate the land cover change and to obtain the canopy interception in the Lesti sub-watershed, and to produce the rainfall-discharge modeling as the function of net rainfall factor. The methodology consisted of identifying the land cover based on the Normalized Difference Vegetation Index (NDVI) classification of digital satellite images Landsat TM 7 and TM 8, carrying out the field study to obtain the canopy interception used a volume balance approach. The interception rate of Lesti sub-watershed are 5 – 7 % in everage of rainfall, the net-rainfall models of Lesti sub-watershed are Pnetto= P - (-1E07P² + 0.059P +0.260) for land clasification II and Pnetto = P – (-1E07P² + 0.199P + 0.16) for land clasification III, it used as the input on the rainfall-discharge modeling of F.J. Mock, the result showed that the use of net-rainfall on the rainfall-discharge modeling of F.J. Mock increased the accuracy of generated discharge which is strongly influenced by the proportional of land classification.
Co-Authors Chalid, Abdul Ery Suhartanto Lily Montarcih Limantara Rispiningtati Rispiningtati Subakti, Nendi