These seismic analysis method of buried pipeline crossing fault in engineering practice are discussed and the current seismic measures for pipeline engineering in China are recommended.
对常用的跨断层管道抗震分析方法进行了评述，并列举了我国管道工程中可行的抗震措施。
Sag state estimation observability analysis is modeled and correlative modification method is proposed from the point of fault current superimposing firstly.
基于故障电流叠加原理，构造了电压跌落状态估计可观性分析的数学模型，合理地解决了部分故障路段不可观的问题。
Wavelet transform was proved to be a suitable tool for the analysis of travelling waves and is utilized here to extract fault information from current travelling waves and implement protection scheme.
小波变换作为新的数学分支，在这里用来提取电流行波信号中的故障信息，实现原理方案。
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