开采条件下山东德州深层水资源组成及其与地面沉降的关系

针对德州长期过量开采深层水导致地下水位不断下降、地面沉降等环境地质问题,以深层地下水动态、地面沉降监测及其对应的粘性地层为主要研究对象,应用水文地球化学、地下水动力学和同位素技术方法,初步查明深层水主要形成于末次冰期盛期的大气降水补给;考虑地面沉降条件下,开采资源中20.6%的侧向径流补给和越流补给来自区域径流系统,反映深层地下水具有一定的更新能力;含水层弹性释水占17.5%,其中61.9%来自粘性土的压密释水,这是产生地面沉降的直接原因。

Relationship between deep groundwater resources composition and land subsidence under the condition of exploitation in Dezhou, Shandong, China

Aimed at continuous drawdown of ground water table resulted from over-exploitation,land subsidence and other geo-environmental problems,this paper selected deep groundwater and land subsidence monitoring and corresponding clay layers as main objects. Using hydrogeochemical,groundwater dynamic methods and isotopic technology,the paper made following research. Storage resources of deep groundwater in Dezhou were mainly from precipitation recharge in the last glacial period. Under the conditions of land subsid...