EARTHQUAKE RISK ANALYSIS IN THE ENGINEERING AREA OF BOHAI STRAIT CROSS-SEA CHANNEL
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摘要: 研究渤海海峡地区区域历史地震时空分布特征,分析渤海海峡地区的地震发生位置及其发震规律,论述历史地震对工程场地的影响,为渤海海峡跨海通道的选址提供依据,使选址时尽量避开活动断层以减少地震对跨海通道的影响,增加评判工程稳定性的因子,使评判结论更加可靠。Abstract: Spatial temporal features for regional historical earthquake of Bohai Strait area has been studied, and location and law of the earthquake been analyzed. We discussed the impact of the historical earthquake to the construction area, and provided a theoretical basis for the site choice of the Bohai Strait Cross-Sea Channel, so that the construction area could avoid active faults to the greatest extent, reduced the influence of earthquake to the Bohai Strait Cross-Sea Channel, increased the factor of engineering stable judgment, and made the evaluation more exactly and reliable.
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Key words:
- Bohai Strait Cross-Sea Channel /
- earthquake /
- risk analysis /
- earthquake trend /
- prediction
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表 1 渤海地区Ms≥2.0级地震统计
Table 1. Seismic classification statistical table for the area of Bohai
表 2 海城地震等震线参数
Table 2. Isoseismal parameter of Haicheng earthquake
表 3 工程区震级-频度关系拟合曲线
Table 3. Fitting curve of magnitude to frequency for the construction area
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