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用有限差分法评价三门峡西能源基地大面积地下水资源,在国内尚属首次。这种方法不但成果可靠,而且经济和社会效益比较显著。首先,在取得大量勘探和试验资料的基础上,用有限差分法借助电子计算机,在较短的时间内,对该区的水文地质参数进行了优选。然后,模拟计算了地下水量和水位。继而,从这偌大的地域中筛选出好宏、七里堡两个富水段。并模拟计算了同时开采条件下,不同开采周期的地下水量和水位演变规律。结果获得,在允许降深的情况下,全年连续开采,好宏富水段每天可取水9.5万立方米,七里堡富水段每天可取水5万立方米。倘若,每年只开采地下水150天,其余时间利用清沏的三门峡库水,那么两富水段的日开采地下水量可增大到13万立方米和7.5万立方米。在此情况下,又预测了全区10年的水位动态。诚然,又选用数种方法对其进行了验证。结果表明,用有限差分法模拟评价大面积的地下水资源是可靠和可行的。兹为三门峡西能源基地水源地的选译提供了依据。
It is the first time to evaluate the large-scale groundwater resources of Sanmenxia Western Energy Base by finite difference method. This method is not only reliable, but also economic and social benefits are more significant. Firstly, on the basis of obtaining a lot of exploration and test data, the finite element method is used to optimize the hydrogeological parameters of the area by means of electronic computer in a relatively short period of time. Then, the groundwater level and water level are simulated. Then, from this huge area in the selection of good macro, Qilibao two rich sections. Simultaneously, the law of groundwater and water level evolution in different mining cycles under the condition of simultaneous mining was simulated. The results obtained, allowing the decline in the case of continuous mining year round, a good macro-rich water daily intake of 95,000 cubic meters, seven-Fort Fortune water daily intake of 50,000 cubic meters. If only exploitation of groundwater for 150 days a year, the rest of the time to take advantage of the cracked Sanmenxia reservoir water, then the rich water section of the exploitation of groundwater can be increased to 130,000 cubic meters and 75,000 cubic meters. In this case, it predicts the water level in the whole area for 10 years. Admittedly, there are several ways to validate it. The results show that using finite difference method to simulate and evaluate large area groundwater resources is reliable and feasible. This provides the basis for the election of water sources in Sanmenxia West Energy Base.