Page 233 - Moving the Earth_ The Workbook of Excavation
P. 233

DITCHING AND DEWATERING

                                                                               DITCHING AND DEWATERING  5.35
























































                                  FIGURE 5.24  Recommended gauges for corrugated pipe.



                                    Pipe should not be dragged around on abrasive ground or scratched or banged against any-
                                  thing, as such abuse will damage the galvanizing and shorten the life of the metal.
                                    It is lowered into trenches in the same manner as it is unloaded.
                                  Foundation.  The base should be shaped to fit the lower part of the pipe as closely as possible,
                                  by cutting the ground to shape, or building up with well-tamped fill. The work can be checked by
                                  placing and removing the pipe, and noting whether it was in full contact.
   228   229   230   231   232   233   234   235   236   237   238