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Issue:ISSN 1006-5539
          CN 51-1183/TE


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A new proposal for simplified design of buried gas pipeline crossing active faults
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Abstract:To save time and better calculate the response of the buried gas pipeline crossing faults, both the responses crossing normal fault and reverse fault are analyzed based on the mechanical models. The linear fitting and nonlinear fitting are used to make the parameters including the diameter, wall thickness, burial depth, pipeline material, crossing angle, soil stiffness as well as internal pressure dealt with dimensionless method. A simplified formula to calculate the maximal strain value of the gas pipeline was proposed in consideration that the plastic strain concentration and buckling will happen. The formula was validated by comparing the calculation results of the simplified formula with some other formulas such as Takada-Hassani formula which are from the published literature.
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