| 摘要 |
PROBLEM TO BE SOLVED: To easily provide an airfield 1 having a required space. SOLUTION: The airfield 1 is constructed by disposing a large number of concrete solid objects in three-dimensional directions. The solid object is made of prestressed concrete and has a regular hexahedron shape. The periphery of the airfield 1 is provided with a wave-dissipation device 12 for preventing a break of the airfield 1 caused by waves.
|
