宁夏石嘴山柳条沟地区水文地质特征及地下水分布规律研究
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摘要
在充分收集以往钻孔资料的基础上,结合物探和水文钻探工作,对柳条沟地区水文地质条件、地层构造、地下水分布及水化学特征开展分析研究,查明研究区第四系厚度及240 m以上地下水含水层的分布特征和补、迳、排条件。结果得出:研究区内堆积了120～340 m第四系洪积相粗粒松散堆积物,地下水含水岩组分为第四系松散岩类孔隙潜水和新近系碎屑岩类孔隙裂隙水两大类,大部分地区地下水富水性强,水质优良,溶解性总固体均小于1.0 g/L;研究区地下水补给来源主要为贺兰山区基岩裂隙水的侧向径流补给,次为山洪的散失补给和大气降水垂直入渗补给;排泄方式主要是人工开采和侧向径流排泄,地下水主要化学类型为HSnc型和HScn型。
Based on the thorough collection of previous drilling data, combined with geophysical exploration and hydrological drilling, the hydrogeological conditions, stratigraphic structure, groundwater distribution and water chemistry characteristics of the Liutiaogou area were analyzed and the Quaternary thickness of the study area was ascertained. And the distribution characteristics of groundwater aquifers above 240 m and the conditions of complement, enthalpy and discharge. The results show that the Quaternary alluvial facies coarse-grained deposits of 120～340 m are accumulated in the study area. The groundwater hydrous components are the Quaternary loose rock pores and the Neogene clastic rocks. In most areas, groundwater is rich in water and water quality, and the total dissolved solids are less than 1.0 g/L. The source of groundwater recharge in the study area is mainly the lateral runoff recharge of bedrock fissure water in Helan Mountain area, followed by the loss of mountain torrents. Vertical infiltration replenishment with atmospheric precipitation; excretion methods are mainly artificial mining and lateral runoff drainage, and the main chemical types of groundwater are HSnc and HScn.
Based on the thorough collection of previous drilling data, combined with geophysical exploration and hydrological drilling, the hydrogeological conditions, stratigraphic structure, groundwater distribution and water chemistry characteristics of the Liutiaogou area were analyzed and the Quaternary thickness of the study area was ascertained. And the distribution characteristics of groundwater aquifers above 240 m and the conditions of complement, enthalpy and discharge. The results show that the Quaternary alluvial facies coarse-grained deposits of 120～340 m are accumulated in the study area. The groundwater hydrous components are the Quaternary loose rock pores and the Neogene clastic rocks. In most areas, groundwater is rich in water and water quality, and the total dissolved solids are less than 1.0 g/L. The source of groundwater recharge in the study area is mainly the lateral runoff recharge of bedrock fissure water in Helan Mountain area, followed by the loss of mountain torrents. Vertical infiltration replenishment with atmospheric precipitation; excretion methods are mainly artificial mining and lateral runoff drainage, and the main chemical types of groundwater are HSnc and HScn.
引文
[1]宁夏回族自治区地质调查院.中国区域地质志·宁夏志.地质出版社.2017.
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[4] 张兆迪,于开宁,刘景涛.银川平原水化学特征分析[J].水文地质工程地质.2017(02).
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[6]李志红,胡伏生,周文生,等.银川地区承压水水化学特征及控制因素[J].水文地质工程地质.2017(02).
[2]尹秉喜.银川平原地下水补给及水质分布综合研究[D].中国地质大学(北京).2006.
[3]薛奇.银川平原地下水补径排特征及其变化规律[J].地质灾害与环境保护.2011.22(01):56-62.
[4] 张兆迪,于开宁,刘景涛.银川平原水化学特征分析[J].水文地质工程地质.2017(02).
[5]荆秀艳,王文科,张福存,等.银北平原浅层地下水的水化学特征及成因分析[J].人民黄河.2012(01).
[6]李志红,胡伏生,周文生,等.银川地区承压水水化学特征及控制因素[J].水文地质工程地质.2017(02).
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