降雨对土层标与基岩标影响的差异性分析

摘要

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.%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.