Investigation and analysis on the cause of the sharpdrop of water level in well Yu-01

Abstract

Based on the analysis of the 39-year water level dynamic trend of groundwater in well Yu-01，combined with the investigation of the surrounding observation environment and the analysis of the recharge and discharge of groundwater in the aquifer of well Yu-01，it is concluded that the main factors causing the steep trend decline of water level in well Yu-01 since 2006 are the large-scale exploitation and utilization of groundwater，followed by coal mining and drainage，and the removal of earthquake precursor anomalies.

Keywords

• water level decline
• groundwater exploitation
• water level dynamic characteristics
• coal mining drainage