Shock and Vibration / 2019 / Article / Tab 1

Research Article

A Study on Seismic Isolation of Shield Tunnel Using Quasi-Static Finite Element Method

Table 1

Equivalent stiffness of the shield tunnel.

Segment ring widthLsm1.0
Segment sectional areaAsm23.81
Segment sectional inertia momentIsm411.23
Segment elastic modulusEskPa3.75 × 107
Sum of tension stiffness of ring jointsKjkN/m4.83 × 106
Equivalent compression stiffnesskN1.43 × 108
Equivalent tension stiffnesskN4.67 × 106
Equivalent bending stiffnesskN·m23.59 × 1015

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