Optimization Design and Application of Underground Reinforced Concrete Bifurcation Pipe

Table 2

Value range of design variables.

Optimization variables	Range
Bifurcation angle	50~70°
Half angle of main cone	2~5°
Half angle of branch cone	2~5°
Main cone wall thickness	0.5~1 m
Branch cone wall thickness	0.5~1 m
Branch cone wall thickness	0.5~1 m