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1985年9月,美国在科登伍德(Cott-onwood)5号坝上造成了一座应用土工薄膜的非常溢洪道。这是美国垦务局用柔性薄膜衬砌非常溢洪道研究的突出成就。这项研究包括:问题的提出,可能的解决方法,现场研究设计、施工。用于现场试验的非常溢洪道计划明春投入使用。现有土石坝非常溢洪道泄量不足问题越来越受到关心,从而人们考虑用薄膜衬砌非常溢洪道,以节省投资。当前,薄膜的工业化生产为这种应用提供了广泛的的材料资源。低水头建筑物上薄膜衬砌非常溢洪道方面的应用研究已经开始了。随着这方面经验的积
In September 1985, the United States created a very spillway with a geomembrane on the dam No. 5 in Cott-onwood. This is the outstanding achievements made by the US Bureau of Reclamation in the study of very spillways with flexible membranes. This study includes: problem presentation, possible solutions, field research design, construction. The spillway plan for on-site testing is scheduled to come into operation tomorrow. Existing earth-rock dams are spillway spillway shortage problem is more and more concerned about, so people consider the use of film lining spillway to save money. At present, the industrial production of thin films provides a wide range of material resources for such applications. Applied research on thin-film lining very spillways in low-head buildings has begun. With the plot of experience in this area