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| 昆明地热田岩溶地下热水系统中溶质运移的模拟 | |
| 引用本文： | 薛传东,普传杰,刘星,杨浩,李保珠.昆明地热田岩溶地下热水系统中溶质运移的模拟[J].中国岩溶,2003,22(4):251-257. |
| 作者姓名： | 薛传东 普传杰 刘星 杨浩 李保珠 |
| 作者单位： | 1. 昆明理工大学地球科学系,云南,昆明,650093;中国科学院南京土壤研究所,江苏,南京,210008 2. 昆明理工大学地球科学系,云南,昆明,650093;云南省黄金管理局,云南,昆明,650051 3. 昆明理工大学地球科学系,云南,昆明,650093 4. 中国科学院南京土壤研究所,江苏,南京,210008 |
| 基金项目： | 云南省自然科学基金项目(编号:1999D006Q、2003D009Q)资助 |
| 摘 要： | 通过对昆明地热田深层基岩地下热水系统的地质、水文地质条件和开采现状的分析，建立了考虑温压变化和越流条件的岩溶热储层中地下热水的水流和溶质(污染物)运移的准三维非稳定流数学模型。对开采条件下地热田Ⅱ块段地下热水系统中水位及F^-、Cl^-、NH4^ 、SO4^2-浓度的模拟结果表明，所建立的模型合理、可靠，具有较高的仿真性。模型可预测不同条件下地热田地下热水的流场和溶质浓度的动态变化趋势，为防治地下热水环境的进一步恶化提供参考。 |
| 关 键 词： | 地下热水 岩溶含水系统 溶质运移 数值模型 昆明地热田 |
| 文章编号： | 1001-4810(2003)04-0251-07 |
| 修稿时间： | 2003年5月12日 |
NUMERICAL SIMULATION FOR SOLUTE TRANSPORT IN KARST GEOTHERMAL GROUNDWATER AQUIFER SYSTEM IN KUNMING GEOTHERMAL FIELD |
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| XUE Chuan-dong,PU Chuan-jie,LIU Xing,YANG Hao and LI Bao-zhu.NUMERICAL SIMULATION FOR SOLUTE TRANSPORT IN KARST GEOTHERMAL GROUNDWATER AQUIFER SYSTEM IN KUNMING GEOTHERMAL FIELD[J].Carsologica Sinica,2003,22(4):251-257. | |
| Authors: | XUE Chuan-dong PU Chuan-jie LIU Xing YANG Hao and LI Bao-zhu |
| Institution: | XUE Chuan-dong~ |
| Abstract: | Through analyzing the geological, hydrogeological and extractive conditions of the geothermal groundwater in Kunming Geothermal Field, a hydrogeological concept model and a quasi-three dimensional numerical model with temperature and pressure variation for the leaky karst geothermal aquifer system are set up in this paper, which is coupled with a groundwater flow model and a heat transfer model and a solute (contaminant) transport model. The mathematical model is calibrated with the monitoring data of the geothermal groundwater hydraulic-level and concentration of the simulated solute factor (contaminant) of Z_2dn aquifer in block II from 1990 to 2000. The calculated results are approximately identical to the observation data, the average error of the geothermal water hydraulic-level is less than 1.5 meter,and the average error of the four ions concentration are both less than 2~5 percent. That is, the present model is reliable and practical, and can be used to simulate and predict the groundwater flow and solute (or contaminant) transport in the geothermal groundwater system under different conditions and to provide the appropriate corresponding counter-measures for the sustainable exploitation and utilization for the geothermal groundwater resources. |
| Keywords: | Geothermal groundwater Karst aquifer system Solute (or contaminant) transport Numerical simulation model Kunming Geothermal Field |
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