摘要
通过野外调查和对几个代表性的碳酸岩露头的实际裂隙测量 ,得到了山西柳林泉区岩溶含水岩组中的裂隙分布规律 .在此基础上建立了反映泉区实际情况的三维可混溶溶质运移模型 .模型用于描述柳林泉区地下水中Cl- 的运移行为 ,模拟效果良好 :模型拟合阶段水头和Cl- 浓度的计算值与观测值误差绝对值的平均值分别为 0 .36m、6.5mg/L ;模型检验阶段水头和Cl- 浓度的计算值与观测值误差绝对值的平均值分别为 0 .4 9m、6.3mg/L .所有结果显示两者基本一致 ,说明所建模型是可靠的 ,可以用于实际 .据此用所建模型预报了柳林泉区柳林电厂水源地投入使用后咸水入侵的可能性 .
The distribution pattern of the fractures, which are developed in the karst aquifer in Liulin spring area, Shanxi Province, is obtained through the field investigation and the field fracture measurement on several representative outcrop of carbonate rock. A three-dimensional miscible solute transport mathematical model is presented. The model reflects the actual situation of the study area. It is applied to describe the transport behavior of Cl - in the groundwater of Liulin spring area. The simulated values agree very well with the field data. In the calibration step, the average absolute errors between the simulated and the observed values for the hydraulic head and the concentration of Cl - are 0.36?m and 6.5?mg/L respectively. In the examination step, they are 0.49?m and 6.3?mg/: respectively. Good comparison between the simulated and the observed values demonstrates that the model is reliable and can be applied to solving practical problems. Thus, the model is used to detect the possbility of salt water intrusion into fresh water aquifers when Liulin springs are used as a water supply center for the Liulin power plant.
出处
《南京大学学报（自然科学版）》
CAS
CSCD
2000年第6期728-734,共7页
Journal of Nanjing University（Natural Science）
基金
国家自然科学基金(49702037)
关键词
裂隙介质
溶质运移
数学模型
数值模拟
fracture medium
solute transport
mathematicl model
numerical simulation
