论文部分内容阅读
一、序言尼灿(Nitssan,1977)报告,他观测到伴随压电性矿石微破裂的电磁波辐射。霍尼格和伊塔尼(Hoenig & Itani,1979)也提出由于岩石和陶瓷破裂而在试样内产生电流的报告。我们认为,上述的一些情况可能是由于地震或与之类似的岩石破裂而产生的某种电磁现象,并对此进行了实验。我们在岐阜县多治见市内的碎石场进行了观测,观测到伴随碎石爆破引起的地电位短周期变化和地震动。这个碎石场每次用100～200公斤的黄色炸药对页岩进行破碎,我们把电极设置在离爆破点非常近的地方进行观测。
I. INTRODUCTION Nisan (1977) reported that he observed the electromagnetic radiation accompanying the micro-cracking of piezoelectric ores. Hoenig & Itani (1979) also reported on the generation of current in a sample due to rupture of the rock and ceramic. In our opinion, some of the above may be the result of some electromagnetic phenomena caused by earthquakes or similar rock ruptures and have been tested on this. We observed the gravel field in Tajimi City, Gifu Prefecture and observed the short-period change of ground potential accompanied by gravel blasting and ground motion. The rock crusher shatters the shale with 100-200 kg of yellow explosives each time, and we set the electrodes very close to the blast point for observation.