为了精细探查鄂尔多斯盆地巨厚洛河组水文地质条件并定量评价其含水层段富水性垂向变异特征，提出采用导水系数进行含水层富水性评价，给出了导水系数法富水性7级分级标准；采用双Packer系统对陕西高家堡井田DJ1、DJ2钻孔洛河组垂向10个固定厚度层段进行抽水试验并计算水文地质参数，采用综合富水性指数法对洛河组垂向分层并对比分析其垂向分层水文地质特征。结果显示：(1) 提出导水系数富水性分级标准，即T≤1 m2/d、1 m2/d<T≤10 m2/d、10 m2/d<T≤50 m2/d、50 m2/d<T≤100 m2/d、100 m2/d<T≤200 m2/d、200 m2/d

To investigate the hydrogeological conditions of the thick Luohe Formation in Ordos Basin and quantitatively evaluate vertical variation characteristics of its aquifer’ s water-rich, proposes the method of using the coefficient of transmissibility to evaluate the water-rich of the aquifer, and give the seven level classification standard of water-rich by the method of determining coefficient of transmissibility. The double-packer system was used to carry out the pumping tests of 10 vertical sections of fixed thickness of the Luohe Formation in the DJ1 and DJ2 boreholes in the Gaojiabao mine field, shaanxi, and the hydrogeological parameters were calculated. Using the comprehensive water-rich index method to stratify the Luohe Formation vertically and analyze its hydrogeological characteristics vertically. The results show that: (1) The water-rich standards of coefficient of transmissibility are given; when T≤1 m2/d, 1 m2/d<T≤10 m2/d, 10 m2/d<T≤50 m2/d, 50 m2/d<T≤100 m2/d, 100 m2/d<T≤200 m2/d, 200 m2/d