Rib-grouting body interface mechanical property testing system and method

Abstract

The invention discloses a rib-grouting body interface mechanical property testing system and method, and solves the problem that the radial deformation of a test piece cannot be accurately measured inthe prior art. The invention has the beneficial effect of improving the accuracy of obtaining the radial deformation of the rib-grouting body interface. The specific scheme is that the system comprises a test piece container used for containing the test piece, wherein the test piece is arranged in the test piece container; an extensometer is arranged between the test piece and the test piece container, an anchor rod of the test piece penetrates through the test piece container, and a loading device provides confining pressure for the test piece and provides an acting force for the anchor rod.

Description

technical field [0001] The invention relates to the research problem of the shear mechanical properties of the contact interface between a rib body and a grouting body in the fields of bridges, mining, rock and soil, water conservancy and hydropower, etc., in particular to a system and method for testing the mechanical properties of a rib body-grouting body interface. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] In recent years, with the rapid development of my country's economy and the vigorous investment in infrastructure construction, my country's high-speed railway network construction, underground space development, and large-scale infrastructure construction have all entered a new stage of rapid development. Anchorage technology is widely used in many fields such as bridges, mining, geotechnical, water conservancy and hydropower d...

AI Technical Summary

Problems solved by technology

In fact, during the drawing process, the stress distribution of the tendon-grouting body interface is extremely uneven along the longitudinal direction of the entire anchorage structure, and the existing test equipment cannot measure the radial deformation of the specimen. For a long time, there is bound to be a big difference between the interface mechanical properties obtained through the pull-out test of the tendon-grouting body interface and the actual shear mechanical characteristics of the tendon-grouting body interface, which will affect the accuracy of the analysis of the test results

In addition, due to the limitations

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