Advances in Materials Science and Engineering / 2018 / Article / Tab 3

Research Article

Elastic Analysis of Nonhomogeneous Frozen Wall under Nonaxisymmetric Ground Stress Field and in State of Unloading

Table 3

Circumferential stress and radial displacement of the inner edge for the IF model and HF model under different freezing modes.

Freezing modesFormation conditionsLocationsReduction rates (%)
IF modelHF modelIF modelHF model

Single-circle pipes1−2.176−2.263−0.0612−0.0638−3.84−4.04
−0.846−0.900−0.216−0.220−5.57−1.66
2−2.372−2.544−1.137−1.250−6.74−9.05
−0.724−0.827−5.077−5.200−12.41−2.37

Double-circle pipes1−2.051−2.202−0.0585−0.0582−6.890.40
−0.808−0.885−0.192−0.193−8.70−0.526
2−2.087−2.361−1.209−1.207−11.59−0.163
−0.695−0.841−4.008−4.030−17.36−0.549

Triple-circle pipes1−1.975−2.149−0.059−0.055−8.126.86
−0.803−0.885−0.178−0.176−9.321.41
2−1.933−2.233−1.281−1.161−13.4110.35
−0.706−0.861−3.48−3.41−18.032.20

PS: reduction rate = (IF model − HF model)/HF model × 100%.