Bacic Studies on the Torrent Intake Systems at the Mountainous Livestock Farms

近年来，通过开发山地未利用地或高地利用价值低的土地，建设了畜牧业生产基地。在许多情况下，急流被用作所述基地的谷仓或牧场的水源，并且作为取水设施，布置了各种急流取水口。在这些急流取水口中，经常导致部分急流取水口被土壤和砾石、落叶、洪水时，枯枝或类似物流下，堆积在取水口上。因此，对作为取水设施的山洪取水口的实际情况进行了调查和清理，同时，根据实际情况，试验研究了一种考虑急流特性的改进型进水口，并对其水力特性进行了分析。（一）.河床地形特征及 ...更多信息 在其上布置有激流进口的激流盆地。通过产量图分析、结构图分析和现场调查，对在北上山区高地上建设的奶牛养殖设施或牧场设置进水口的山洪河床和流域进行了地形分析。转折点较多的急流床层约占总床层的65%。根据现场调查的结果，在具有这些不稳定因素的进水口中，土壤和砾石的堆积是明显的，并且有许多设施变得难以进水。（二）、改进型急流取水口的试建及正态试验对于从高原急流取水的情况，与急流取水河床平行的集水式涵洞系统是可行的。作为水力特性，进水量受坡度、流动状态、进水管的损失等影响。少

In recent years, a livestock production base has been constructed by developing mountainous unused land or land low in utility value of highland. In many cases, a torrent is utilized as the source of water for the barn or pasture of said base and, as intake facilities, various torrent intakes are arranged.In these torrent intakes, it is frequently brought about that a part of the torrent intakes, is destructed or the planned quantity of water intake is not obtained by soil and gravel, fallen leaves, dead branches or like flowing down to accumulate on intake parts at the time of a flood.Thereupon, the actual conditions of the torrent intakes arranged as intake facilities livestock industry were investigated and cleared while, on the basis of the actual condition, an improved type intake considering the characteristics of a torrent was constructed experimentally and the hydraulic characteristics thereof were analyzed on an experimental basis.(1). Topographical Characteristics of Bed and … More Basin of Torrent Having Torrent Intake Arranged Thereto. The topographical analysis was conducted on the beds and basins of torrents provided with intakes for the dairy farming facilities or pastures constructed on the highland of Kitakami Mountainous District, through the analysis of a yield diagram, that of structural drawing and investigation on the scene. The bed of torrents having many transition points reached about 65% of the whole. As a result of the investigation on the scene, in the intakes having these unstable elements, the accumulation of soil and gravel was marked and there were many facilities having become difficult to take in water.(2). Trial Construction and Positive Experimant of Improved Type Torrent Intake. In the case of the intake from the torrent of highland, a water gathering type culvert system parallel to the intake bed of the torrent was practical. As hydraulic characteristics, the quantity of water intake was affected by a gradient, a flow state, the loss of an intake pipe or the like. Less