CAJ | 학술논문

对宁夏海原小山yRy-4型钻孔应变仪进行实地相对标定后，数据比标定前有明显好转，资料的相关性显著增强，这验证了海原小山钻孔应变观测资料具有较高的可信度。相对标定后的潮汐因子灵敏度明显提高，稳定度明显改善，出现显著的同步变化趋势，相关性明显增强，各元件均有正常背景。对比钻孔应变各元件观测数据变化曲线，在固原ML3.8级与定西ML6.6级地震震前出现的扭曲、转折、恢复现象，是地震前地下应变积累和调整所致，表现出明显震前的短临异常变化。释放能量较小的地震，曲线扭曲、下降、转折的异常变化幅度较小，反之变化较剧烈，但短临异常变化的时间基本在震前10至15天之间。
대저하해원소산yRy-4형찬공응변의진행실지상대표정후，수거비표정전유명현호전，자료적상관성현저증강，저험증료해원소산찬공응변관측자료구유교고적가신도。상대표정후적조석인자령민도명현제고，은정도명현개선，출현현저적동보변화추세，상관성명현증강，각원건균유정상배경。대비찬공응변각원건관측수거변화곡선，재고원ML3.8급여정서ML6.6급지진진전출현적뉴곡、전절、회복현상，시지진전지하응변적루화조정소치，표현출명현진전적단림이상변화。석방능량교소적지진，곡선뉴곡、하강、전절적이상변화폭도교소，반지변화교극렬，단단림이상변화적시간기본재진전10지15천지간。
haiyuan ningxia hill yRy - 4 field relative borehole strain meter calibration, data has obvious improvement than before calibration, data correlation significantly enhanced, borehole strain observation data to verify the hill has high credibility.Relative calibration after tidal factor to obviously improve the sensitivity, stability, synchronous change trend of significant, correlation enhancement, each element has the normal background.Contrast borehole strain curves of each element observation data, the evalution ML3.8 level and dingxi ML6.6 preceded an earthquake of magnitude of the phenomenon of twist, twist, restore, are caused by underground strain accumulation and adjustment before the earthquake showed obvious changes in the short.Smaller earthquakes release energy, curve distortion, variations in the anomalies of down, turning small, conversely change is severe, but changes in the short time basic between 10 to 15 days before the earthquake.