. Journal of the New England Water Works Association . Driving compieied Sequence of Operation Driving Sheet Pimm;. and adjoining members of the first set were down to the surface of theground, the end piles being always left stepped-up in approximately 4 As required, additional lengths of piling were spliced on top of the lowerset by means of a 7-in. channel and a f-in. x ()^-in. plate, bolt-holes to lit be-ing previously punched in the ends of the piles. In this manner, by gradu-ally working the wall down with its bottom to a slanting line, one of thesteel members finally intersect
. Journal of the New England Water Works Association . Driving compieied Sequence of Operation Driving Sheet Pimm;. and adjoining members of the first set were down to the surface of theground, the end piles being always left stepped-up in approximately 4 As required, additional lengths of piling were spliced on top of the lowerset by means of a 7-in. channel and a f-in. x ()^-in. plate, bolt-holes to lit be-ing previously punched in the ends of the piles. In this manner, by gradu-ally working the wall down with its bottom to a slanting line, one of thesteel members finally intersected the line of rising rock as shown moreclearly on the diagram. While the first frame was set up over the deepesipoint, the first pile to strike rock was some 50 ft. to the south. Drivingto rock continued then until the rock outcrop at the noil h end of the damwas reached. The lengths of piles to be driven were at first determined by scalefrom the rock profile developed by the original borings, hut on account ofthe great unevenness of the rock it was
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Keywords: ., bookcentury1900, bookdecade1920, bookidjournalofnew, bookyear1922
