【摘要】 介绍了地下管道震害分析的方法、管道锈蚀作用的原因及危害,并从数值分析的角度出发,分析了震害预测中埋深、壁厚、水压力等参数变化对预测结果的影响。结果表明,管道的组合轴向变形与管长和水内压呈线性正相关,与管道埋深呈线性负相关;地下管道的锈蚀作用使管道壁厚变小,地震发生时更易遭到破坏,需要采取相应的措施减小管道锈蚀带来的震害影响。更多还原

【Abstract】 The analysis method of seismic damage for underground pipeline,reasons of pipe corrosion and harmfulness were introduced,and the influencing factors of depth,wall thickness,water pressure on the result of prediction were analyzed from point of view of numerical analysis.The result showed that the combined axial deformation presented linear positive correlative property with length and internal water pressure,and presented linear negative correlation with depth.Wall thickness became thin due to pipe corrosion and the pipeline was easily damaged in the earthquake,therefore measures should be taken to reduce seismic damage of pipe corrosion.更多还原