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    • 5. 发明授权
    • Water detention system incorporating a composite drainage membrane
    • 含有复合排水膜的滞留水系统
    • US08834065B2
    • 2014-09-16
    • US12749353
    • 2010-03-29
    • Peter HartStephen Richard Spikes
    • Peter HartStephen Richard Spikes
    • E01C3/00E01C3/06E01F5/00
    • E01C3/06E01F5/00
    • A water detention system comprises a sub-base of crushed rock or stone overlying an impermeable layer which may be naturally-occurring, as in an impermeable sub-grade, or may be formed by an impermeable membrane laid over the sub-grade prior to the sub-base layer. Over the sub-base layer is an incompletely impermeable layer the impermeability of which is compromised by openings in the form of slits or by spacing between adjacent strips forming the layer. These openings allow water to percolate downwardly through the layer into the sub-base, but substantially inhibit the escape of moisture by evaporation thereby serving to retain the collected water. Above the incompletely impermeable layer may be a laying course of finer particulate material such as pea gravel over which may be laid a wear surface of slabs or blocks to form an area for traffic, such as a roadway or parking area.
    • 水保留系统包括碎石或石头的底座,其覆盖不透水层,其可以是天然存在的,如在不可渗透的次级中,或者可以由位于子级之前的不渗透膜形成, 子基层。 在基底层之上是不完全不渗透的层,其不渗透性受到狭缝形式的开口或形成层的相邻条之间的间隔的影响。 这些开口允许水通过层向下渗出到底座中,但是通过蒸发基本上抑制水分逸出,从而用于保持收集的水。 在不完全不透水层之上可以是较细颗粒材料(例如豌豆砾石)的铺设过程,可以在其上铺设板或块的磨损表面以形成诸如道路或停车场的交通区域。