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Publications
Publications (9)
It is widely acknowledged in current research that underground fluid injection activities may induce earthquakes, which has become a significant factor in constraining the exploitation of underlying resources. To better understand the effects of fault properties on injection-induced fault activation and shear slip behavior, sandstone samples contai...
Water-rock interactions exist between the geothermal host rock (GHR) and the cold injected water for Enhanced (or Engineered) Geothermal Systems (EGS), changing permeability and thermal conductivity of GHR, influencing the heat extraction of EGS. Therefore, a water-rock interaction experiment is performed under high temperature and pressure conditi...
A R T I C L E I N F O Keywords: Post-fatigue characteristics High-strength concrete Coupled 3D fatigue-static loading Physico-mechanical properties Fatigue damage model Empirical prediction model A B S T R A C T Concrete structures suffer some damage yet not failed under fatigue load, and then continue to bear 3D redistributed stress. For this, the...
Concrete is widely used in underground engineering and bears three-dimensional stress transmitted by overlying load. When a fire occurs, the thermal expansion of concrete structure under such stress state is different from that under stress-free state. For this purpose, a self-developed real-time high-temperature true triaxial test system was appli...
Knowledge of thermo-hydro-mechanical (THM) coupling process is important for rock hydrofracturing of enhanced geothermal systems (EGS). The THM coupling parameters (e.g. thermal conductivity, water permeability and Biot’s coefficient, etc) of granite undergoing treatment with heating and water cooling (HWC) were measured using laboratory tests. A l...
The stress distribution around constructions in deep rock can be modified by dynamic disturbances, such as earthquakes. For this, we proposed a new loading method applied to granite sample under coupled static and dynamic cyclic loading (CSDCL) condition. The variations in P-wave velocity, gas permeability, and mechanical properties of granite befo...
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Most of the rock masses after dynamic disturbance return to the original state of stress or have the stress redistributed within a certain time period. One dimensional coupled dynamic and static loading tests were carried out under a new type of static and dynamic-static loading combinations to compare the characteristics of mechanical properties,p...
