Who knows how much the staggered distance of the lap joint is
The staggered distance of the lap joint shall not be less than 300 mm. The concrete specification (geotextile laid overlapping: when) using geotextile as filter layer, should be laid in place in the bottom and sides of the trench wall, soil and reserve covering the top required fabric, straighten ride close to the lower layer, all vertical or horizontal joints should be staggered alternately. The lap length shall not be less than 300MM.A grille is made of polypropylene, PVC polymer and thermoplastic or molded by two-dimensional grid or a certain height of the three-dimensional mesh screen, when used as a civil engineering, called geogrid.
Specification requires a lot of 0.3M
Seam stagger distance is greater than 1 meters, because the joints are relatively weak.