Transport of Contaminants in Heterogeneous Fractured Network Aquifer and Contaminated Site Remediation

ZHU Taoling; DENG Ying'er; LI Pengjie

doi:10.3969/j.issn.1001-9235.2026.06.010

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Transport of Contaminants in Heterogeneous Fractured Network Aquifer and Contaminated Site Remediation

更新时间：2026-06-30

- Transport of Contaminants in Heterogeneous Fractured Network Aquifer and Contaminated Site Remediation
- PEARL RIVER Vol. 47, Issue 6, Pages: 105-115(2026)
- 作者机构：
  
  地质灾害防治与地质环境保护全国重点实验室（成都理工大学），四川成都　610059
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.1001-9235.2026.06.010
  CLC： TV14
- Received：16 September 2025，
  
  Revised：2025-11-10，
  
  Accepted：25 November 2025，
  
  Online First：04 December 2025，
  
  Published：25 June 2026
- 稿件说明：
移动端阅览
诸涛玲，邓英尔，李鹏杰.非均质裂隙网络含水介质污染物运移与场地污染修复［J］.人民珠江，2026，47（6）：105-115.

ZHU Taoling,DENG Ying'er,LI Pengjie.Transport of Contaminants in Heterogeneous Fractured Network Aquifer and Contaminated Site Remediation[J].PEARL RIVER,2026,47(06):105-115.
诸涛玲，邓英尔，李鹏杰.非均质裂隙网络含水介质污染物运移与场地污染修复［J］.人民珠江，2026，47（6）：105-115. DOI： 10.3969/j.issn.1001-9235.2026.06.010.

ZHU Taoling,DENG Ying'er,LI Pengjie.Transport of Contaminants in Heterogeneous Fractured Network Aquifer and Contaminated Site Remediation[J].PEARL RIVER,2026,47(06):105-115. DOI： 10.3969/j.issn.1001-9235.2026.06.010.

摘要

针对非均质裂隙网络含水介质中污染物快速迁移与污染场地修复控制难题，构建了裂隙网络-孔隙介质耦合三维模型，考虑瞬时“初始污染羽”和“持续源”输入，基于Navier-Stokes方程、对流-扩散方程，分析了地下水流场、溶质污染物运移化学场，比较了无抽水与极限抽水条件（井内恒定大气压）下的流场与化学场的响应。结果表明：裂隙优势通道显著加速前缘推进，并强化稀释，在相同迁移时刻，非均质模型的污染物平均浓度约为均质模型的20%；持续源且无抽水时，观测点浓度在短期内上升，并维持高位，100 d时污染物迁移至下游约100 m；采用抽出井（半径0.1 m，高度20 m）后，局部压力场被重塑，污染羽被有效控制与截获，观测点浓度稳定在源强的7.5%，且在10 a模拟期内，污染羽未越过抽出井；研究结果揭示了“快通道-慢基质”耦合作用下的快速传播-快速稀释机理；采取裂隙通道的优化布井与极限抽干可显著抑制下游扩散，为裂隙含水介质污染场地的风险识别与抽出-处理方案设计提供了方法与修复技术。

Abstract

Heterogeneous fractured aquifers are characterized by strong permeability contrasts between highly conductive fracture networks and the surrounding low-permeability rock matrix. These systems promote rapid and far-reaching contaminant transport

while simultaneously complicating hydraulic control and remediation. To address these challenges

we developed a fully three-dimensional coupled fracture network-porous medium model that explicitly represented both preferential flow channels in fractures and storage and diffusion in the rock matrix. The model incorporated two types of contaminant input: an instantaneous release that generates an initial contaminant plume and a continuous source that mimics persistent leakage. Groundwater flow was described by Navier-Stokes equations and solute transport by the advection-diffusion equation

and the governing equations were solved numerically in three dimensions. We systematically compared the responses of the flow field and concentration field under two contrasting scenarios: natural conditions without pumping and an aggressive remediation scenario with extreme pumping

in which constant atmospheric pressure is maintained in the extraction well.The results show that fracture-dominated preferential flow pathways markedly accelerate plume transport and enhance dilution relative to a homogeneous reference model. At the same travel time

the average contaminant concentration in the heterogeneous model is only about 20% of that in the homogeneous model

indicating strong dilution associated with rapid advection along fractures and mass exchange with the low-permeability matrix. Under continuous source input without pumping

concentrations at monitoring points rise quickly and remain at elevated levels

while the contaminant plume migrates approximately 100 m downstream after 100 days

forming an elongated and difficult-to-control contamination zone.When an extraction well with a radius of 0.1 m and a screened interval of 20 m is installed

the local pressure field is substantially reconfigured. The capture zone formed around the well effectively controls and intercepts the advancing plume: concentrations at observation points stabilize at about 7.5% of the source concentration

and the plume does not extend beyond the extraction well during the 10-year simulation period. These findings clarify the coupled "fast pathway and slow matrix" mechanism

in which fractures act as rapid transport conduits while the matrix serves as a reservoir that modulates dilution and long-term release. By explicitly resolving the interplay between fracture connectivity

matrix diffusion

and pumping-induced hydraulic gradients

the model reveals key process controls on remediation performance. The study demonstrates that optimized placement of extraction wells along dominant fracture pathways

combined with high-rate pumping

can significantly suppress downstream contaminant spread. The proposed modeling approach and insights provide a quantitative basis for risk assessment and for the design and optimization of pump-and-treat remediation strategies at contaminated sites in fractured aquifers.

关键词

Keywords

references

吴佳玲，毛德华 . 湘江流域水体重金属污染及健康风险评价［J］. 人民珠江， 2023 ， 44 （ 3 ）： 94 - 103 .

WU J L ， MAO D H . Heavy metal pollution and health risk assessment in Xiangjiang River Basin ［J］. Pearl River ， 2023 ， 44 （ 3 ）： 94 - 103 . （in Chinese）

王锦博，任磊，常维纯，等 . 裂隙介质场地污染物扩散风险评估方法设计与应用［J/OL］. 吉林大学学报（地球科学版）， 1 - 11 ［ 2025-10-26 ］. https：//doi.org/10.13278/j.cnki.jjuese.20240312 https://doi.org/10.13278/j.cnki.jjuese.20240312 .

WANG J B ， REN L ， CHANG W C ， et al . Design and application of risk assessment methods for contaminant diffusion in fractured media sites ［J/OL］. Journal of Jilin University （Earth Science Edition）， 1 - 11 ［ 2025-10-26 ］. https：//doi.org/10.13278/j.cnki.jjuese.20240312 https://doi.org/10.13278/j.cnki.jjuese.20240312 . （in Chinese）

鲁海峰，宁明诚，张元，等 . 溶孔—裂隙复合网络的随机生成及其数值网格化［J］. 地质科技通报， 2023 ， 42 （ 5 ）： 264 - 272 .

LU H F ， NING M C ， ZHANG Y ， et al . Stochastic generation and numerical gridding of dissolved pore-fracture composite networks ［J］. Bulletin of Geological Science and Technology ， 2023 ， 42 （ 5 ）： 264 - 272 . （in Chinese）

宋晓晨，徐卫亚 . 裂隙岩体渗流模拟的三维离散裂隙网络数值模型（Ⅰ）：裂隙网络的随机生成［J］. 岩石力学与工程学报， 2004 ， 23 （ 12 ）： 2015 - 2020 .

SONG X C ， XU W Y . Numerical model of three-dimensional discrete fracture network for seepage in fractured rocks （Ⅰ）： generation of fracture network ［J］. Chinese Journal of Rock Mechanics and Engineering ， 2004 ， 23 （ 12 ）： 2015 - 2020 . （in Chinese）

熊峰，姜清辉，陈胜云，等 . 裂隙-孔隙双重介质Darcy-Forchheimer耦合流动模拟方法及工程应用［J］. 岩土工程学报， 2021 ， 43 （ 11 ）： 2037 - 2045 .

XIONG F ， JIANG Q H ， CHEN S Y ， et al . Modeling of coupled Darcy-Forchheimer flow in fractured porous media and its engineering application ［J］. Chinese Journal of Geotechnical Engineering ， 2021 ， 43 （ 11 ）： 2037 - 2045 . （in Chinese）

李馨馨，徐轶 . 裂隙岩体渗流溶质运移耦合离散裂隙模型数值计算方法［J］. 岩土工程学报， 2019 ， 41 （ 6 ）： 1164 - 1171 .

LI X X ， XU Y . Hydraulic and solute transport coupling model for fractured rock mass with discrete fracture network using computational method ［J］. Chinese Journal of Geotechnical Engineering ， 2019 ， 41 （ 6 ）： 1164 - 1171 . （in Chinese）

王家樑 . 抽出处理技术在地下水污染修复工程中的应用［J］. 上海建设科技， 2019 （ 1 ）： 67 - 69 .

WANG J L . Application of drainage treatment technology in groundwater pollution rehabilitation project ［J］. Shanghai Construction Science & Technology ， 2019 （ 1 ）： 67 - 69 . （in Chinese）

王少波，张舒，熊玉龙，等 . 河湖水系连通对城市河道生态修复水动力作用效果：以猎德涌为例［J］. 人民珠江， 2025 ， 46 （ 1 ）： 1 - 8 .

WANG S B ， ZHANG S ， XIONG Y L ， et al . Hydrodynamic effects of river-lake system connectivity on ecological restoration of urban rivers： a case study of Liede River ［J］. Pearl River ， 2025 ， 46 （ 1 ）： 1 - 8 . （in Chinese）

宫志强，田西昭，刘伟江，等 . 抽出-处理技术抽出污染地下水：抽出效率及抽出终点［J］. 吉林大学学报（地球科学版）， 2020 ， 50 （ 12 ）： 1711 - 1719 .

GONG Z Q ， TIAN X Z ， LIU W J ， et al . Pumping treatment technology to pump out contaminated groundwater：extraction efficiency and extraction endpoint ［J］. Journal of Jilin University （Earth Science Edition）， 2020 ， 50 （ 12 ）： 1711 - 1719 . （in Chinese）

胡鹏，朱国荣，江思珉 . 裂隙网络模型在地下水数值模拟中的应用研究进展［J］. 工程勘察， 2013 ， 41 （ 11 ）： 44 - 49 .

HU P ， ZHU G R ， JIANG S M . Study progresses in fracture network models for numerical groundwater simulations ［J］. Geotechnical Investigation & Surveying ， 2013 ， 41 （ 11 ）： 44 - 49 . （in Chinese）

王晋丽，陈喜，张志才，等 . 基于MODFLOW的离散裂隙网络渗流分析［J］. 中国岩溶， 2025 ， 44 （ 1 ）： 1 - 14 .

WANG J L ， CHEN X ， ZHANG Z C ， et al . MODFLOW-based analysis on seepage in discrete fissure networks ［J］. Carsologica Sinica ， 2025 ， 44 （ 1 ）： 1 - 14 . （in Chinese）

ZIMMERMAN R W ， BODVARSSON G S . Hydraulic conductivity of rock fractures ［J］. Transport in Porous Media ， 1996 ， 23 （ 1 ）. DOI： 10.1007/BF00145263 http://dx.doi.org/10.1007/BF00145263 .

JIANG Z ， DENG T C ， YIN Q ， et al . Numerical modeling of fluid flowing properties through porous media with single rough fractures ［J］. Geofluids ， 2021 （ 1 ）： 661 - 1723 .

LIU R C ， JIANG Y J ， LI B ， et al . A fractal model for characterizing fluid flow in fractured rock masses based on randomly distributed rock fracture networks ［J］. Computers and Geotechnics ， 2015 ， 65 ： 45 - 55 .

EGERT R ， NITSCHKE F ， GHOLAMI KORZANI M ， et al . Stochastic 3D Navier‐Stokes flow in self‐affine fracture geometries controlled by anisotropy and channeling ［J］. Geophysical Research Letters ， 2021 ， 48 （ 9 ）. DOI： 10.1029/2020gl092138 http://dx.doi.org/10.1029/2020gl092138 .

张莉，刘菲，袁慧卿，等 . 地下水抽出处理技术研究进展与展望［J］. 现代地质， 2023 ， 37 （ 4 ）： 977 - 985 .

ZHANG L ， LIU F ， YUAN H Q ， et al . Research progress and prospect of groundwater pump and treat technology ［J］. Geoscience ， 2023 ， 37 （ 4 ）： 977 - 985 . （in Chinese）

Views

391

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Analysis of the Evolution Characteristics of Meteorological Drought Events in Wenzhou City Based on Three-dimensional Recognition

Analysis of Inundation Characteristics and Risk Assessment of Compound Flooding in Coastal Plain River Network Areas Based on Scenario Simulations

Spatiotemporal Evolution Characteristics of Extreme Rainfall in Typical Urban Agglomerations of China

Quantitative Evaluation of Regulation Capacity of Cascade Hydropower Stations for Extreme Fluctuations of New Energy Under Source-Load Matching

Analysis of the Spatiotemporal Characteristics of Soil Moisture Memory and the Attribution of Changes in Freezing Depth in the Lhasa River Basin

Related Author

ZHU Taoling

DENG Yinger

LI Pengjie

Related Institution

National Key Laboratory of Geohazard Prevention and Geoenvironment Protection (Chengdu University of Technology)

AI问答

⁰