PURPOSE: To make it possible to grow trees like natural woods outside a side slope covered with concrete.
CONSTITUTION: A surface wall 1 piled up with concrete blocks is constructed in a spot separated from the surface of a side slope 12 covered with concrete with a spacing. The wall 1 is opened on the top where pot-like blocks 3 and 4, whose inside is connected to the rear side of the wall are installed for every required spacing. What is more, the pot-like blocks 3 and 4 are properly laid out so that they may be large-sized to grow higher trees or small-sized to grow lower trees. Posts 14 piled with concrete blocks 13 for posts are longitudinally constructed for every specified spacing between the wall 1 and the side slope 12. The post member 14 is arranged to be supported on the side slope 12 by means of an anchor 13 while the post member 14 and the surface wall 2 are connected with each other by way of a connection material 35. The post member 14 is buried in the rear side of the wall 1 and each of the post-like blocks, thereby filling compost for tree-planting.
SAKAI DAISUKE
HORIGUCHI TAKESHI
TAKAKU KIYOKO
HAGIWARA EIJU
