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华北某地下水水源地是一个埋藏型岩溶水系统,含水层为奥陶系灰岩。在开采地段施工15眼开采井,根据开采井的出水能力和开采井之间的干扰(影响)情况,以开采量作为决策变量建立目标函数,以水位降深为约束条件,建立地下水开采管理模型,利用单纯形法求解线型规划模型。共考虑开采井总数依次是9、10、11、12、13、14和15眼的7种开采方案。结果表明,方案一至方案七的实际开采井总数是91、0、11、11、11、13和13眼,各井优化开采量不尽相同,大者达2×104m3/d左右,总降深最大值依次为113.4、124.0、135.3、134.2、134.2、156.0和156.0 m,总开采量均达到10×104m3/d的水源地供水要求。宜优先考虑开采井总数较少的开采方案。
A groundwater source in North China is a buried karst water system, and the aquifer is Ordovician limestone. According to the water outflow ability of the production well and the interference (influence) between the production wells, the objective function is established based on the exploitation volume as the decision variable, and the groundwater exploitation management model is established with the restriction of water level as the constraint , Using simplex method to solve linear programming model. A total of 7 production options were considered for the 9, 10, 11, 12, 13, 14 and 15 eyes in total. The results show that the total number of actual wells in the first scenario to the seventh scenario is 91, 0, 11, 11, 11, 13 and 13, and the optimized production of each well is not the same, the largest is about 2 × 104m3 / d, The maximum values are 113.4, 124.0, 135.3, 134.2, 134.2, 156.0 and 156.0 m in turn, with the total extraction volume reaching 10 × 104 m3 / d. Priority should be given to mining options with fewer total wells.