Page 201 - Buried Pipe Design
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Design of Gravity Flow Pipes 175
B
B
A A
Vertical Soil Pressure, lb/in 2
Vertical Deflection
Horizontal Deflection
Pipe Deflection, %
Figure 3.56 Vertical soil pressure versus pipe deflection. (A) Soil box data, 90 percent
relative compaction, silty sand, and poor haunch support; (B) FEA with compaction
simulation and poor haunch support.
A
B
m in/in B
Strain,
–
A
Thrust Strain
–
Bending Strain
–
Position on Pipe, degrees
Figure 3.57 Pipe strain as a function of circumferential position, conditions as in Fig. 3.56.
