Search
Search Results
-
Pore characteristic evolution and damage deterioration of granite subjected to the thermal and cooling treatments combined with the NMR method
Temperature disturbance could cause deterioration of rock mechanical parameters, and it is of great significance to establish the corresponding...
-
Experimental investigation into the damage evolution of sandstone under decreasing-amplitude stress rates and its implications for coalbed methane exploitation
Coalbed methane (CBM) in the overlying strata of coal mines is recognized as an important alternative clean energy source. Under constant and cyclic...
-
Experimental Investigation on Freeze–Thaw Damage Mechanism of **yu Conglomerate Under Uniaxial Cyclic Loading
**yu conglomerate, widely distributed in the **njiang province of China, plays a crucial role in tunnel construction given its mechanical properties...
-
Infrared Radiation and Acoustic Emission of Damage Evolution and Failure Precursory for Water-Bearing Coal
The instability and failure of water-bearing coal mass can lead to serious coal–rock dynamic disasters, such as mine water inrush. It brings severe...
-
Experimental study on TBM cutter penetration damage process of highly abrasive hard rock pre-cut by high-pressure water jet
When highly abrasive hard rock strata are encountered during the TBM boring process, severe problems, such as low TBM boring efficiency and severe...
-
The Characteristics and Laws of Fracture Damage in the Long-Term Production Process of High-Temperature Geothermal Resources
Geothermal energy is an important renewable energy source, among which hot dry rocks (HDRs) are abundant and potential. The HDRs mass is dense, so...
-
Damage constitutive model and meso-failure characteristics of freeze–thaw rock under triaxial compression
In order to evaluate the damage deterioration degree of freeze–thaw rock under in-situ stress in cold area engineering, it is necessary to establish...
-
Assessment risk of evolution process of disaster chain induced by potential landslide in Woda
The **sha River basin in the upper reaches of the Yangtze River in China is prone to strong geological activities, with numerous large-scale...
-
Damage Evolution in Dry and Saturated Brittle Sandstone Revealed by Acoustic Characterization Under Uniaxial Compression
We present results of P-wave velocities and acoustic emission (AE) activities of a calcareous sandstone, collected from the Three Gorges Reservoir...
-
Permeability Evolution of Coal Seam Roof Sandstone Under Thermal Treatment
The permeability evolution for coal seam roof overburden subjected to high temperature plays a significant role in efficient, clean, and safe...
-
Mechanical damage evolution and mechanism of sandstone with prefabricated parallel double fissures under high-humidity condition
To explore deeply high-humidity effects on mechanical properties of fractured pillars, sandstone pillar in the -750 m room of the Wengfu phosphate...
-
Quantitative Evaluation of Shale Brittleness Based on Brittle-Sensitive Index and Energy Evolution-Based Fuzzy Analytic Hierarchy Process
A quantitative method for evaluating brittleness is pivotal in optimizing hydraulic fracturing of shale. Shale reservoirs are characterized by...
-
Mechanical properties and fracture evolution process of Beishan granite under tensile state
Tensile properties are one of the most important types of rock properties. Direct tensile tests (DT), Brazilian splitting tests (BT), and uniaxial...
-
Fracture Precursor Recognition and Damage Quantitative Characterization of Stressed Rock Using Infrared Radiation
The investigation of rock damage behavior and fracture precursor recognition are important parameters for ensuring stability and safety prediction in...
-
Mechanical Damage Induced by the Water–Rock Reactions of Gypsum-Bearing Mudstone
The deterioration of the mechanical properties of gypsum due to water–rock reactions has attracted extensive attention in the areas of structural...
-
Evolution of micro-damage and degradation of macro-mechanical properties of sandstone due to thermal effects
Previous studies on thermal induced damage of rocks concentrated mainly on the analysis of macro-mechanical properties. This paper documents physical...
-
Energy-Based Fatigue–Creep Damage and Failure Pattern of Rock–Backfill Composite Structure Material in Mine Stopes Under High Static Stress: Disturbed Amplitude Effect
It is not uncommon that the rock–backfill composite structure (RBCS) material in underground mine stopes being exposed to alternative fatigue and...
-
Experimental study on damage characteristics and permeability evolution of K1/J2 paleoweathered rocks under triaxial unloading-loading confining pressure path
Mud-sand inrush accidents in coal mining under extremely thick Cretaceous in Ordos Basin seriously threaten the safety of mine production and miners'...
-
A Fatigue Damage Propagation Model Based on Locally Periodic Micro-crack Growth
This paper develops a new micro-mechanical damage model for fatigue crack propagation in tensile (Mode I) cyclic loading. The double-scale fatigue...
-
The dynamic damage pattern and fine-scale damage characteristics of weathered granite after ore leaching
The strength of weathered rock in rare-earth mine blasting and infiltration enhancement technology is one of the keys to maintaining the stability of...
