Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Centrifuge Model Test for Buried Inner Rehabilitated Pipes Affected by Aging Pipes with Different Damage Levels
This paper discusses an experimental study on the pipe rehabilitation method for the purpose of establishing a fundamental design standard. In this method, as the new pipe is directly inserted into the aging pipe, there are several possibilities in terms of cost reduction. It is not clear how the damaged outer pipe mechanically influences the inner pipe through interaction with the surrounding soil when an external force is applied to the ground. In this study, centrifuge model tests for the buried pipe are carried out. The test results indicated that deformation mode of the new pipe largely depends on the damage level of the outer pipe. When the damage state is not serious, the outer pipe protects the inner pipe from deforming and behaves positively. However, the outer pipe, if at ultimate limit state, has almost no influence on the mechanical behavior of the inner pipe. Additionally, the concentration of stress within the inner pipe tends to occur at the position where there is cracking of the outer pipe in a certain damaged condition.
Centrifuge Model Test for Buried Inner Rehabilitated Pipes Affected by Aging Pipes with Different Damage Levels
This paper discusses an experimental study on the pipe rehabilitation method for the purpose of establishing a fundamental design standard. In this method, as the new pipe is directly inserted into the aging pipe, there are several possibilities in terms of cost reduction. It is not clear how the damaged outer pipe mechanically influences the inner pipe through interaction with the surrounding soil when an external force is applied to the ground. In this study, centrifuge model tests for the buried pipe are carried out. The test results indicated that deformation mode of the new pipe largely depends on the damage level of the outer pipe. When the damage state is not serious, the outer pipe protects the inner pipe from deforming and behaves positively. However, the outer pipe, if at ultimate limit state, has almost no influence on the mechanical behavior of the inner pipe. Additionally, the concentration of stress within the inner pipe tends to occur at the position where there is cracking of the outer pipe in a certain damaged condition.
Centrifuge Model Test for Buried Inner Rehabilitated Pipes Affected by Aging Pipes with Different Damage Levels
Ono, K. (Autor:in) / Inoue, K. (Autor:in) / Sawada, Y. (Autor:in) / Izumi, A. (Autor:in) / Sonoda, Y. (Autor:in) / Miki, T. (Autor:in) / Mohri, Y. (Autor:in) / Ling, H. I. (Autor:in) / Li, L. (Autor:in) / Hinobayashi, J. (Autor:in)
Pipelines 2014 ; 2014 ; Portland, Oregon
Pipelines 2014 ; 1040-1048
30.07.2014
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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