公开(公告)号：US5221157A

公开(公告)日：1993-06-22

申请号：US815335

申请日：1991-12-27

申请人： Gordon K. Prestedge

发明人： Gordon K. Prestedge

IPC分类号： E02B3/12 ,  E02D17/20

CPC分类号： E02D17/20 ,  E02B3/12 ,  E02D17/205

摘要： Revetments are constructed using a plurality of revetment units which are arranged on river bed or the like. Each revetment unit comprises a stem and a disc-like head. The stem is stepped so that it has a relatively short larger diameter part and a relatively long smaller diameter part. The heads of units in each upper course lie behind the heads of the units in the course below and rest on the larger diameter parts. The heads and stems are preferably circular in cross-section but can be multi-facetted.

摘要翻译： 护岸使用多个安置在河床等上的护岸单元构成。 每个护岸单元包括杆和盘状头。 杆是阶梯形的，使得其具有相对短的较大直径部分和相对较长的较小直径部分。 每个上层的单元的头部位于下面的过程中的单元的头后面，并且放置在较大的直径部分上。 头和茎的横截面优选为圆形，但可以是多面的。