| 摘要 |
Base thrust anchor assembly for use with roof bolts and base plate having means to provide deep penetration of the rock strata and provide large areal distribution of the longitudinal load in order to prevent overstressing the rock strata. The assembly employs anchor wings having a small longitudinal cross-sectional area that is applied in a transverse (radial) direction to permit deep penetration of the strata of a bolt hole wall, and a large transverse cross-sectional area to better support the longitudinal load imposed on the rock strata.
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