ABSTRACT
Figure 12-1 Procedure for conducting the three-edge-bearing (TEB) test on rigid pipes. The load at failure per unit length of pipe is called the D-LOAD.
Figure 12-2 Rigid pipe showing (left) how the ring is forced to support the weight of backfill, W, if the sidefill soil is not compacted; and (right) the basis for the Marston load analysis.
