Flood mitigation of Bila River in Sidrap Regency Indonesia based on eco-drainage retention pond

IF 1.6 Q3 WATER RESOURCES Water Practice and Technology Pub Date : 2023-04-10 DOI:10.2166/wpt.2023.051
Abdulla Suleman, S. Badaruddin, Mustamin Mustamin, Z. Saing, Muhammad Rivaldi Mustamin
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Abstract

This study aims to analyze the distribution of floods in the Bila River and its countermeasures in reducing the impact that occurred in Sidrap Regency. The study performs hydrological analysis using the Bila watershed rainfall data, calculates the planned flood discharge using the HSS SCS model, and simulates the flood flow profile using the HEC-RAS 2D numerical model. It is found that the Q20 flood discharge of the Bila and the Bulucenrana Rivers entered the Bila River downstream calculated from the HSS SCS analysis are 738.60 and 779.50 m3/s, respectively. The overflow of the Bila River flood affects 9 villages, namely Kalola Village (0.06 km2), Sogi Village (0.01 km2), Kalosi Alau Village (0.32 km2), Kampale Village (0.11 km2), Salomalori Village (0.42 km2), Tanru Tedong Village (2.12 km2), Kalosi Village (0.91 km2), Salobukkang Village (1.70 km2), and Taccimpo Village (4.01 km2). It is proposed that the best solution to deal with the issue is by introducing an eco-drainage system, namely by constructing a retention pond with a maximum storage volume of 3.81 million m3 or with a normal storage of 2.4 million m3. The existence of a retention pond can reduce the inundated area around 8.28 km2 or 85.71%.
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基于生态排水截留池的印尼Sidrap县Bila河防洪研究
本研究旨在分析比拉河洪水的分布,以及减少比拉河洪水影响的对策。本研究使用Bila流域降雨数据进行水文分析,使用HSS SCS模型计算计划洪水流量,并使用HEC-RAS 2D数值模型模拟洪水流量剖面。通过HSS - SCS分析计算得出,比勒纳河和布卢什拉纳河进入比勒纳河下游的Q20洪流量分别为738.60 m3/s和779.50 m3/s。比拉河洪水泛滥影响了9个村庄,分别是卡罗拉村(0.06平方公里)、索吉村(0.01平方公里)、卡洛西阿劳村(0.32平方公里)、坎帕莱村(0.11平方公里)、萨洛马洛里村(0.42平方公里)、坦如特东村(2.12平方公里)、卡洛西村(0.91平方公里)、萨洛布康村(1.70平方公里)和塔齐普村(4.01平方公里)。建议最好的解决方案是引入生态排水系统,即建造一个最大蓄水量为381万立方米或正常蓄水量为240万立方米的蓄水池。蓄水池的存在可减少约8.28 km2或85.71%的淹没面积。
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来源期刊
CiteScore
2.30
自引率
6.20%
发文量
136
审稿时长
14 weeks
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