Jia-Qing ZhouChina University of Geosciences · Faculty of Engineering
Jia-Qing Zhou
PhD
About
36
Publications
13,975
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948
Citations
Citations since 2017
Introduction
I currently work at Faculty of Engineering, China University of Geosciences, Wuhan. I do research on coupling processes between flow, transport, and deformation in porous and fractured media from different scales. Contact information: jqzhou@cug.edu.cn
Additional affiliations
February 2021 - June 2022
September 2018 - December 2021
June 2018 - August 2018
Changjiang Institute of Survey, Planning, Design and Research
Position
- Engineer
Education
September 2016 - September 2017
September 2013 - June 2018
September 2009 - June 2013
Publications
Publications (36)
Plain Language Summary
Mass transfer between a slow‐flowing zone and a recirculation zone is a process found in many environmental and engineered settings. When present, these zones can substantially delay solute transport taking place in the moving bulk fluid. This usually results in the tailing of solutes, typically referred to as anomalous trans...
Plain Language Summary
Fluid flow through geologic porous media is dictated by permeability which is the resistance imparted by the medium. Flows in porous media are described by either Darcy's law or its extension for high flow rates, the Forchheimer equation. In both models, permeability represents the dissipation of mechanical energy by inertial...
Plain Language Summary
Flow through fractured impermeable rock mainly occurs in fractures. These flows are dictated by fracture permeability. Permeability is usually considered to be a sole and intrinsic property of the fractured rock irrespective of the fluid and hydrodynamic conditions. But this may not be the case in high‐pressure scenarios. Ele...
Fluid flow in rock fractures is usually theoretically and numerically investigated on the premise of no-slip boundary condition (BC). However, fluid slippage at rock surface is naturally present in some circumstances that might lead to a violation of no-slip BC. How and to what extent slip BC affects non-Darcian fracture flow remains poorly constra...
Accurately and efficiently predicting solute transport process in single fractures is crucial to many hydrogeological processes. The difficulty of predicting solute transport in single fractures lies in geometric heterogeneity, which enhances nonlinearity of the flow and transport systems. In recent decades, many transport models with good characte...
Water is the most abundant molecule found on the earth's surface and is a key factor in multiscale rock destruction. However, given the fine-grained nature of rock and the complexity of its internal structure, the microstructural evolution of rock under the action of water has not yet been elucidated in detail, and little is understood about the re...
Fluid flow through filled rock fractures is relevant to numerous engineering applications and geophysical processes. However, a proper understanding of the flow behaviors in filled fractures is still far from being completed. To investigate the fluid flow in a rough-walled fracture filled with a porous medium, we systematically compare the micro- a...
The classic GA model assumes a constant-head ponded water and with a saturated water content above the wetting zone, which limits its application. This study investigated a semi-analytical method for predicting rainwater infiltration into an inclined soil interlayer considering time-varying head and stratified water content. An evolving wetting pro...
The salts contained in water can gradually accumulate in pore networks of rocks under wetting-drying cycles, which could cause rock deterioration. The salt-induced damage under this cyclic process can result in dynamically evolving mechanical and hydraulic properties of the rock, which is relevant to many rock-related engineering activities and geo...
Moraine soils are widely distributed in the Qinghai-Tibet Plateau. With increased global warming, moraine soil-related geohazards have become increasingly common, posing a serious threat to the infrastructure (e.g., the Sichuan–Tibet Railway) and inhabitants of this region. This paper aims to investigate the mechanical behavior of ice-rich moraine...
Flow through porous media takes place in diverse geological settings. The fluid motion through pores follows Darcy’s Law (linear rate law) in many cases, but at high flows the Forchheimer (nonlinear) flow regime emerges, where fluid flux and the hydraulic gradient are no longer linearly related. The transition to the nonlinear flow regime has many...
A large-scale obliquely inclined bedding rockslide, activated by a heavy rainstorm, occurred on July 8, 2020, at 7:05 (UTC + 8) in Shiban Village, Songtao Miao Autonomous County, Guizhou Province, China. The loss of life in this event was greatly reduced owing to the local warning system for rainstorm-induced geohazards. To understand the failure c...
Fundamental understanding of solute transport behaviors in rock fractures is of great importance to many hydrogeological processes. The fate of fluid-borne solutes is inherently linked to fluid flow process in rock fractures, which is usually theoretically and numerically analyzed under the assumption of classic no-slip boundary condition. However,...
Understanding and predicting non-Newtonian fluid flows in porous media is crucial for many geophysical and environmental problems. Although extensive studies have investigated nonlinear flow for shear thinning fluids, the critical Reynolds number (Rec) for identifying the transition from rheology- to inertia-dominated flow nonlinearity remains uncl...
Water inflow into a tunnel is usually estimated by assuming that the flow follows the linear Darcy’s law. However, fluid flow in fractured-rock aquifers is prone to deviation from Darcy’s law and gives rise to nonlinear flow phenomena due to significant inertial losses. This non-Darcian effect is seldom considered when evaluating water inflow into...
Plain Language Summary
Subsurface fluid flow and solute transport are typically described by first‐order or linear rate laws. However, deviations from the first‐order rate laws (or anomalous behavior) are typical and lead to nonlinear flow and non‐Fickian transport phenomena. The shared underlying mechanisms for these “anomalous” flow and transport...
Explicit determination of geotechnical parameters is an important but difficult task in rock engineering. Paradoxically, data are often limited even though data from multiple sources (e.g., different testing procedures, testing positions, and estimation models) are commonly available, and the integration of multi-source information for the determin...
On 22 October 2018, at 17:20 (UTC+8), a bedding rockslide occurred on the right bank of the Jian-En expressway in Jianshi County, Hubei Province, Central China. Fortunately, a systematic displacement monitoring network provided an early warning. Thus, no casualties were caused by the rockslide, although two transport vehicles and three houses were...
Natural rock often suffers from cyclic wetting–drying involving different water types, and the resulting deterioration may differ from laboratory tests using distilled water or salt solutions. An inappropriate estimation of this deterioration effect may lead to fatal geological hazards and engineering failures. A multiscale study is conducted to in...
In this study, based on the operation of Three Gorges reservoir, combined with the engineering geological conditions of Xituo landslide, the seepage of the landslide was simulated with saturated-unsaturated method by the secondary development of FLAC 3D. Considering the reservoir regulation, the stability of Xituo landslide was evaluated by the str...
In this note, we report that shear displacement can enhance the degree of flow nonlinearity and induce nonlinear laminar flow in rock fractures. To investigate the effect of shear on the flow process, a series of two-dimensional (2D) fracture geometries with different shear displacements was generated based on a mated fracture. The Lattice Boltzman...
Aiming at the complicated hydrogeological conditions in karst area，the relationship among the recharge，runoff and discharge of the karst groundwater within the project area of the deep-buried diversion tunnel for Jiajiang Water Control Project in Guizhou Province is studied through the analysis of the karst hydrogeological data combined with the fa...
As more and more high-dam hydropower and high head pumped storage projects have been constructed in China, the rock foundation of high dam and high pressure water diversion system generally sustain high water pressure and hydraulic gradient. In this circumstance, not only nonlinear flow is prone to occur in rock seepage; but also accompany with lea...
In this study, the alterations in the microstructures of three types of rocks (i.e. sandstone, granite and marble) were observed with the polarized light microscopy after thermal treatment at different temperatures. The variations in the physical-mechanical properties(including the longitudinal wave velocity, porosity, Young's modulus, peak stress...
The friction factor is an important dimensionless parameter for fluid flow through rock fractures that relates pressure head loss to average flow velocity; it can be affected by both fracture geometry and flow regime. In this study, a theoretical formula form of the friction factor containing both viscous and inertial terms is formulated by incorpo...
Questions
Questions (8)
Hello everyone,
I am dealing with the residence time distributions (RTD) curve in solute transport in groundwater, which is usually plotted by dc/dt versus t. So, what is the meaning of this curve, and for a specific t, what is the physical meaning of its dc/dt value? Besides, for two RTD curves at a specific t, the larger value of dc/dt indicates what?
Does anyone know it, or is there any reference for explaining this RTD curve? Thanks in advance.
-Jiaqing
Dear All,
How to determine the critical point of hydraulic fracturing in the rock? Is there any criterion or method quantifying this critical point? Thanks in advance.
-Jia-Qing
Hello everyone,
Does anyone know how to get the uncertainty of the otained parameters in Optimization in Comsol, such as 95% confidence interval? Thanks in advance.
Jiaqing
Hello everyone!
I want to know the magnitude of pressure gradients in extraction of shale gas and oil in fractured rock environments. Is there any situation where the pressure gradient is near or above 100 MPa/m? It would be very kind of you to provide the references!
Hello everyone! I want to know in which media is the turbulent flow more prone to occur? Is that porous media or fractures? If so, is there any reference supporting the judgement? I'm looking forward your answers, thank you so much!
Hello everyone! I want to compare the geometry of fractures with porous media. As we know, for fluid flow in rock fractures, many governing equations including Darcy's law and Forchheimer's law are borrowed from porous media. If so, then what is the similarities and differences between fractures and porous media? Whether we can say that the fracture can be seen a two-dimensional porous medium on the fracture plane? Is there any references discussing the question? I'm looking forward your views, thank you so much!
As we know, in the Forchheimer equation -▽P=μQ/K+βρQ2 (μ is the viscosity, K is the intrinsic permeability, ρ is the density), the coefficient β depends on the properties of the porous/fractured medium only. For porous media, there are many equations empirical or theoretical to determinate β, such as 1.75(1-n)/g/n3/D [Ergun,1952] (n is the porosity, D is the particle diameter, g is acceleration of gravity). But, what about the β for rough-walled fracture? Is there any equation to determinate β according to the fracture geometries？
According to the Darcy's law,we can conclude that the hydraulic permeability of the fracture is K=h2/12 and K is constant, but what about non-darcy flow? Is it still constant? And how to evaluate it? (h is the hydraulic aperture)
Projects
Project (1)
Multi-field (THMC) tests on rock and soil mass
Multi-scale (SEM, CT) tests on rock and soil mass
Evolution process of rock/soil mass
Parameter degradation of rock/soil mass
