| 摘要 |
1,149,155. Block for breakwaters, dikes and jetties. J. STOLK, J. STOLK, K. STOLK and J. H. STOLK. 4 Sept., 1967 [5 Sept., 1966], No. 40270/67. Heading E1H. An artificial block 2 for the construction of water barriers such as breakwaters, dikes and jetties (shown in Fig. 1 as dropped at (random to protect the embankment 1 of a jetty composed of sunk mattresses 1a, gravel 1b and stones 1c) is of generally prismatic form (in the preferred embodiment shown in Fig. 1, a cube) with internal passages 3 opening at the faces of the block and affording communi- cation between each face and at least two other faces, including the opposite face. |
