Abstract
The arched-structure has been utilized to a lot of structure since ancient times. It is known that those structures resist by it's substituting compression power for upper load.
As the construction materials, stones, concrete and stiff materials have been used mainly. On the other hand, it is confirmed that “soil bag” which is wrapped soil with geosynthetics displays big compression by restriction effect of geosynthetics. Therefore, loading laboratory test which used soil bag that wrapped a layer system mass of aluminum stick with paper for calligraphy was carried out, because it is thought that the tunnel lining to build in embankment can utilize to the arch structure using this soil bag.
Because an arching effect by soil bag was able to be confirmed from this model test result, two arched-structures of actual size of inner wide 5m were built with a purpose to confirm actual behavior and execution.
In this examination, the transformation and the behavior of earth pressure were confirmed during the construction of arch structure of inner wide 5m. As a result, the possibility of the construction of arched-structure and that stress concentrated on the inside of arch were confirmed.
