| 摘要 |
<p>[Problem] To provide a protective dam body concurrently capable of reducing cost, widening the transmission range of impact in order to increase protective performance, and reducing the size of the dam body main body. [Solution] The present invention is provided with a dam body main body (20) and a semihard shock-absorbing restraint layer (30), the shock-absorbing restraint layer (30) being configured of a plurality of impact-receiving bodies (35) accommodating a hard shock-absorbing material (32) in a horizontally long restraint cage (31). The gap between adjacent impact-receiving bodies (35) is connected with a connecting material (34). When an impact is received, the shock is transmitted to the dam body main body (20) via the shock-absorbing restraint layer (30), which changes hardness from a semihard substance to a hard substance, and attenuated.</p> |
