【摘要】 根据深层地下水资源组成和粘性土固结程度分析,第四系中更新统和下更新统是天津深层地下水的最佳开采层位。当集中在最佳开采层位开采地下水,地面沉降量控制在10mm/a以内,天津深层地下水的安全水位埋深为35~45m,安全开采量为26755×104m3/a,平均资源模数为2.90×104m3/a·km2。更多还原

【Abstract】 On the basis of the composition of deep groundwater resources and the consolidation rate of cohesive clays, middle and lower Pleistocene series is the optimal pumping stratum for the deep groundwater in Tianjin. While pumping groundwater centralize on the optimal stratum, the consequent total land subsidence will be controlled inside of 10mm/a, the safe groundwater level is 35-45m deep and the safe output of the deep groundwater is 26755×104m3/a and average resources modulus is 2.9×104m3/a·km2.更多还原