摘要
为了缓解新乡市小店工业园区地下水水位持续下降问题,避免工业园区与周围村镇居民生活和农业灌溉用水矛盾加剧,采用柳青河地表水回渗与管井回灌2种试验方法,探讨补充浅层地下水有效水量的可行方法。该区包气带岩性为粉细砂、粉土,试验目的层为浅层含水层(第Ⅰ含水层组),其岩性为细砂、中砂和粗砂,上部包气带地层孔隙与下部浅层含水层孔隙连通性较好,有利于地表河流回渗补给地下水,地表回渗试验效果显著。管井回灌量选用与之对应的抽水时的单位涌水量,试验第Ⅰ含水层组的回灌能力,单位回灌量与单位涌水量之比小于50%,说明第Ⅰ含水层组回灌能力较差,不适宜本地区或类似地区。
In order to alleviate the continuous decline of the water level of the landing funnel caused by the exploitation of shallow groundwater in Xiaodian Industrial Park of Xinxiang City,and to avoid the intensification of the contradiction between the industrial park and the residents'living and agricultural irrigation water in the surrounding villages and towns,two research methods were adopted:surface water infiltration of Liuqing River with perennial water and pipe-well recharge test,so as to supplement the effective water quantity of shallow groundwater in this area.The experimental results show that the lithology of the vadose zone in this area is silty fine sand and silt,and the shallow aquifer of the test target layer(the first aquifer group)is fine sand,medium sand and coarse sand.The porosity of the upper envelope is better connected with the porosity of the lower shallow aquifer,which is conducive to surface river infiltration to recharge groundwater,and has achieved satisfactory results in the surface infiltration test.The corresponding unit water inflow during pumping was selected for tube well recharge,and the recharge capacity of the first aquifer group was tested.The ratio of unit recharge to unit water inflow was less than 50%,which indicated that the first aquifer group had poor recharge capacity and was not suitable for local or similar areas.
作者
庞宇飞
康剑
赵冠
PANG Yufei;KANG Jian;ZHAO Guan(Henan geological and mineral group Zhonghao Construction Engineering Co.,Ltd.,Zhengzhou 450007,Henan,China)
出处
《城市地质》
2021年第4期454-458,共5页
Urban Geology
关键词
地表回渗
管井回灌
试验效果
surface infiltration
pipe well recharge
test effect
