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人字闸是一种钢筋混凝土半固定式蓄水闸门,由于支架为人字形状,故称人字闸。它是丘陵区拦蓄小泉小水,进行综合开发利用的有效形式,能很好地解决因小河流季节性较强、流量小而产生的用水矛盾。它的主要特点是投资小、见效快,蓄水、泄水调度运用简单易行、灵活方便,又能解决冲淤问题,实现蓄清排洪、小水大用、闲水忙用。山西省临汾地区现已建成人字闸300余座,基本实现对地表径流的全面控制与梯级开发利用,取得较好的经济效益和社会效益。
Miazizha is a semi-fixed reinforced concrete sluice gate, because the bracket is herringbone shape, it is called the Mudou. It is an effective form of reserving small waters in the hilly area to carry out comprehensive development and utilization, and can well solve the contradiction between the water supply due to the seasonal and small flow of small rivers. Its main features are small investment, quick results, water storage, discharge scheduling easy to use, flexible and convenient, but also solve the problem of scouring and silting, to achieve clearing floods, small water, leisure and busy use. Now there are over 300 Miazi gates in Linfen area of Shanxi Province. The overall control over surface runoff and development and utilization of cascades are basically achieved, and good economic and social benefits have been achieved.