Concrete structure

Abstract

A first hollow block is placed over or next to a second hollow block. Both blocks are filled with soil so that the roots of plants that are planted in the blocks are permitted to grow through openings of the blocks to interconnect the blocks, the roots and the existing ground.

We claim:  
     
         1 . A concrete structure comprising: 
 a first block having a first left side wall and an opposite first right side wall, the first left side wall and the first right side wall being integrally joined by a first front wall, the first left and right side walls protruding away from the first front wall and converging towards one another, the first left side wall having a first side opening defined therein, the first side walls being joined by a first bottom wall, the first bottom wall having a first front width at the first front wall and a first rear width remote from the first front wall, the front width being greater than the back width, the first bottom wall having a first bottom opening defined therein, the first bottom wall having a front opening and a rear opening defined therein, the front opening being adjacent to the ground;    a second block having a second left side wall and an opposite second right side wall, the second left side wall and the second right side wall being integrally joined by a second front wall, the second left and right side walls protruding away from the second front wall and converging towards one another, the second left side wall having a second side opening defined therein, the second side walls being joined by a second bottom wall, the second bottom wall having a second front width at the second front wall and a second rear width remote from the second front wall, the front width being greater than the back width, the second bottom wall having a second bottom opening defined therein; and    the second block being placed on top of the first block so that the second bottom opening is aligned with one of the openings of the first bottom wall.    
     
     
         2 . The concrete structure according to    claim 1    wherein the first block has a steel netting attached thereto.  
     
     
         3 . The concrete structure according to    claim 1    wherein the first block contains a plant that is planted in a soil so that roots of the plant are permitted to grow through the first side opening and into a third block adjacent to the first block to interconnect the first block to the third block.  
     
     
         4 . The concrete structure according to    claim 1    wherein the first block contains a plant that is planted in a soil so that roots of the plant are permitted to grow through the one of the bottom openings of the first block into the second block to interconnect the first block to the second block first block to tie the first block to the third block.  
     
     
         5 . The concrete structure according to    claim 1    wherein the first block has a cavity defined in a front corner of the first block, the cavity having a fastener disposed therein.  
     
     
         6 . The concrete structure according to    claim 5    wherein the fastener extends to a third adjacent block to attached the first block to the third block.  
     
     
         7 . The concrete structure according to    claim 1    wherein the first block has a groove defined at an underside thereof and the second block has an upwardly protruding notch that matchingly fit inside the groove of the first block.  
     
     
         8 . The concrete structure according to    claim 1    wherein the first front wall is curved to form a convex front face surface.  
     
     
         9 . The concrete structure according to    claim 4    wherein roots are permitted to grow in through the second side opening of the second block.