Comparison between bearing characteristics of pervious concrete pile composite foundations with different replacement ratios
September 2023
The replacement ratio is an essential factor in evaluating the bearing capacity characteristics of composite foundations. This study focuses on the bearing capacity of a pervious concrete pile with...
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Research on the effects of heating and cooling processes on the mechanical properties of yellow rust granite
September 2023
Geological hazards caused by high-temperature rocks cooling down after encountering water are closely related to underground mining and tunneling projects. To fully understand the impact of temperature...
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Characterization and impact analysis of freezing and expansion disease of roadbed in seasonal freezing zone: A case of heavy railroads
September 2023
The freezing and expansion diseases of railroad roadbeds are prevalent in areas that experience seasonal freezing. This study aims to investigate the features of the freezing and expansion mechanism...
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Study of a damage constitutive model for water-bearing coal measures sedimentary rock with nonlinear deformation during compaction stage
September 2023
The problem of repeated immersion-induced fatigue damage in engineering coal measures sedimentary rock, including coal-rock pillars, reservoir bank slopes, and water-rich tunnels at the boundary of...
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Application of artificial neural networks for stress state analysis based on the photoelastic method
June 2023
The present article proposes an evolutionary development of the photoelasticity method for measuring stresses based on annular photoelastic sensors application along with stress pattern recording with...
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Peak-strength strain energy storage index for evaluating coal burst liability based on the linear energy storage law
June 2023
The strain energy storage index WET was widely used to evaluate coal burst liability, but the scientific evidence for selecting the unloading stress level interval (around 80% of peak strength) remains...
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Piston mechanism of interaction of non-linear geomechanical and physicochemical gas exchange and mass transfer processes in coal-bearing rocks
June 2023
The article focuses on a theoretical and experimental framework for the quantification of interaction between nonlinear geomechnical and physicochemical processes in high-stress coal-bearing rock mass...
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Prospect and research progress of detecting dynamic change in crustal stress by bedrock temperature
June 2023
A new method of detecting stress change by temperature (DSCT), has been recently proposed on the basis of the experimental results in laboratory, and verified by field observation. In this paper, at...
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A way to determine the positive direction of the shear force on the elemental area
June 2023
This study is devoted to amendment to some concepts related to the construction of Mohr's circles on the plane of variables “normal and tangential components of the stress vector on the elemental area”....
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Assessment of seismic retrofitting interventions in reinforced concrete structures
June 2023
Destruction of reinforced concrete (RC) structures, particularly non-ductile RC structures, in recent earthquakes demonstrate their vulnerability under lateral forces generated in an earthquake. Despite...
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Evaluation of ground motion parameters and seismic response of reinforced concrete buildings from the Mw 6.9, 2011 Sikkim earthquake
June 2023
The continuous collision of the Eurasian plate and the Indian plate has resulted in several earthquakes in the Himalayan region. The 6.9 Mw 2011 Sikkim earthquake, which caused immense damage to the...
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Preliminary study on the determination of the Weibull modulus of strength distribution in quasi-brittle materials
June 2023
In this paper, how to determine the Weibull modulus of a fracture strength distribution is discussed with its physical implications for quasi-brittle materials. Based on the Markov chain assumption,...
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Geomechanics model test research on large deformation control mechanism of roadway disturbed by strong dynamic pressure
June 2023
Comprehensive mechanized top-coal caving mining is one of the efficient mining methods in coal mines. However, the goaf formed by comprehensive mechanized top-coal caving mining is high, and the goaf...
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Acoustic emission parameters and energy dissipation law of cyclic load and unload damage of dihydrate gypsum under different loading rate
June 2023
In order to explore the effect of loading rate on physical and mechanical properties of dihydrate gypsum, cyclic loading and unloading mechanical tests were carried out at different loading rates. Test...
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Quantitative assessment of energy changes in underground coal excavations using numerical approach
March 2023
Coal burst is caused by a dynamic and unstable release of energy within the overstressed rock mass/coal during the mining process. Although the occurrence of coal burst is a result of the complex impacts...
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Detection and targeted control of regional stress field for coal burst prevention
March 2023
As coal burst normally occurs in the area of high stress concentration, it is of significance to study the features of regional stress field in coal mines. Primitive stress field, mining-induced stress...
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Experimental investigations on the cracking and mechanical responses of PMMA samples with two 3D embedded elliptic flaws under uniaxial compression
March 2023
In this paper, the cracking and mechanical responses are studied for the Polymethylmethacrylate (PMMA) sample with two three-dimensional embedded coplanar elliptic flaws subjected to uniaxial compression....
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Roof bolting and underground roof falls
March 2023
Roof bolting has been used in underground entry (roadway) support in U.S. coal mines since the Coal Mine Health and Safety Act of 1969 (US Congress, 1977) recognized roof bolting as the only means of...
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Efficiently identifying coalbed methane enrichment areas by detecting and locating low-frequency signals in the coal mine
March 2023
Low-frequency signals have been widely found in the conventional oil/gas field and volcanic region as well as during hydraulic fracturing of unconventional oil/gas reservoirs. Their generation mechanism...
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A brief introduction to disaster rock mass mechanics
March 2023
Rock mass mechanics can be classified into engineering rock mass mechanics and disaster rock mass mechanics based on science and application. Their conception, object, scientific essence and application...
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