Abstract:In order to analysis the distribution, loading and damage mechanism of resin anchoring bolt anchorage shear stress, and to improve the effectiveness of the application of resin bolt support in coal mine field. According to the surrounding environment and the mechanical characteristics of resin anchoring bolt in coal mine, based on the elastic mechanics solution of concentrates on load ACTS on the surface of semi-infinite body and infinite internal body, that of shear stress calculation formula of anchorage, resin anchoring bolt in the anchoring of surrounding broken and full of the anchoring interface, was gotten and then shear stress formation mechanism, that of the anchor rod body tension in the interface of anchoring anchorage, was analysized; By using the FLAC numerical simulation software to simulate the bearing and deformation of resin anchoring bolt anchorage segment, the development trend, which of plastic under the action of anchorage interface of resin anchor rod under certain load and confining pressure, was revealed. The distribution of shear stress was revealed, that of resin bolt’s anchorage section by a lab pull-out test, which uses concrete to simulate surrounding rock, and anchorages resin bolting in concrete preformed-hole. The results show that the shear stress of resin anchoring bolt is negative exponent form distribution at first. With the increasing of anchor stress, shear failure and shear stress in the anchoring start section is reducing, and when there is no confining pressure, peak shear stress moves quickly to a deep anchorage interface and invalidation, when there is confining pressure, anchoring interface in anchorage between shearing failure still has a bigger bolt tensile stress development scope.