Mechanism and application of reaming anchorage of inverted wedge-shaped hole bottom in argillaceous cemented roadway
Guizhou Institute of Technology
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Abstract
Anchor quality is a critical factor influencing the anchoring performance after drilling and expanding anchor holes. Anchoring at the bottom of the hole is an effective technical measure to improve the anchoring quality of mudstone cemented soft rock tunnels. Through a comprehensive research approach including theoretical analysis, laboratory experiments, and numerical simulation, we conducted anchoring quality tests on a self-developed bottom-hole single-wing inverted wedge-shaped hole-expanding device. The anchoring quality under different hole-expanding parameters was analyzed to reveal the anchoring enhancement mechanism at the bottom of the anchor hole. We established an anchoring model for bottom-hole…
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18
total citations
- FWCI
- 143.68
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- 100%
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5Topics & keywords
Topics
Keywords
- Anchoring
- Wedge (geometry)
- Mechanism (biology)
- Drilling
- Quality (philosophy)
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