Table 3 The general law of similarity of the model test.
Categories | Parameters | |||||
|---|---|---|---|---|---|---|
Geometric dimensions | Lining outer diameter | D | Cls=Dp/Dm | Segments thickness | t | Cls=tp/tm |
Lining inner diameter | r | Cls=rp/rm | Bolt diameter | d | Cl=dp/dm | |
Lining width | B | Cls=bp/bm | Bolt length | l | Cl=lp/lm | |
Deformation parameter | Segment stress | σs | Cσs=CEs | Segment strain | εs | Cεs |
Segment ring deflection | δs | Cδs=Cls | Segment ring angle | θs | Cθs | |
Material properties | Elastic modulus of segments | Es | CEs | Elastic modulus of bolts | Eb | CEb |
Poisson ratio of segments | µs | Cµs | Poisson ratio of bolts | µb | Cµb | |
Mechanical properties of materials | Bending stiffness of segments | EsLs | CEsIs=CEsCls4 | Bending stiffness of bolts | EbIb | CEbIb=CEbCl4 |
Shear stiffness of segments | GsAs | CGsAs=CEsCls2 | Shear stiffness of bolts | GbAb | CGbAb=CGbCl2 | |
Tension stiffness of segments | EsAs | CEsAs=CEsCls2 | Tension stiffness of bolts | EbAb | CEbAb=CEbCl2 | |
External loads | Concentrated load | F | CF=CEsCls2 | Uniform load | q | Cq=CEs |
Bending moment | M | CMs=CEsCls3 | ||||
Similarity constants | Cls | 15.5 | Cl | 15 | ||
CEs | 12.41 | CEb | 5.92 | |||
Cµs | 1 | Cµb | 1 | |||
Cεs | 1 | Cθs | 1 | |||
