Analysis of Water Level Step-down Anomaly of Shiquan Well in Shaanxi Province
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摘要: 针对陕西石泉井水位多次出现的阶降变化,从观测仪器、井孔装置、周边地下水开采、区域降雨、井区河流及水库水位变化、地震影响等方面进行了分析。结果表明,石泉井区附近的石泉水库放水和汉江水位升降会造成石泉井水位的突升—突降变化,但石泉井水位出现的系列阶降变化与仪器故障、地下水开采、井管漏水、远场大震同震效应、区域应力变化以及附近河流水库水位变化等因素均无关。Abstract: In view of the frequent step-down changes of water level in Shiquan well in Shaanxi Province, the observational instruments, wellbore devices, surrounding groundwater exploitation, regional rainfall, well water and reservoir water level changes, and seismic impacts were analyzed. The results show that the Shiquan reservoir discharge near the Shiquanjing area and the elevation of the Hanjiang water level will cause the sudden rise-deep change of the Shiquan well water level, but the series of step-down changes of the water level of Shiquan well have nothing to do with instrument failure, groundwater exploitation, well pipe leakage, co-seismic effect of far-field large earthquakes, regional stress changes, and changes in reservoir water levels in nearby rivers.
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Key words:
- water level /
- step-down changes /
- interference factor
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