Numerical simulation on tensile properties of Ω-shaped frozen pipe joint

In recent years, there were many accidents of frozen pipe broken in the civil engineering. This was a serious threat to the project. In order to solve the frozen pipe broken problem the tensile properties of the Ω-shaped frozen pipe joint were studied by numerical simulation method. It indicated that the joint has big elongation indicator and flexibility. The curved part straightens at first under the tension force. And the local occur destruction after the limit deformation. This Ω -shaped frozen pipe joint extends more than 10mm in axial orientation without damage. So this kind of joint has good flexibility in both axial and lateral direction. It can hold up the deformation by temperature, frost and excavation in the frozen wall. This can prevent frozen pipe from breaking. The Ω -shaped frozen pipe joint can been used widely in the civil engineering.