.—There aremany circumstances under which it becomes necessary to 306 RUDIMENTS OF THE lay the bottom dry before commencing operations. This isdone by inclosing the site of the foundation with a water-tight wall of timber, from within which the water can bepumped out by steam power or otherwise.… … required, the space between them being filled in with well-rammed puddle, so as to form a solid water-tight mass.(See fig 6.) The great difficulties in the construction of a Fig. 6.
Architecture · Building
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