A Method for Fabrication of Integrated Structural Surface Specimen with Multiple Side Constraint Forms

Abstract

A method for manufacturing an integrated structural surface sample containing a weak interlayer and having various forms of lateral constraints, comprising the following steps: (1) selecting the shape of the structural surface panel; (2) placing the bottom plate; (3) installing the left front side plate , left rear side panel, right front side panel and right rear side panel; (4) install left side panel and right side panel; (5) install bottom telescopic panel; (6) install side telescopic panel; (7) install top telescopic panel (8) Install the left structural surface panel and the right structural surface panel; (9) Apply mold release agent; (10) Pouring the sample material; (11) Vibrate and compact the sample; (12) Remove the structural surface panel (13) pouring weak interlayer materials; (14) vibrating and compacting weak interlayers; (15) demoulding; (16) curing. The invention can solve the difficulty in laying the weak interlayer and the difficult problems of various lateral constraints of the weak interlayer, and can realize the test condition of normal loading first and then horizontal loading in the direct shear test process.

Description

technical field [0001] The invention relates to the technical field of making molds for structural surface models for direct shear tests, in particular to a method for making integrated structural surface models containing weak interlayers and having multiple lateral constraint forms. Background technique [0002] Structural planes have a controlling influence on the stability of rock masses in engineering, especially weak structural planes containing weak interlayers. The weak structural plane is a weak zone with a certain thickness in the rock mass, which has the characteristics of high compression and low strength compared with the rock mass on the adjacent sides, and it usually controls the deformation and stability of the rock mass. In actual engineering projects, the existence of weak interlayers often leads to frequent accidents and serious loss of life and property. Therefore, it is particularly important to obtain the mechanical properties of structural surfaces wit...

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Problems solved by technology

[0005] In order to be able to meet the requirements of the indoor direct shear test of structural surface models containing weak interlayers, the present invention provides an integrated structural surface model manufacturing method containing weak interlayers and having multiple confinement constraints, which can solve the difficulty of laying weak interlayers And the difficult problem of various lateral constraints of weak interlayers, and the test conditions of normal loading first and then horizontal loading can be realized in the process of direct shear test

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