吴江地区浅层地下水可开采资源量评价

Shallow Groundwater Allowable Withdrawal Resources Assessment in Wujiang Area

为了评价吴江地区浅层地下水的可开采资源量,保障区内地下水资源的合理开发利用,在概化出了区内浅层地下水系统水文地质概念模型的基础上,根据渗流理论,建立了研究区浅层地下水系统三维非稳定流数值模型,评价了从2016年6月底起,以开采10a后浅层地下水水位不低于微承压含水层顶板,且水位越来越稳定为约束条件下的地下水允许开采量。结果表明:吴江地区浅层地下水可采资源量达1. 204×107m3/a,为吴江地区浅层地下水的合理开发利用提供了科学依据。

To assess shallow groundwater allowable withdrawal resources in the Wujiang area, ensure groundwater resources rational exploitation and utilization in the area. On the basis of area＇ s generalized hydrogeological conceptual model of shallow groundwater system, according to seepage theory , established study area shallow groundwater system 3 D unsteady flow numerical model. Then assessed groundwater allowable withdrawal from the end of June 2016 under the constraint condition of after 10 years withdrawn, shallow ground water level not lower than slightly confined aquifer roof, and water level increasingly stable. The result has shown that the shallow groundwater allowable withdrawal quantity in Wujiang area can be 1. 204 × 10 7m3/a as high, thus provided scientific basis for shallow groundwater rational exploitation and utilization in Wujiang area.