Geotechnical anchor technology is an important part of the field of geotechnical engineering, with a wide range of applications in the field of hydraulic construction, the towering structure, underground engineering, anti overturning engineering and slope engineering.

   The traditional anchor pullout resistance rely on its own friction, mainly to study the disc structure based prestressed anchor and explore its force mechanism and its calculation method, the main contents are as follows:

   1. Study the failure mode of the disc bolt through the model test method, discussed in a given soil conditions under the anchor plate embedment depth, diameter disk size as well as the anchor plate spacing distribution law of anchor pullout resistance. Analysis of the disc anchor pullout failure mechanism; single disc and multi-disc under different conditions disc bolt failure mode is determined according to the test results.

   Integral layered solution study elastic deformation within the soil of the semi-infinite space between the prestressed anchor and soil displacement compatibility equation and the pullout force balance equation. Explore the relationship of the relative displacement between the anchor and soil loads; study the interaction between the the anchor group pullout mechanism and disc anchor characteristics, as well as a number of different anchor anchor group effect, different anchor plate spacing the distribution characteristics of the single bolt side friction characteristics.

   Uplift the relationship between force and displacement. Disc Bolt limit state, the application of the slider limit equilibrium theory derived the disc anchor pullout resistance calculation, basic agreement by the results of experimental verification.

   Application of finite element numerical simulation method, to explore the role between the mechanical characteristics of prestressed anchor loads disc deformation law and soil properties and failure modes, its results and experimental results are basically the same.