【摘要】 选取汶川Ms8.0、日本Ms9.0、印尼Ms8.6、巴基斯坦Ms7.8四个远大地震,从"一震多井"和"一井多震"的角度分析河北省地下流体不同井孔水位的响应特征,探讨水位变化的机理。结果表明:水位同震响应形态以水震波为主,部分为水震波伴随阶变或只有阶变;同一口井的水位同震阶变方向是固定不变的,水位阶跃上升集中区可能就是未来地震危险区;含水层岩性为灰岩或花岗岩,导水系数大、渗透性能好的井孔水位同震响应幅度大;震中距相近时,不同井孔水位的同震响应时间有很大差异,含水层岩体结构的不同是主导因素;峰4井水位的映震能力近几年在逐渐增强。更多还原

【Abstract】 The authors select our great earthquakes: Wenchuan Ms8. 0,Japan Ms8. 6,Indonesia Ms8. 6,and Pakistan Ms7. 8. From "an earthquake many wells"and "a well many earthquakes"perspectives,we analyze coseismic response characteristics of different borehole water level of Hebei subsurface fluid and investigate the mechanism of water level changes. The results show: the co-seismic response forms of water level are mainly water waves,and part of the water waves is accompanied by step changes or only step changes; the co-seismic step change direction of the same well water level is fixed,and the clusters of water level step rise may be the seismic hazard zone in the future; if the aquifer lithology is limestone or granite,hydraulic conductivity coefficient is larger,and permeability better,the margin of borehole water level is larger; water levels co-seismic response times of different borehole are very different when the epicentral distance is similar,different aquifer rock structures are the dominant factor; reflecting capacity of Feng-4 well water level is gradually increasing in recent years.更多还原