陇06井水位动态特征及影响因素分析

Analysis of water level dynamic characteristics and influence factors of Long No.06 well

应用陇06井多年观测资料分析水位动态特征,结果显示:该井水位存在"夏高冬低"的年动态特征,其变幅约为0.6 m;水位固体潮形态清晰,潮汐因子均值在2.5上下变化,具有明显的半日波、全日波、半月波等周期成分,朔望前后固体潮日变化幅度可达0.15 m。对影响因素进行分析,结果表明:同震影响特征为阶跃式下降及固体潮形态畸变;降雨与水位的相关性显著,属短期影响;气压与水位呈为负相关;气温与水位存在相似的年动态变化特征,但相关性不显著。

Based on the observation data of Long No.06 well for many years and the analysis of the dynamic characteristics of water level,the results show that the water level of the well has the annual dynamic characteristics of“high in summer and low in winter”and its variation amplitude is about 0.6 m.The shape of the water level solid tide is clear and the mean value of the tide factor is about 2.5.It has obvious periodic components such as semi-diurnal waves,diurnal waves,and semi-monthly waves.The daily variation range of the solid tide before and after the syzygial period can reach 0.15 m.The results of influencing factors analysis show that the influence characteristics of co-seismic are step-by-step decline and cause distortion of the solid tide.The correlation between rainfall and water level is the most significant,which belongs to short-term influence.The air pressure and water level are negatively correlated.The annual dynamic characteristics of air temperature and water level are similar,but the correlation is not significant.