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INDONESIA
Inersia : Jurnal Teknik Sipil dan Arsitektur
Published by Universitas Negeri Yogyakarta
ISSN : 0216762X     EISSN : 2528388X     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
INERSIA is stand for INformasi dan Ekspose hasil Riset Teknik SIpil dan Arsitektur. This scientific journal is managed by the Department of Civil Engineering and Planning Education, Faculty of Engineering, Yogyakarta State University, in cooperation with the Persatuan Insinyur Indonesia (PII). It publishes and disseminates research results from lecturers and post graduate students from various universities in Indonesia, which has contributed to the development of science and technology, especially in the field of Civil Engineering and Architecture. INERSIA is published twice a year, in May and December.
Arjuna Subject : -
Articles 331 Documents
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Integrated Infiltration Runoff Drainage Assessment for Urban Pluvial Flooding at a Campus Scale in a Tropical Environment Rabinah, Aiun Hayatu; Suparman, Suparman; Mahbub, Jamal; Parhadi, Parhadi; Larassati, Dian Sukma; Sulistiawati, Baiq Heny; Kusdiyanto, Rizky Aji
INERSIA lnformasi dan Ekspose Hasil Riset Teknik Sipil dan Arsitektur Vol. 22 No. 1 (2026): May
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v22i1.96113

Abstract

Urban pluvial flooding frequently occurs in semi-urban tropical environments where intense rainfall exceeds local infiltration and drainage capacity. This study presents an integrated infiltration runoff drainage assessment at the campus scale to evaluate surface water inundation risk at Politeknik Negeri Semarang, Indonesia. Soil physical and hydraulic properties were characterized through laboratory testing, and infiltration behavior was simulated using the physically based Green–Ampt model under 2, 5, 10, and 20-year return period rainfall. Runoff was estimated using the Rational Method based on rainfall intensity corresponding to the time of concentration, while drainage storage capacity was quantified through field-based geometric measurements. The results indicate that the site is dominated by fine-grained soils (OH/MH; A-7-5) with very low saturated hydraulic conductivity (4.209 × 10⁻⁶ mm/s), limiting infiltration effectiveness to the early stage of rainfall. Infiltration rates rapidly decline toward saturated conductivity values, causing increasing rainfall increments to be converted directly into surface runoff. Estimated runoff volumes increase from 341.308 m³ (2-year) to 527.498 m³ (20-year return period). Although total drainage storage capacity (1270.38 m³) exceeds runoff volume, the storage margin decreases significantly under higher return periods, indicating increasing susceptibility to drainage surcharge. The integrated framework provides a process-based explanation of pluvial flooding driven by limited infiltration and drainage capacity utilization in tropical campus environments.

Page 34 of 34 | Total Record : 331

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