Evaluation of a . c . corrosion likelihood of buried pipelines - application to cathodically protected pipelines ; german version cen ts 15280 : 2006 评估地下管线的交流最大腐蚀可能性.用于阴极保护管线
Through the parametric studies , the inelastic behavior of a buried pipeline differs so much from that of the beam or ca 由于实际中针对每一个通过断层的管子做三维的壳模型有限元分折是颇费时间的，为了
Therefore , in this paper , the mechanical characteristics of buried pipelines under transportation loads are calculated and analyzed 有鉴于此，本文对交通荷载作用下埋地管道的力学性状进行了计算和分析。
The study we ' ve done in the paper also has its significance in preventing the buried pipelines " leak and the spread of the leakage , 对于埋地热力管道泄漏事故的早期发现及防止泄漏的扩散具有重要的实际意义。
As the importance and particularity of fault to buried pipeline ’ s damage , further investigations of buried pipeline damage crossing fault analyze 由于断层对管道破坏的重要性和特殊性,对跨断层地下管道的破坏做了深入分析。
2 . three - dimensional calculation and analysis of mises stress and vertical displacement of buried pipelines under three different kinds of transportation loads are carried out 对三种不同的交通荷载作用下管道的mises应力和竖向位移进行了三维计算和分析。
The buried pipeline ’ s damage under dynamic loading is analyzed through numerical simulation method on the basis of automatic dynamic incremental nonlinear analysis ( adina ) 本文主要是应用有限元分析软件adina对地下管道在动荷载作用下的破坏进行数值模拟。
This research can offer some scientific references not only for detecting the leak of buried pipelines , but also for the arrangement of fiber sensors in leak detecting 这项研究为将来埋地热力管道泄漏检测提供了科学根据，为进一步布置泄漏检测的光纤传感器提供布点的依据。
Equivalent circuit model corresponding to buried pipeline system is analyzed , which laid firm foundations of electrochemistry theory application to the detection of pipeline coating faults 研究了埋地管道体系的等效电路模型，为将电化学理论应用于管道涂层缺陷检测打下了坚实基础。
As usually mild steel is chosen to be the material of pipelines , the external corrosion of steel becomes one important problem of influencing the reliability and the lifetime of buried pipeline system 管材大多选用低碳钢，影响埋地钢质管道可靠性和使用寿命的关键因素是管道金属的腐蚀。
