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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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Application and research of NPR bolt for shallow-buried large-span metro tunnel
During the excavation of shallow-buried large-span metro tunnel, the surrounding rock is easily affected by the excavation disturbance, using the...
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A Numerical Simulation of Bolt Grouting Reinforcement for Reducing the Optimum Dimensions of Jointed Hard Rock Pillars in Faryab Chromite Mine (Iran)
The maintaining needed for underground mining operations is satisfied by installing a support system or leaving an ore pillars. These pillars need to...
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Determining the inclination angles of anchor bolts for sliding and toppling failures: a case study of İzmir, Türkiye
When anchors are installed along or close to discontinuity surfaces in a jointed rock slope, it is very difficult for them to bond to the rock mass....
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Experimental Study on the Mechanical Behavior of Rock Bolts Subjected to Complex Static and Dynamic Loads
In underground mining practice, the rock bolt support system is the major support pattern to control the deformation and stability of openings. A...
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An Overview of the Use of Rockbolts as Support Tools in Mining Operations
Historically, the idea of designing and installing rockbolts in rockmasses can be traced back to the construction of the Snowy Mountain hydroelectric...
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Analysis of the Historic Bondi Pum** Chamber Case Study Using the Adjusted Voussoir Beam Analog
Analytical methods in engineering design use simplifying assumptions to reduce the number of variables considered for a given problem. In rock...
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Investigation of geo-mining green roof seismic energy balancing with resin bolting by Universal Drilling Machine: a novel energy-absorbing-based support system
Roof bolt reinforcement of stratified carboniferous and fragile strata is a popular way of roof support in underground mines. The manifestation of...
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Investigation of the Mechanical Properties of Shear in an Experimental Setting of Prestressed Anchor Cable in Mines
The mechanical characteristics of anchor cable (AC) play a vital role in determining the design of prestressed support for roadways in deep coal...
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Seismic assessment and finite element modeling of traditional vs innovative point fixed glass facade systems (PFGFS)
In the last decades, recent earthquakes have further highlighted the high vulnerability of non-structural components. Post-earthquake damage due to...
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Corrosion Level of Rock Bolts Exposed to Aggressive Environments in Nordic Road Tunnels
For road tunnels in most Nordic countries, temporary rock support installed during tunnel excavation usually becomes a part of the permanent rock...
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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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Experimental and Mechanical Analysis of the Yielding Support Behavior of a Novel Compact Yielding Anchor Cable
Development of a novel compact yielding anchor cable aims to address the demand for anchorage support in deep rock masses that experience significant...
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Stability Analysis of Pillars in an Inclined Airleg Stope Under Static Loading Conditions
Understanding the failure mechanism and stability of pillars is necessary for their efficient extraction in Airleg stopes (ALS). By substituting...
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Control Effects of Pretensioned Partially Encapsulated Resin Bolting with Mesh Systems on Extremely Soft Coal Gateways: a Large-Scale Experimental Study
Pretensioned partially encapsulated resin bolting with mesh systems (PPERBMSs) are commonly employed in underground mines, particularly for soft coal...
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Laboratory Investigations into the Failure Mechanisms of New Yielding and Inflatable Rockbolts Under Axial and Shearing Loading Conditions
Rockbolts are widely used in the tunnels and underground mining industry for support and reinforcement of the rock mass around the perimeter of the...
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Rockburst-Specific Flexible Protection Net (RFPN) for Tunnels: Creation, Characteristics, and Preliminary Application
In this study, the principle of the protection net used for rocks falling from a slope was adapted to develop a prototype of a flexible protection...
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Resilient performance of self-centering hybrid rocking walls with curved interface under pseudo-static loading
Frame and rocking wall (FRW) structures have excellent resilient performance during earthquakes. However, the concrete at interfacial corners of...
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Influence of Testing Configuration on the Performance of Paddled Energy-Absorbing Rockbolts Under Impact Loading
Deep and high-stress mines are susceptible to mining induced seismicity that can challenge the installed ground support. Under these seismic...
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TBM Project Construction Organization
Key points of this chapter: this chapter first analyzes the TBM construction system from the aspects of tunneling and mucking, support operation,...