燃气管网地震破坏快速评估方法研究

针对燃气管网基础资料难以获取的实际情况，利用有限数据开展燃气管网地震破坏的快速评估方法研究。基于历史震害统计分析结果，修订了燃气管网地震破坏等级划分方法；当燃气管网震害率模型不完备时，提出了类比供水管网震害率模型获得燃气管网震害率模型的方法。以东部发达城市上海市和西部石油城市新疆克拉玛依市为列，评估了2个城市在不同地震影响烈度下燃气管网的地震破坏情况，评估结果完全符合地震现场调查结论。

Study on rapid evaluation method for seismic damage of gas pipeline network

For the very difficult situation of getting the basic engineering data, the rapid evaluation method for seismic damage of gas pipeline network is improved by using the limited data in this paper. Based on the statistical analysis result of historical seismic damage, the classification of seismic damage level of gas pipeline network is revised. For the incomplete seismic damage ratio model of gas pipeline network, the analogy method is proposed for the rapid evaluation according to the seismic damage ratio model of water pipeline network. The gas pipeline networks in an eastern developed city Shanghai and a western petroleum city Karamay were selected for examples, and their seismic damage levels were evaluated under different earthquake intensities. The results of both networks agree well with the conclusions of earthquake site investigation.