to a shacklepassing round the head of the pile, whilst the other passesthrough a cross-head, resting firmly on temporary supportsplaced on each side of the pile. 40. Cofferdams.—A cofferdam may be described as awater-tight wall, constructed round the site of any work, forthe purpose of laying dry… … • ART OF BUILDING. 315 filled with clay, and sunk in line round the space to be en-closed ; but in the majority of cases, the method is to drivetwo or more rows of close piling, and to fill up the space be-tween them with clay puddle. 41. Cofferdams are sometimes formed, in shallow water,with a…
Architecture · Building
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