【摘要】 怀来台体积式钻孔应变仪安装于1988年,以应变固体潮为主要观测目标。多年来,取得了连续完整高质量的观测资料。本文列举了怀来钻孔应变的台址背景及仪器观测条件;分析了实际观测中钻孔应变资料受仪器零漂、气压、水位、降雨等因素的干扰;研究了钻孔应变在本区及邻区震前出现的记录曲线畸变、潮汐因子异常、应变固体潮畸变等不同形式的异常变化并对其进行特征分析。研究表明,钻孔应变观测是获取构造活动异常变化信息,进行地球物理研究、地震预测预报的有效途径。更多还原

【Abstract】 In this paper,the address background and instrument observation condition about the borehole strain in Huailai Seismic Station are listed.The interference in actual observation in the borehole strain by instrument zero drift,air pressure,water level,rainfall and other factors is analyzed.The abnormal changes,such as record curve aberrance,tide factor anomaly and stain solid tide distortion,occurred in borehole stain observations before earthquakes,and their characteristics are studied.The result shows that,borehole Strain observation is an effective way in getting abnormal change information about tectonic activity and geophysical research and earthquake prediction.更多还原