Development of Driftwood Capture Trellis for Capturing Driftwood in Agricultural Drainage Ditches

Applied Sciences

Moojong Park¹  Youngseok Song² 

[1] Department of Aeronautics and Civil Engineering, Hanseo University, Seosan 31962, Korea;Department of Civil Engineering and Landscape Architectural, Daegu Technical University, Daegu 42734, Korea;

关键词: agricultural drainage ditches;    driftwood;    driftwood capture trellis;    capture efficiency;    hydraulic experiment;    hydrodynamics;   

DOI  :  10.3390/app10175805

来源: DOAJ

【 摘 要 】

The flow of driftwood and soil into drainage from agricultural areas accelerates sedimentation and inflicts overflow damage after rainfall events due to insufficient discharge capacity, causing flooding on agricultural land. However, there have been few efforts to develop a driftwood capture trellis for agricultural drainage ditches, except for some suggested design criteria. In this study, we developed a driftwood capture trellis to capture driftwood in agricultural drainage ditches and evaluated its performance based on hydraulic characteristics. The facility was designed considering criteria for drainage and driftwood control barriers, as well as the properties of driftwood found near agricultural drainage ditches. Performance evaluation was conducted through hydraulic experiments. Driftwood capture trellises were installed in 400 mm drainage pipes and a total of 216 experimental runs were conducted: six runs each in six different velocity variations and six water depth variations. The results showed that the driftwood capture efficiency of the facility exceeded 60% at a velocity of 0.144 m³/s. Limited conditions for hydraulic experiments should be considered. The driftwood capture trellis for agricultural drainage ditches developed in this study could contribute to a reduction in overflow damage caused by driftwood sedimentation.

【 授权许可】

Unknown