To save materials and labor by rapidly installing a temporary falling-stone guard fence, ensuring the traffic of one lane and easily removing the temporary falling-stone guard fence while repeatedly using materials when the collapse accident of a road side-face slope occurs.
The falling-stone protective temporary-work method is conducted so that a large number of precast concrete blocks 10 having building holes for column materials and having 4 to 20 tons and being formed in a truncated pyramidal shape are connected horizontally and arranged on a road, on which an uneven adjusting sheet 20 is laid, a wide-flange shape steel 30 is inserted into the building holes 12 and the wide-flange shape steel 30 is disposed in upright, protective materials 40 such as liner plates are engaged with the wide-flange shape steel 30 and the temporary falling-stone guard fence 110 is installed in an emergent manner.
NAKASUGA SATOSHI
HORIUCHI TETSUO
Masaki Yamada
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