Tensile type anchor cable has the advantages of convenient construction, short construction period, fast and safe, economic and other advantages, in the slope engineering is widely used, and achieved remarkable economic and social benefits. Tensile type anchor cable load transfer is effected by steel wire and grouting, grouting and surrounding rock, mechanical bond between the bite force, friction force is transferred to the formation of the. The stress analysis of anchorage segment, rely mainly on uneven deformation of anchorage segment drive and combination of rock mass deformation, to call for the shear strength of rock body.

Research shows that, in the limit state, tensile type anchor cable damage form has the following kinds:

Grout and rock interface destruction; steel strand and grouting body interface destruction; steel wire damage; damage of rock body grouting material. The 5 forms of damage by rock mass environment, grouting material, construction equipment and construction process effects in practical engineering will appear in one or several appear at the same time. Based on the basic data of tensile type anchor cable test and field test of anchor cable, which led to the failure causes were analyzed, and the tensile type anchor cable damage mechanism research.

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