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Resin Flow Characteristics and Anchoring Performance of Resin-Anchored Bolts in Soft and Broken Surrounding Rock
Resin distribution in a borehole is critical to the anchoring performance during resin-anchored bolt installation. The distribution characteristics...
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Evolution and Control Mechanism of Rockburst in Rock Anchored by New Energy-Absorbing Material
The essence of rockburst is the sudden release of energy accumulated in the rock. High-strength energy-absorbing anchoring bolt is an effective means...
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Strainburst characteristics under bolt support conditions: an experimental study
Strainburst, defined as a burst that occurs on the periphery of tunnels, is always associated with intact and hard brittle rocks and high geo-stress....
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Laboratorial Tests and Numerical Modeling of Rock Bolts Bonded by Different Materials
The interaction between bolt and rock is crucial to its reinforcing efficacy. Effective bolt installation depends on the bonding/coupling type and...
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Displacement of Rods During Pullout Failure of Rock Anchors: A Case Study
This paper focuses on a pullout failure of anchor rods used to stabilize rock slope at the sides of a road cut in a mountainous terrain. The...
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Experimental Study of the Effects of Borehole Size, Borehole Roughness, and Installation Pressure on the Pull Load Capacity of Inflatable Rockbolts
An inflatable rockbolt is a steel tube that has been rolled into an omega shape. During installation, water is injected into the tube, which expands...
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Research on Low-Density Cross-Border Support Technology for Large-Section Coal Roadway in Shallow-Buried Thick Coal Seam
The slow excavation speed of coal roadways has always been a key factor restricting the safe and efficient production of large-scale coal mines in...
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High-Stress Chamber Stability in Kilometer-Deep Coal Mines: A Case Study
Controlling the surrounding rock of coal mine roadways or chambers becomes more difficult as mining depth increases. The stability of the underground...
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Estimation of support requirement for a deep shaft at the **ncheng Gold Mine, China
To overcome the problems existing in the application of the traditional stability control method of the surrounding rock of deep shafts, in this...
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Mechanisms of rockbolt support for highly fractured rock masses–insight from physical and numerical modeling
Rockbolting is the most common support system in both civil and mining engineering. The mechanics of ground support using rockbolt have yet not been...
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Support design in underground coal mines using modified rock mass classification system (RMRdyn) for enhanced safety– an approach from stable and failed roof cases
Bord and pillar method of mining continues to be a major operation in India with about 160 mines producing 35 MT of coal. Owing to the exhaustion of...
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Numerical Study on the Effectiveness of the Grouting Cable Bolt in Deep Retained Goaf Side Gateroad
Grouting cable bolt was employed to control the stability of the retaind goaf side gateraod (RGSG) in the Panyidong coalmine by considering severe...
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Analytical and numerical simulations to investigate effective parameters on pre-tensioned rockbolt behavior in rock slopes
Pre-tensioning of rockbolts is permitted to ensure better confinement between bedding rock slopes. The resulting shear adherence between layers is...
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Unconfined compressive strength and failure behaviour of completely weathered granite from a fault zone
Understanding the strength characteristics and deformation behaviour of the tunnel surrounding rock in a fault zone is significant for tunnel...
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Study on Surrounding Rock Control of Gob-Side Entry Retaining in Inclined and Thick Longwall Face
The gob-side retaining can save coal pillar of mining area and improve coal recovery rate of working face. Meanwhile, this technology helps relieve...
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Study on large deformation mechanism and concrete-filled steel tubular support technology for ventilation shaft roadway
The large deformation of deep soft rock roadways and the corresponding support technology are important to the coal mining industry. This study...
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Numerical Study on the Mechanical Behavior of Shotcrete Lining with Yielding Support in Large Deformation Tunnel
The yielding support has proven to be one of the most effective measures to control the large deformation of the tunnel, as it could well stabilize...
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Strength and Failure Mode of Expansive Slurry-Inclined Layered Rock Mass Composite Based on Mohr–Coulomb Criterion
Traditional grouting technology only provides a bonding effect to surrounding rock fissures. Therefore, an expansion agent was added to the grouting...
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Composite roof stability control in a short-distance coal seam under goaf: a case study
Field research, theoretical analyses, numerical simulations, and industrial tests were employed to solve the serious problems of anchor cable...
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Study on Shear Strength Characteristics of Basalt-Concrete Bonding Interface Based on in-situ Direct Shear Test
In rock engineering, the shear strength of the basalt-concrete bonding interface is a key factor affecting the shear performance of hydroelectric dam...