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为了摸索予测予报地震的方法,对我省目前群测点普遍使用的金属园筒式土应力仪进行了加压模拟实验。 模拟实验条件 我们在平坦、土质较好的场地上,选择面积为60厘米×60厘米的一块地方,周围挖了宽50厘米、深40厘米的槽,使中间黄土柱失去自然围压。然后在黄土柱中心埋设75—Ⅰ型简易应力仪金属园筒式探头。用二台15吨千斤顶进行加压,用75—Ⅰ型简易应力仪每隔半分钟人工观测记录一次。 模拟实验结果 一、南北向正压实验
In order to explore the method of predicting the earthquake to be measured, a pressure simulation experiment was carried out on the metal cylindrical soil stress meter commonly used in the group measurement points in our province. Simulated experimental conditions We in the flat, soil better site, select an area of 60 cm × 60 cm a place around the dug 50 cm wide and 40 cm deep groove, so that the middle of the loss of natural pressure on the loess column pressure. Then buried in the center of the loess column 75-Ⅰ simple stress gauge metal cylindrical probe. With two 15-ton jack pressure, with 75-I-type simple stress meter every half-minute manual observation record. Simulation results of a test, positive and negative pressure test