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• <br /> FIELD CONSTRUCTION MANUAL- STONE TERRA <br /> EXCAVATION <br /> Confirm location and elevation of walls.Width of excavation should allow for width of wall base <br /> and drainpipe.Note: all excavation should follow applicable WISHA or OSHA guidelines.If the <br /> wall steps up one block in height,the base blocks should be installed at the lowest level in order <br /> to establish grade and face location of the second level. <br /> BASE PREPARATION <br /> Consult engineer's wall design for a base material specification including type,width, depth and <br /> compaction. It is recommended to start at lowest wall level. Locate the front face of the wall and <br /> run a string line one-inch in front of the face-two-inches above the base. Make sure the base <br /> material is well compacted. Test if necessary.After compacting,screed off base material,fill in <br /> low spots, and screed again.Repeat procedure as necessary to achieve firm,compacted base. <br /> Do not disturb string line.It is best to prepare the entire base before setting the blocks. <br /> LEVELING PAD <br /> SETTING BLOCKS <br /> Before placing blocks,make sure the top and bottom surfaces of the respective blocks are clean. <br /> At one end of the wall,or at one end of the lowest base elevation,start the wall.At the start of the <br /> wall,mark a line perpendicular to the face of the wall. This line will help place the first block <br /> square to the wall face.Place the first block one inch from the string line. Set the next block <br /> beside the first block, taking care to align the face. <br /> r--1i—k t-k r--, <br /> '1 <br /> LEVELING PAD <br /> GEOGRID <br /> MSE walls are walls that have geogrid material sandwiched between.each row of block. A <br /> maximum of two courses can be built before the wall must be backfilled. Start with the base <br /> course and lay the specified geogrid over the keyway of the blocks so that the grid reaches the <br /> face of the block,and covers the male keyway. Place the upper block over the grid,locking it <br />