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天津市地面沉降是典型的水资源短缺型地面沉降,要实现控制地面沉降的目的就要科学合理的制定年度地下水开采指标。该指标是控制地面沉降和地下水资源管理工作相结合的重要手段。深层地下水开采指标的计算通过多年实践验证,方法准确合理。
Tianjin land subsidence is a typical water shortage land subsidence, to achieve the purpose of controlling the land subsidence should be scientific and rational development of annual groundwater exploitation targets. This indicator is an important means of controlling the combination of land subsidence and groundwater resources management. The calculation of deep groundwater exploitation index has been verified by many years of practice and the method is accurate and reasonable.