前言聚烯烃网坝,作为一种工程措施,对我们浙江省来说,还是比较新鲜和陌生的。为了取得这方面的实践经验,在华东水院呼延如琳教授的热情指导下,我们在宁波地区搞了二个网坝促淤的试点工程。一个试点工程设在慈溪县的海王山,共做了两道浮网坝,采用的是丁坝布置的型式,其中一道长520m,另一道长700m,网高都是3.5m,网眼尺寸为2cm×2cm,网体用聚乙稀网线结成,上下均穿扎着聚丙稀的网纲绳,下网绳用素混凝土隧体块沉入江底,上网绳用聚氯乙稀的硬塑浮球飘起在水中。我们的目标是想通过网坝促淤使这两道浮网坝 Preface Polyolefin net dam, as an engineering measure, for us in Zhejiang Province, is still relatively new and unfamiliar. In order to gain practical experience in this area, under the guidance of Professor Hu Yanru Lin of East China Water Institute, we piloted two experimental projects of network damming and silting in Ningbo. A pilot project is located in Haiwang Mountain, Cixi County, made a total of two floating net dam, using the layout of the dam dam, one of 520m long and the other long 700m, net height is 3.5m, mesh size of 2cm 2cm, the net body is made of polythene wire netting, and the upper and lower wirewears polypropylene net mesh ropes, the net net rope plain concrete tunnel block sinks into the river bottom, the net rope is made of PVC plastic hard float Piled up in the water. Our goal is to encourage these two floating net dam through the net dam