| 摘要 |
The invention relates to an automatic water catching arrangement for mountain rivers comprising a catching crest (1), a junction pipe (2) and a sand-clearing basin (3), characterized in that the catching crest ( 1) is lying slightly above the natural thalweg line, and sand-clearing basin (3) is located downstream where the hydraulic height, required for its functioning results from the difference between the natural slope of the river and the constructive slope of the junction pipe (2) having a free flow, said catching crest (1) having an overflow profile (4) with a symmetrical trapezoidal sailing line (5), cut downstream by inclined plane (7) having a slope of 70 %, wherein in a delta wing-shaped grid (8) is inscribed.
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