Abstract
Abstract: The bending and damage suffered by the pipelines during the upward movement depend largely on the displacement of the pipe and the damage degree of the surrounding soil. According to the failure mechanism of pipeline moving up, this paper described the shear plane development of the uplifting load-displacement curve (LDC) across varying phases. However, the existing LDC model is not able to accurately calculate the change in overlying load during pipeline upward. Hence, to precisely determine the uplifting load of the pipeline, a composite power-exponential function (CPEF) is proposed. Additionally, modifications have been made to the calculation formula for the residual uplifting load. The proposed CPEF comprises four parameters: a, b, c, and d. To verify the validity of the proposed CPEF model, the experimental results of the model are compared with the calculated results of the proposed CPEF, which show that the proposed CPEF model can well predict the entire process of uplifting load changes on the pipeline during the upward movement process. Finally, the influence of parameters on the LDC calculated by CPEF under the same conditions was analyzed by varying the parameters of CPEF.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callSimilar Papers
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
