抽水试验和长观水位联合模拟确定含水层参数  

Aquifer Parameter Recognition by Combining Simulation of Pumping Test and Water Level of Long-term Observation Well

作　　者：赵宝峰[1] 康卫东[2] 祝田多娃[1] 马莲净[1] 

机构地区：[1]长安大学环境科学与工程学院,西安710054 [2]西北大学地质学系,西安710069

出　　处：《吉林大学学报（地球科学版）》2009年第3期482-486,共5页Journal of Jilin University：Earth Science Edition

基　　金：国家科技部攻关项目(2002BA901A43);教育部、国家外专局“111学科创新引智计划”项目

摘　　要：为了更加准确地确定含水层参数,提出了利用地下水流数值模拟软件Modflow耦合大型抽水试验和长观孔水位两个模型的方法,对含水层参数进行了识别与校验。该方法求得的含水层参数避免了只利用抽水试验模型校验所带来的不确定性,同时利用抽水实验数据进行抽水与恢复的全过程曲线拟合,水位降深模拟相对误差小于6%,提高了含水层参数的准确性。In order to calculate aquifer parameters accurately, a modeling method was proposed to identify and validate aquifer parameters by taking advantage of groundwater simulation software- Modflow coupled with large scale pumping test and long-term observation well. The method of aquifer parameter recognition avoids the uncertainty which existed in model validation with only conducting pumping test. When the whole curve in period of pumping and recovering was fit by field pumping test data, the relative error would be less than 6% in drawdown simulation, which improved accuracy of acquiring aquifer parameters.

关 键 词：含水层参数 抽水试验 长观孔 数值模拟 

分 类 号：P641.8[天文地球—地质矿产勘探]