Page 53 - Buried Pipe Design
P. 53

External Loads  31

                                                    W



                               L
                                         W





                                                WL 2
                                          M max
                                                 12
         Figure 2.14 Longitudinal bending of conduits.



                                             W

                            L



                                                  WL 2
                                             M max  8

         Figure 2.15 Longitudinal bending of conduits.


                                       W


                      L          L
                                       W





                                                WL 2
                                          M max
                                                 8
         Figure 2.16 Longitudinal bending of conduits.



         where D   nominal pipe diameter
                 t   pipe thickness
                R   radius of curvature of longitudinally deflected pipe
              	y
                    ring deflection
               D
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