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通过长期监测,研究该区域地下水控采后的地面沉降特点和趋势。数据分析发现随着开采大幅减少,水位回升明显,地面沉降呈同步快速减缓;地面沉降由区域性沉降向城市和重点工程建设区等局部点状或小范围沉降发展的趋势;工程性地面沉降的监测与防治应成为今后地面沉降防治工作的重点;同时在控制地面沉降的前提下,尚可开采一定的地下水作为生活和应急供水水源。
Through long-term monitoring, we study the characteristics and trend of ground subsidence after groundwater control and mining in this area. The data analysis shows that with the drastic reduction of mining, the water level picks up obviously and the ground subsidence shows a rapid and synchronous slowdown. The trend of land subsidence from regional subsidence to some point-like or small subsidence in cities and key construction areas; the development of engineering subsidence Monitoring and prevention should become the focus of prevention and control of land subsidence in the future. At the same time, under the premise of controlling land subsidence, certain groundwater can still be exploited for living and emergency water supply.