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引言上海电信传输地震台网。14个地震测点中有9个是深井观测。几年来,除记录天然地震以外,还不断记录到炸药量很小的水下爆破,由此可以研究上海地区波在土质中与深井基岩中的传播速度。地震观测点设施及记录方式第四师范学院地震观测点是上海电信传输地震台网中9个深井观测点之一。位于上海市区的东南角(见图1),距离黄浦江水下爆破点1.08km(由1:5000地图上量得)。观测井深
Introduction Shanghai Telecom Transmission Seismic Network. Nine of the 14 earthquakes are deep-well observations. Over the past few years, in addition to recording natural earthquakes, underwater explosive explosives have been continuously recorded. Therefore, the propagation velocity of waves in earthwork and deep bedrock in Shanghai can be studied. Seismic observation point facilities and recording methods Fourth Normal College Seismological observation point is the Shanghai Telecom Transmission Seismic Network, one of nine deep well observation points. Located in the southeast corner of Shanghai’s downtown area (see Figure 1), it is 1.08km below the Huangpu River’s underwater blast point (measured on a 1: 5000 map). Observation well depth