| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact rock fall prevention fence which has high rock fall energy absorption efficiency and is superior in strength, functionality, construction performance and repairing performance. SOLUTION: To provide one cable with high impact energy absorption, among two types of ropes with different moduli of elasticity, the rope with larger modulus of elasticity is located at the center, and the ropes with smaller modulus of elasticity are joined to both ends of the rope with larger modulus of elasticity. The cable with high impact energy absorption thus obtained is used as the rock fall receiving cable of the rock fall prevention fence. COPYRIGHT: (C)2011,JPO&INPIT
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