降雨对土层标与基岩标影响的差异性分析
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摘要
通过对南京地震台短水准测量中的基岩标志和土层标石的抗干扰分析,发现:温度、气压的影响可以通过改变观测时间段来尽量减小,使其对两类观测点观测资料没有明显影响;降雨量大小对基岩点的影响很弱,对土石点影响较大,则没办法消除。表明,在选择好的观测场地的同时,也要根据观测资料的需要埋设合理的测点标志类型。
Through the analysis on anti-jamming of bedrock flag and soil stone in the short standard of Nanjing Seismic Station,it is found that:the influence of temperature,barometric pressure can be eliminated by changing the observation period,making the effect on the two types of observation points significantly minimized.The effect of rainfall on the bedrock point is very weak,but large on the debris point and can never be eliminated.Our study suggests that for the quality of observation data,it is necessary to choose good observation sites,meanwhile properly plant measuring point marks.
Through the analysis on anti-jamming of bedrock flag and soil stone in the short standard of Nanjing Seismic Station,it is found that:the influence of temperature,barometric pressure can be eliminated by changing the observation period,making the effect on the two types of observation points significantly minimized.The effect of rainfall on the bedrock point is very weak,but large on the debris point and can never be eliminated.Our study suggests that for the quality of observation data,it is necessary to choose good observation sites,meanwhile properly plant measuring point marks.
引文
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李杰,等.桃花吐短水准干扰因素的再研究[J].东北地震研究,1998,14(2):28-34.
梁伟锋,等.测点周围环境变化对重力观测影响研究[J].地震地磁观测与研究,2005,26(3):50-55.
陆明勇,等.地壳变形与地下水相互作用及其异常关系初探[J].地震,2005,25(1):67-73.
张四新,等.跨断裂水准剖面观测在地震监测中的应用[J].地震地磁观测与研究,2005,26(4):22-28.
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