Water-power; an outline of the development and application of the energy of flowing water . Fig. Fig. igf4. refuse lumber, culls, slabs, lumber taken from coffer-dams orold buildings. On this covering are laid the sleepers, consist-ing of 2 X 9 or 3 X 9 plank set edgewise and confined b\ toe-nailing, , by nails driven obliquely through the lowercorners into the covering. These nails, crossing each other,have a sufficient holding power. The spaces or pocketsbetween the sleepers are then filled with gravel or whatevermaterial occurs in the canal, which material is placed in posi-tion,
Water-power; an outline of the development and application of the energy of flowing water . Fig. Fig. igf4. refuse lumber, culls, slabs, lumber taken from coffer-dams orold buildings. On this covering are laid the sleepers, consist-ing of 2 X 9 or 3 X 9 plank set edgewise and confined b\ toe-nailing, , by nails driven obliquely through the lowercorners into the covering. These nails, crossing each other,have a sufficient holding power. The spaces or pocketsbetween the sleepers are then filled with gravel or whatevermaterial occurs in the canal, which material is placed in posi-tion, tamped, and levelled e\en w ith tlie tops of the the lining-plank are a])plicii. In applying this method LINING OR SHEATHING CANALS. 4° I to an existing canal, the material excavated in front of thework is brought back and dumped into the pockets. Holesmust be bored through the lining near the foot of the slopes forrelief of pressure. In applying a timber lining to a canal withside walls, the bottom is treated by either of the methodspointed out, and light timbers are bolted to the
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecthydraulicengineering
