含水岩组概化的累积导水系数法

发布时间：2018-06-16 15:11

  本文选题：含水岩组 + 累积导水系数法　； 参考：《地球科学》2017年05期

【摘要】：地下水流系统理论和数值模拟技术分别是水文地质学的基本理论和技术方法,含水岩组的概化是地下水流系统分析和地下水数值模拟的重要基础,直接影响着数值模拟和水流系统分析的精度和可信度.为提高含水岩组概化的精度和可信度,提出一种含水岩组概化的新方法,即累积导水系数法.依据岩层厚度与渗透系数乘积累积值随深度的变化,以及水文地质剖面岩性分布的整体特征,概化含水介质结构.以玛纳斯河流域为例,应用该方法概化流域内的岩性剖面,结合GMS软件中TINS模块构建水文地质结构模型.结果表明,应用该方法概化后的含水层结构具有较好的合理性和仿真性,建立的三维模型很好地显示了研究区含水介质的空间展布特征,为建立地下水流模型奠定了良好的基础.
[Abstract]:The theory of groundwater flow system and numerical simulation technology are the basic theories and technical methods of hydrogeology, respectively. The generalization of water-bearing rock group is the important foundation of groundwater flow system analysis and groundwater numerical simulation. The accuracy and reliability of numerical simulation and flow system analysis are directly affected. In order to improve the accuracy and reliability of generalizability of water-bearing rocks, a new method of generalization of water-bearing rock groups, the cumulative water conductivity method, is proposed. The structure of water-bearing medium is generalized according to the variation of the cumulative value of the thickness of rock layer and the product of permeability coefficient with the change of depth, as well as the overall characteristics of lithology distribution in hydrogeological profile. Taking Manas River basin as an example, this method is applied to generalize the lithologic profile of the basin, and the hydrogeological structure model is constructed by using the Tins module in the GMS software. The results show that the generalized aquifer structure with this method has good rationality and simulation, and the three-dimensional model well shows the spatial distribution characteristics of the water-bearing medium in the study area. It lays a good foundation for the establishment of groundwater flow model.
【作者单位】： 中国地质大学盆地水文过程与湿地生态恢复学术创新基地;中国地质大学环境学院;
【基金】：国家自然科学基金——新疆联合基金重点支持项目(No.U1403282) 国家自然科学基金面上项目(No.41572224)
【分类号】：P641
，

本文编号：2027122