利用宁波水文地质监测井网建设地下流体前兆台阵的试验研究

从宁波水文地质监测井网中遴选了北仑井和慈溪井进行水位和水温试验性观测，分析计算水位的气压效率、降雨载荷效应和潮汐因子，并与同处于宁波盆地映震效果较好的庄市井的相应参数进行对比。结果表明：（1）3口水井的水位变化在时间上和空间上均有很好的相关性，水位异常动态与其影响因素之间存在很好的成因上的关联；（2）慈溪井的降雨载荷系数比庄市井和北仑井的大约小一个量级，这可能与慈溪井位于1960年代围海造田的滩涂地有关；（3）水井网均位于含有多个含水层的宁波盆地，为在同一构造中开展不同含水层观测和基础研究提供了可能，可以从井网中遴选出合格的地震前兆监测井，用于建设宁波盆地地震前兆流体台阵。

Experimental study on the construction of underground fluid precursorarray with Ningbo hydrogeological monitoring well network

The water level and water temperature of Beilun and Cixi wells from Ningbo hydrogeological monitoring well network were observed for the experimental study. The pressure efficiency of water level, the rainfall load effect, and the tidal factor of the two wells were calculated and compared with those of Zhuangshi well. The results showed that:(1) The water level changes of three wells have a good correlation in time and space, and there is a good genetic correlation between water level anomaly and its influencing factors. (2) The rainfall load factor of Cixi well is about an order of magnitude smaller than those of Zhuangshi and Beilun wells, which may be related to the location of Cixi well. (3) The wells are located in the Ningbo Basin with multiple aquifers, which makes it possible to carry out observation and basic research of different aquifers in the same structure. Qualified seismic precursor monitoring wells can be selected from the network for the construction of seismic precursor fluid array in the Ningbo Basin.