介休井水位异常的调查与分析

The Investigation and Analysis of the Anomalous Variations of Water Level in Jiexiu Well

从井孔周围地下水开采量变化、大气降雨补给量变化、农田灌溉用水量变化、矿井塌方、涌水、排水和地震活动等影响因素入手 ,对 1999年至 2 0 0 0年间介休井水位的 2次突降原因进行了调查。通过初步分析 ,表明介休井水位阶降型异常具有一定的震兆性质 ,其水位的缓慢上升与突然阶降意味着介休地区断裂活动在加速。其地震预测的意义是未来一段时间山西地震带内有发生MS≥ 5

An investigation of the cause of twice abrupt descents of water level in Jiexiu Well during the period from 1999 to 2000 was made based on the following influential factors:①the variation of the exploitation quantity of groundwater.②the variation of supplementary quantity of rainfall.③the water consumption of farmland irrigation.④the gush,the drainage,the collapse of mine and the seismic activities.The preliminary results show that the anomalous descent of water level signifies a certain kind of character of earthquake precursor.The slow ascent and abrupt descent mean the acceleration of fault activities in Jiexiu region.Then,there exits a possibility of the earthquake(M S≥5.0)occurrence in Shanxi Province in a certain period in future.