| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a boundary block having a manufacturing cost not so higher than conventional ones, as well as allowing easy work for installation thereof in a line, and to provide a laying method thereof. <P>SOLUTION: A long boundary block 1A has an isosceles-trapezoidal cross-section shape. In one and the other side faces 11, 12 in the lateral direction of the boundary block 1A, cutouts 31, 32 are formed as reference positions where leveling lines 80 to be used in laying the boundary block 1A are set, respectively. Each of the cutouts 31, 32 is angled into a V-shape so that the reference position is clear where the leveling line is set. It is formed linear ranging from one end to the other end of each of side faces 11, 12, in a boundary between a site embedded portion and a site protruded portion at the lower part of the boundary block 1A. <P>COPYRIGHT: (C)2013,JPO&INPIT |
