Research Resource code：5000002476
Update date：Jan. 14, 2005
Manufacturing process of artificial boulders and artificial jewels produced by this process
田中 正、見目 誠造
Research resource, Research sample, Prototype, etc
Artificial boulders were produced as the substitutes
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of natural boulders which became increasingly difficult
to be obtained by the River Protection Regulations.
They have the characteristics of hollow internal
structure, light-weight, reinforced fastening,
superior safety and easy processing. The utilization
of wastes of crushed stone and sand drainage meets the
effective use of resources.