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Failure mechanism of gob-side roadway in deep coal mining in the **njie mining area: Theoretical analysis and numerical simulation
In deep coal mining, complex stress and mining conditions often cause large deformation and roof falling of roadway, which seriously threatens the...
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Permeability characteristics of sandstone-type uranium deposits under different temperature and confining pressure
In-situ leaching is the main way to realize fluidization mining of deep uranium ore, which has the characteristics of safety, low pollution and low...
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Analysis of damage characteristics and optimization of fan-holes blasting design under high in-situ stresses
In deep mining, the rock mass is characterized by high in-situ stress, which makes the traditional drilling and blasting methods difficult,...
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Experimental study on microscopic characteristics of liquid-cooled granite based on mercury injection method
To study the effect of liquid cooling, including acid cooling and water cooling, on the microscopic characteristics of high-temperature granite,...
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Stress evolution of deep surrounding rock under characteristics of bi-modulus and strength drop
Aiming at the circular chamber under uniform stress field in deep energy storage and mining, analytical solutions of stress and plastic zone of the...
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Instability mechanism and energy evolution of surrounding rock at intersections of deep multi-form application
As mining progresses into deep strata, severe damage occurs at various long-life roadway intersections. To guide targeted repair and reinforcement...
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Dynamic characteristics of high stressed red sandstone subjected to unloading and impact loads
In the process of deep projects excavation, deep rock often experiences a full stress process from high stress to unloading and then to impact...
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Relationships between rock ultrasonic properties with loading stresses and challenges in deep mining
In-situ stress measurement is a key task in deep underground mining activities. An efficient stress measurement technique is important for...
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Comprehensive safety factor of roof in goaf underdeep high stress
The safety factor of roof under deep high stress is a quantitative index for evaluating roof stability. Based on the failure mode of surrounding rock...
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Influence of tunnel axis stress on mechanical response and fracture characteristics of rock surrounding tunnel subjected to gradient stress
The excavation of deep underground engineering leads to a gradient stress within surrounding rocks in the radial direction of the tunnel. In this...
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Intelligent hybrid model to classify failure modes of overstressed rock masses in deep engineering
Squeezing, slabbing, and strainburst are typical failure modes of overstressed rock masses in deep rock excavation engineering. This study considered...
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Removal of arsenic from arsenic-containing solution in a three-dimensional electrode reactor
Deep treatment, a method for further reducing the content of a target substance, for toxic arsenic (As) from water is vital to reduce environmental...
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Mechanical behavior of deep sandstone under high stress-seepage coupling
The mechanical behavior evolution characteristics of sandstone are important to the application and practice of rock engineering. Therefore, a new...
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Numerical analysis of one-strut failure in deep braced excavation considering anisotropic clay behavior
In recent years, with the rapid development of braced excavation supported by multi-level struts, cases of continuous failure caused by local failure...
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Experimental investigation on flow properties of cemented paste backfill through L-pipe and loop-pipe tests
With the gradual depletion of available ore at shallow depth, deep mines have been widely operated around the world and therefore need a longer...
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Numerical analysis of deformation and failure characteristics of deep roadway surrounding rock under static-dynamic coupling stress
In actual production, deep coal mine roadways are often under typical static-dynamic coupling stress (SDCS) conditions with high ground stress and...
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Factor analysis and numerical simulation of rock breaking efficiency of TBM deep rock mass based on orthogonal design
This study investigates the factors affecting the rock-breaking efficiency of the TBM disc cutter in deep rock excavation, including confining...
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Numerical simulation on radiation and energy of blast-induced seismic waves in deep rock masses
With regard to blasting in deep rock masses, it is commonly thought that an increase in the in-situ stress will change the blast-induced rock crack...
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Zonal disintegration phenomenon based on triaxial dynamic load test of hollow cylindrical sandstone specimens
In the process of deep roadway excavation, the zonal disintegration phenomenon of surrounding rocks has attracted a lot of attention from rock...
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Transient dynamic analysis for the ventilated supercavity under the action of tail jetting flow
Ventilated cavitation could be applied to underwater vehicles to achieve a high drag-reduction ratio. The ventilated supercavity may experience...