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    Material and system for minimizing erosion
    51.
    发明授权
    Material and system for minimizing erosion 失效
    减少侵蚀的材料和系统

    公开(公告)号：US4279535A

    公开(公告)日：1981-07-21

    申请号：US80302

    申请日：1979-10-01

    申请人： Joseph Gagliardi ,  Charles A. Lee

    发明人： Joseph Gagliardi ,  Charles A. Lee

    IPC分类号： E02B3/12 ,  E02D17/20 ,  E02B3/04

    CPC分类号： E02D17/202 ,  E02B3/12

    摘要： A silt fence is provided which includes an elongated first strip of material which was a relatively uniform porosity and which is fabricated from filaments of relatively small diameter. The first strip is attached to an elongated second strip of material which is fabricated from yarns in a grid pattern, the yarns being of relatively large diameter relative to the filaments of the first strip of material and having from about 2 to 8 yarns per inch in each direction. The composite strip has a Frazier air permeability of from about 100 to 1000 cubic feet per square foot per minute at 1/2 inch of water pressure. The material may be provided with a hem in which is disposed a tensioning member.In use the tensioning member in the hem is attached to posts and the other edge of the material is buried in a trench in the ground.

    摘要翻译： 提供了一个粉砂栅栏，其包括细长的第一材料条，其是相对均匀的孔隙率，并由相对较小直径的长丝制成。 第一条带连接到由网格图案的纱线制成的细长的第二材料条，纱线相对于第一条带材的长丝具有相对较大的直径，并且每英寸约2至8根纱线 每个方向 复合条带在1/2英寸水压下具有约100至1000立方英尺每平方英尺每分钟的弗雷泽透气度。 该材料可以设置有在其中设置有张紧构件的褶边。 在使用中，下摆中的张紧构件附接到柱上，并且材料的另一边缘埋在地面上的沟槽中。