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Article
Transverse isotropic slate damage modeling under triaxial compression conditions
Studies of the mechanical response behavior of slate and the establishment of corresponding damage-ontological relationships are crucial for improving safety and avoiding disasters in construction projects. Fo...
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Article
Experimental Study on the Dynamic Mechanical Properties and Critical Crushing Energy Dissipation Characteristics of Rocks Under Three-Dimensional Dynamic–Static Combinations of Loading Scenarios
To investigate the mechanical and energy dissipation characteristics of gray sandstone at critical failure, dynamic impact compression tests were conducted under different axial pressure and confining pressure...
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Article
Open AccessResearch on the theory and method of reduced-hole blasting for large cross-section tunnel based on explosive energy dissipation
The traditional tunnel drilling and blasting method places cut holes at the lower center of the excavation face, resulting in an excessive number of blasting holes. With the continuous increase in cross-sectio...
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Article
Open AccessDamage and reliability analysis of double-arch tunnel without a middle pilot tunnel under blast load
In this study, a new type of multi-arch tunnel construction method is proposed. This effort is undertaken due to the many disadvantages of the traditional multi-arch tunnel construction method. Furthermore, th...
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Article
Open AccessA damage constitutive model of layered slate under the action of triaxial compression and water environment erosion
Based on the macroscopic structure control theory, The slate with a significant bedding plane is a composite rock mass composed of rock blocks containing microscopic defects, joint surface closure elements, an...
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Article
Open AccessAnalysis of the influence of shear-tensile resistance and rock-breaking effect of cutting holes
In the process of drilling and blasting construction of large-cross-section tunnels, the layout of wedge-shaped cutting holes has a great influence on the effect of blasting. In this study, theoretical analysi...
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Article
Study on Viscoelastic Constitutive Model of Bedded Dolomite Considering Poisson Effect
To explore the mechanical mechanism of the dilatation failure of bedded dolomite caused by unidirectional loads, the viscoelastic theory and Poisson phenomenon were considered under the action of active stress...
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Article
Open AccessCalculation method of HJC constitutive model parameters of natural joint angle slate
In the course of underground engineering, layered slate is often encountered. Understanding the mechanical characteristics of layered slate is a prerequisite for engineering construction and disaster preventio...
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Article
Open AccessCalculation of hole spacing and surrounding rock damage analysis under the action of in situ stress and joints
In situ stress and joints have a significant impact on the propagation and attenuation pattern of blast stress waves, and they are two important factors that must be considered for tunnel blasting hole network...
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Article
Flow Characteristics of Fresh Cemented Paste Backfill Containing Flocculant under Variable Shear Rate Based on Water Migration
The flocculant used in tailing thickening and shearing action in fresh cemented paste backfill (CPB) pipeline transportation will affect the different water distribution characteristics in fresh CPB. This stud...
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Article
A Method Based on Spectrum Superposition for Minimizing the Hazards of Blasting Vibration
The selection of delay time will directly affect the effect of vibration reduction in millisecond delay blasting. The commonly used frequency spectrum control methods have some problems such as the difficulty ...
