Prof. Chongxi Chen has long been engaged in teaching courses, personnel training and scientific research in the field of hydrogeology, working diligently and innovatively, and has achieved fruitful academic research results.
Progress
This article makes a systematic review of Prof. Chongxi ...
The Dupuit model of well flow is a classical steady-state well flow model for a homogeneous unconfined aquifer in a round island. However, it does not consider the widely existing infiltration recharge from precipitation, and is also inapplicable for stratified heterogeneous aquifer systems...
Both the classical Dupuit model and the modified Dupuit model including infiltration are influenced by Dupuit's assumption and have potential systematic errors. Building a numerical model of well flow in an unconfined aquifer by characterizing the three-dimensional or axisymmetric two-dimen...
Monitoring natural attenuation (MNA) is a widely used, economical and effective remediation technique for soil and groundwater contamination. The migration of nonaqueous phase liquid (NAPL) in heterogeneous strata is an important element in the assessment for the efficiency of MNA.
Groundwater flow in fractured rocks has strong heterogeneity and anisotropy. The discrete fracture network (DFN) method has been internationally considered as one of the most reasonable and effective methods to describe the fracture water transport.
Pumping tests are an important method for determining the hydrogeological parameters of aquifers and evaluating groundwater resources. For the analysis of single-well pumping tests, existing models assume that the well diameter remains constant with depth and that the aquifer is either unco...
Groundwater numerical models often have uncertainties due to the complexity of the hydrogeological conditions and the economic and time constraints in collecting a sufficiently large dataset as inputs for conducting modelling exercises. In the past 50 years, stochastic methods have been one...
Geothermal resources are valuable clean resources, and the Enshi Basin contains abundant geothermal resources. It is very important to expore the origin of geothermal resources.
Methods
Starting from the chemical and isotopic characteristics of geothermal water, combined with the hydrological...
The alpine region is the source area of many large rivers globally, and understanding river-groundwater interactions in the region is critical to the scientific management of watershed water resources. Due to the widespread occurrence of permafrost, the distribution and dynamics of riverbed...
Groundwater flow paths may cross the surface divide at the regional scale, resulting in interbasin groundwater circulation that affects hydrological relationships and solute transport process between basins. However, research on interbasin groundwater circulation is still in its infancy ...
Vadose zone well (VZW) injection is an effective method of managed aquifer recharge (MAR). To improve VZW injection management, it is of great importance to accurately describe the unsaturated zone properties. Several analytical models have been developed for VZW injection based on the two-...
The conceptual model of the single-well push test is a hot topic in groundwater hydrogeology.
Methods
In this study, a new mathematical model was developed for radial solute transport in an aquifer near injection wells. The heterogeneity of the aquifer was considered, and the MIM (Mobile-Immo...
In order to understand groundwater systems, it is useful to study the changing characteristics and mechanisms of hydrogeological parameters with time. Responses of groundwater level microfluctuations to natural periodic loadings, such as earth tides and barometric pressure, serve as low-cos...
Karstic spring water is an important source of water supply for the karst areas of northern China. To rationally evaluate and scientifically exploit karstic water resources, it is important to identify the recharge, runoff and discharge conditions of spring water and to clearly depict the b...
Geological, climatic, and topographical conditions control regional groundwater flow systems. Previous researchers have made significant advancements in developing the theory of groundwater flow systems under steady-state climatic conditions. However, there has been limited progress in com...
To study the transport of pollutants in typical hydraulic sedimentary units such as river terraces or alluvial fans, solute transport experiments were carried out in an indoor seepage tank.
Methods
NaNO3 solution were introduced into the tank to simulate the point-pollution in hydraulic sedim...
To quantitatively study the impact of various nonlinear factors in the coastal zone on groundwater flow and solute transport processes, MARUN (Marine Unsaturated) software for simulating groundwater flow in the coastal zone was developed.
The Kuncheng Tunnel of the Central Yunnan Water Diversion Project crosses the Heilongtan and Bailongtan areas, the major headwater regions in the Chenggong District of Kunming City.
Methods
Tunnel water inrush may seriously threaten the safety of the urban water supply. In this paper, based o...
The permeability of coral sand is the key factor determining the groundwater reserves of coral islands. For a long time, the research on the influence of different salinity filtrates on the permeability of coral sand during the formation of freshwater lenses is quiet few.
Baseflow recession analysis is an effective approach to estimating watershed-scale hydrogeological parameters. However, the traditional baseflow recession model did not consider the effects of semipervious riverbanks, and their influence on parameter estimation is unclear.
To determine the reliability and applicability of the soil water characteristic curve and unsaturated permeability coefficient combined measuring instrument designed on the evaporation method, three soil samples were selected: silty clay loam, loam and loamy sand.
The South-to-North Water Transfer Project (SNWTP) has improved water use in northern China and further reduced deep groundwater extraction in the North China Plain. However, its impact on the evolution of regional groundwater hydrochemistry is still unknown.
Dissolved organic matter (DOM) is an important carbon source in the biogeochemical process of groundwater.
Methods
To reveal the impact of the seasonal variation in DOM on the migration and transformation in groundwater on N in the Jianghan Plain, long-term water level and hydrochemical data ...
The leakage of dense nonaqueous phase liquids (DNAPL) with a density greater than that of water into the underground environment becomes a long-term pollution source. Previous researchers have studied the effects of flushing fluid flow rate, cosolvent concentration, and media properties on ...
In the set of 3D seepage simulation programs of MODFLOW, the Conduit Flow Process (CFP) module has been widely used to represent karst conduits and karst aquifers and provides an important tool for groundwater simulation in karst areas.
Methods
When using CFP module to conceptualize the subte...
It is very important to study the upscaling transformation of hydraulic conductivity in fracture media for accurately characterizing the seepage field characteristics.
Methods
Based on the fracture medium statistics of crystalline rock in an underground water-sealed cavern, a 2-dimensional di...
Monitoring natural attenuation (MNA), as a low cost remediation method for groundwater pollution that does not produce secondary pollutants and has little impact on the polluted site environment, has high application value and development prospects, and is worth practicing and studying.
The morphological structure of the fractures in the rock mass is complex, and the fissures rough characteristics of the rock have a great influence on the permeability of the fractures. The current traditional numerical simulation software is mainly based on the macroscopic evaluation of eq...
Comprehensive analysis of fracture geometries and seepage characteristics is one of the prominent components in site suitability assessment of high-level radioactive waste (HLW) disposal repositories.
Methods
To provide a sufficient basis for the construction of the Xinchang underground resea...
