Climate Change Impact on Design of Water Harvesting Dams: Review and laboratory experimental Study
気候変動が集水ダム設計に与える影響：レビューと室内実験研究 (AI 翻訳)
H. M. S. Khatlan, A. H. Kamel
🤖 gxceed AI 要約
日本語
本論文は、気候変動による降雨パターンの変化がイラクの小規模ダム設計に与える影響を分析。従来の減勢工設計では極端な流量に対応できず、修正設計や数値モデルの有効性を示した。気候変動を考慮した設計基準の更新を提言。
English
This paper analyzes how climate change alters rainfall patterns, impacting small dam design in Iraq. Laboratory experiments show conventional stilling basins fail under extreme flows; modified designs and numerical modeling (Flow-3D) offer better performance. Recommends updating design standards for climate resilience.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
イラクの水インフラ適応を扱うが、日本のGX文脈では直接の関連は薄い。ただし、気候変動適応のためのインフラ設計見直しという観点は、日本の治水・ダム管理にも示唆を与える可能性がある。
In the global GX context
This paper is specific to Iraq's water security under climate stress. Globally, it contributes to the literature on climate-resilient hydraulic infrastructure design, relevant for regions facing increased rainfall variability. Not directly tied to GX frameworks like TCFD or ISSB.
👥 読者別の含意
🔬研究者:Provides experimental evidence on stilling basin performance under extreme flow, useful for hydraulic engineering and climate adaptation studies.
🏢実務担当者:Engineers designing water harvesting structures in arid regions may consider flexible designs and numerical modeling tools.
🏛政策担当者:Highlights the need to update infrastructure standards to incorporate climate change projections.
📄 Abstract（原文）
Amid the ongoing decline in water inflows from the Tigris and Euphrates rivers and increasing water scarcity due to regional hydrological pressures and environmental changes, Iraq has adopted the construction of small dams as a strategic solution to harvest seasonal rainfall, particularly in remote areas, to enhance local water security. However, this strategy faces a significant challenge due to accelerating climate change, which has disrupted rainfall patterns. Prolonged droughts are often followed by intense, irregular storms, resulting in high and unpredictable discharges. This variability increases the risk of failure in protective structures such as stilling basins, which are essential for dissipating flow energy and protecting downstream channels. This research includes a review and analysis of 36 previous studies on stilling basin design and performance through both physical and numerical modelling, in addition to conducting a laboratory experiment on a standard Type III basin under high flow conditions to evaluate its performance beyond the design discharge. Results revealed a substan drop in hydraulic efficiency and the formation of unstable, oscillating hydraulic jumps, indicating the inadequacy of conventional designs under extreme conditions. The review also highlighted that modified designs—such as those incorporating negative slopes, vertical barriers, or unconventional blocks—offered improved performance and stability. Numerical modeling tools like Flow-3D proved effective in simulating complex hydraulic behaviour at relatively low cost. The study recommends updating Iraq’s design standards for stilling basins to account for climate change and sudden discharges, and adopting flexible designs that can adapt to varying flow conditions to ensure long-term resilience and functionality
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1088/1755-1315/1596/1/012003first seen 2026-06-29 08:44:31
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