Laiwang Jing
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View article: Principle and calculation method of hydraulic fracturing technique for in-situ stress based on two arbitrary holes
Principle and calculation method of hydraulic fracturing technique for in-situ stress based on two arbitrary holes Open
In order to precisely obtain the magnitude and orientation of in-situ stress in coal mine roadway, the principle and calculation method of hydraulic fracturing technique for in-situ stress with two arbitrary holes were established in this …
View article: Enhancing Fatigue Performance of Coal Gangue Concrete (CGC) through Polypropylene Fiber Modification: Experimental Evaluation
Enhancing Fatigue Performance of Coal Gangue Concrete (CGC) through Polypropylene Fiber Modification: Experimental Evaluation Open
Coal gangue is a byproduct of coal mining and processing, and according to incomplete statistics, China has amassed a substantial coal gangue stockpile exceeding 2600 large mountains, which poses a serious threat to the ecological environm…
View article: Analytical Solution of Ice–Rock-Model Stress Field and Stress Intensity Factors in Inhomogeneous Media
Analytical Solution of Ice–Rock-Model Stress Field and Stress Intensity Factors in Inhomogeneous Media Open
The stress distribution and fracture parameter calibration of ice–rock models are important aspects of studying rock properties at high altitudes and latitudes. However, progress in ice–rock modeling has been slow and singular, and it is l…
View article: A Study on the Mechanical Properties of Glass-Fiber-Reinforced Defective Gypsum Boards
A Study on the Mechanical Properties of Glass-Fiber-Reinforced Defective Gypsum Boards Open
As a waste derivative, glass fiber has drawn a lot of interest from the engineering community. The purpose of this study was to use glass fiber to improve the performance of defective gypsum boards. Single compression experiments, repeated…
View article: Deformation failure analysis and identification method of zoning type of actual tunnel surrounding rock
Deformation failure analysis and identification method of zoning type of actual tunnel surrounding rock Open
The research on deformation zoning mechanism of tunnel surrounding rock is of great significance for ensuring safe production and disaster prevention in coal mines.However, the traditional deformation zoning theory of tunnel surrounding ro…
View article: Study on strength characteristics and permeability of chlorite schist during triaxial compression permeability
Study on strength characteristics and permeability of chlorite schist during triaxial compression permeability Open
In order to grasp the strength characteristics and permeability of chlorite schist, the triaxial compression permeability test of chlorite schist was carried out by using a rock triaxial servo testing machine equipped with seepage device.B…
View article: Instability Mechanism and Key Control Technology of Deep Soft Rock Roadway under Long‐Term Water Immersion
Instability Mechanism and Key Control Technology of Deep Soft Rock Roadway under Long‐Term Water Immersion Open
More and more attention has been paid to the supporting problem of deep soft rock roadway floor with long‐term water immersion in recent years. However, the existing soft rock roadway support technology rarely takes into account the influe…
View article: Experimental Study on Thermal Damage and Energy Evolution of Sandstone after High Temperature Treatment
Experimental Study on Thermal Damage and Energy Evolution of Sandstone after High Temperature Treatment Open
Thermal damage and energy evolution characteristics in process of impact failure of sandstone after high temperature treatment were studied by split Hopkinson pressure bar (SHPB) system. The ultrasonic P‐wave velocity, density, porosity, p…
View article: Supporting Mechanism and Technology of Roadway Overall along Goaf in Extremely Loose and Extra Thick Coal Seam
Supporting Mechanism and Technology of Roadway Overall along Goaf in Extremely Loose and Extra Thick Coal Seam Open
Taking machinery roadway, ventilation passage of Roadway 8203 of Guobei Mine in Huaibei Mining Group as the research background, applying basic theory of modern solid mechanics, interaction mechanism between bracket and bolt were studied …
View article: The effect of the roadway excavation disturbance by spacing between deep adjacent tunnels
The effect of the roadway excavation disturbance by spacing between deep adjacent tunnels Open
By using the finite element software ABAQUS, the paper carries out numerical simulation analysis on influence of new coal lane tunneling along the groove disturbing the original high pumping Lane in a deep mine 1112 working face in Huainan…
View article: Experimental Study and Numerical Simulation of Semi-circled Arch Specimen with SFRC
Experimental Study and Numerical Simulation of Semi-circled Arch Specimen with SFRC Open
The intention of this paper is to reveal the mechanical properties of steel fiber reinforced concrete (SFRC) at different volume fractions of steel fiber and demonstrate that it can be applied as support in underground coal-mine tunnels.Wi…