New Approach to Control Flood and Transport of Debris Material: Shipnose Type Open Check Dam

Öz

Flood events, which cause serious damage and loss of life in mountainous basins, are mostly caused by the transport of woody material that blocks bridges and culverts during flooding. In recent years, open check dams have begun to be built to trap woody materials. However, these structures can become blocked with woody materials in a short time, especially in large floods. So the material quickly loses its function of filtering and trapping the woody material. In this study, in order to prevent this problem, the new type of dam designed in the shape of the ship nose was compared against two different types of classical semi permeable open check dams in operation, in a laboratory. The results showed that the new type is effective against the problem of rapid clogging and overrun of woody materials. With the implementation of this structure, an important contribution could be made to reduce flood damages.

Anahtar Kelimeler

• Open Check Dam
• Woody Debris
• Ship Nose
• Semi permeable
• Flood
• Debris Control

Taşkın ve Rüsubat Kontrolünde Yeni Öneri: Gemiburnu Tip Geçirgen Bent

Öz

Dağlık havzalarda ciddi hasarlara ve can kaybına neden olan taşkın olayları, büyük ölçüde taşkın sırasında köprü ve menfezleri tıkayan odunsu malzemenin taşınmasıyla meydana gelmektedir. Son yıllarda, odunsu malzemeleri tuzaklamak üzere geçirgen tersip bentleri inşa edilmeye başlanmıştır. Ancak, bu yapılar özellikle büyük taşkınlarda odunsu malzemelerle kısa sürede tıkanabilmekte, bu nedenle malzeme filtreleme ve odunsu materyali tuzaklama işlevini hızla kaybetmektedir. Bu çalışmada, bu sorunun önlenmesi adına gemiburnu şeklinde tasarlanmış yeni tip bent, işletme halindeki iki farklı tipteki klasik yarı geçirgen tersip bendi ile laboratuvar ortamında karşılaştırılmıştır. Sonuçlar yeni tipin hızlı tıkanma ve üstten aşma sorununa karşı etkili olduğunu göstermiştir. Bu yapının uygulanmasıyla taşkın zararlarının azaltılması adına önemli bir katkı sağlanmış olacaktır.

Anahtar Kelimeler

• Geçirgen tersip bendi
• Odunsu malzeme
• gemiburnu
• yarı geçirgen
• taşkın
• rüsubat kontrolü

Kaynakça

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