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groundwater-system
相关语句
  相似匹配句对
     The Pollution of Groundwater
     地下水污染
短句来源
     Groundwater NMR
     NMR探测地下水原理(英文)
短句来源
     THE EVOLUATION OF GROUNDWATER SYSTEM
     地下水系统的进化
短句来源
     Denitrification in groundwater systems
     地下水环境中反硝化作用
短句来源
     DISASTERS FROMOVER-EXTRACTION OF GROUNDWATER
     过量开采地下水引起的灾害
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From the view of groundwater system, the groundwater regime of the carbonate of Middle Cambrian Middle Ordovician inX uzhou area was analysed and,the principle and method of linearprogramming was applied to evaluate the groundwater of four water supplies in the western suburbs of Xuzhou city. Under the condition of permit decline of the water table we got that we have come up with the maximum of exploitation of groundwater 140 thousand M3/day in this area and the excellent distribution of the yield of water...

From the view of groundwater system, the groundwater regime of the carbonate of Middle Cambrian Middle Ordovician inX uzhou area was analysed and,the principle and method of linearprogramming was applied to evaluate the groundwater of four water supplies in the western suburbs of Xuzhou city. Under the condition of permit decline of the water table we got that we have come up with the maximum of exploitation of groundwater 140 thousand M3/day in this area and the excellent distribution of the yield of water supply relatively in 2000 We. have calculated the extract water in interference of polybound and main wells by using the diagram of specific condition in this paper. This is a method with common meaning.

本文从地下水系统的观点出发,对徐州地区中寒武统—中奥陶统碳酸盐岩地下水系统进行了分析。并应用线性规划的原理和方法对徐州市西郊四个水源地地下水进行了水文地质计算。在规定水位允许降深的约束条件下,求得至2000年,该区地下水最大开采量为14万米~3/天及各水源地相应取水量的最佳分配。文中采用特定条件图解法计算多边界、多主井抽水干扰影响的方法,具有通用意义。

Uranium contents and 234U/238U ratios have been determined on 29 water samples from the Taiyuan area, Shanxi Province. The results show that the same artesian aqui-fer has similar uranium contents and 234u/238U activity ratios, and the deeper aquifers have higher A. R. values but lower uranium contents. The A. R. values inerease slight-ly towards groundwater flow in the artesian aquifers dominated by oxidizing ground waters.The Shanglan Spring and the famous Jinci Spring belong to two different karst groundwater...

Uranium contents and 234U/238U ratios have been determined on 29 water samples from the Taiyuan area, Shanxi Province. The results show that the same artesian aqui-fer has similar uranium contents and 234u/238U activity ratios, and the deeper aquifers have higher A. R. values but lower uranium contents. The A. R. values inerease slight-ly towards groundwater flow in the artesian aquifers dominated by oxidizing ground waters.The Shanglan Spring and the famous Jinci Spring belong to two different karst groundwater systems, i.e., the east and west karst groundwater systems. The recharge area of the Shanglan Spring should cover the wide limestone outcrops of Middle Ordo-vician in the northeast. The Ordovician. fissure-karst ;ground Water to the Jinci Spring is extensively mixed with fissure water in Carboniferous-Jurassic formations and seepa-ge water from the Fenhe River.

太原地区地下水中铀含量及铀同位素比值的测定结果表明,同一含水层有相近的铀含量及~(234)U/~(238)U比值。氧化为主的含水层,地下水的~(234)U/~(238)U比值随径流方向逐渐增加。

To set up a mathematical model of mining area groundwater system, this paper begins with a general statement and then simplifies how the problem is to be solved by technical treatment of boundary condition and heterogeneity of groundwater aquifer in mining area. We will then employed Thies theory to set up the mathematical model for solving drainage problem. Under the given drainage request, we have predicted each step's drainage production with time. This paper has developed a new method of how to treat...

To set up a mathematical model of mining area groundwater system, this paper begins with a general statement and then simplifies how the problem is to be solved by technical treatment of boundary condition and heterogeneity of groundwater aquifer in mining area. We will then employed Thies theory to set up the mathematical model for solving drainage problem. Under the given drainage request, we have predicted each step's drainage production with time. This paper has developed a new method of how to treat superposition of step's flux and compute transmissibility under confined-unconfined state.

本文在分析矿区水文地质条件并加以简化的基础上,对含水层的边界条件及非均质性作了技术处理,从而确定了矿区水文地质计算模型,然后运用泰斯非稳定流理论建立求解疏干流量的数学模型。在规定的疏干要求下,预测了各阶段的疏干流量及相应的疏干时间。文中对阶梯流量迭加计算过程,当含水层为承压—无压状态下,如何确定水力传导系数,提出了新的方法。

 
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