The reinforcement principle and some properties of soilbags are introduced. Some practical application cases of soilbags in Japan
such as the reinforcement of building and road foundations
the construction of retaining wall and debris-diversion embankment
are presented. The reinforcement of soilbags is contributed by a tensile force
which thereafter induced an apparent cohesion. The tensile force is produced due to the extension of the perimeter of soilbag under the application of external force.