Geomechanics model layering compaction air drying manufacturing and grooving embedding tester method

Abstract

The invention relates to a geomechanics model layering compaction air drying manufacturing and grooving embedding tester method, comprising the following steps of: (1) determining the pressure required for compacting a model body; (2) paving materials, evenly mixing materials in the proportion and evenly paving in a model test device in a layering way after weighing; (3) compacting, performing layering compaction on the model materials evenly paved in the step (2) according to the pressure determined in the step (1); (4) air drying the compacted model materials in a layering way; (5) groovingembedding tester, and embedding the layering embedding tester in compaction air-drying formed model body according to the tester; and (6) repeating the steps (2) to (5) until the whole model body is manufactured. The invention has the characteristics that the imporosity and uniformity of the model body are ensured, the whole model manufacturing process is efficiency, rapid and convenient, the tester can be arranged on an accurate position without deviation and the model manufacturing process and the test technical level are improved.

Description

technical field [0001] The invention relates to a method for making a geomechanics model by layering, compacting, air-drying and cutting grooves for embedding a testing instrument. Background technique [0002] With the rapid development of transportation infrastructure and the development of underground resources, underground cavern structures have been widely used in the fields of hydropower, transportation, resources, and energy. At the same time, the construction safety of underground caverns has also received more and more attention and attention. . With the deepening of underground engineering and the improvement of project scale, the engineering geological conditions and hydrogeological conditions of the rock mass in the proposed underground engineering area are becoming more and more complex. In addition to research and numerical calculation methods, it is necessary to rely more on model experiments to analyze and evaluate the stability of surrounding rocks excavate...

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Problems solved by technology

This method uses a masonry structure, which has artificially weak structural surfaces, and cannot guarantee the uniformity of the overall structure of the model

[0006] (2) "Rock and Soil Mechanics" No. 11, 2004 introduced a masonry model making method. This method uses a masonry structure, and there are artificially weak structural surfaces, which cannot guarantee the uniformity of the overall structure of the model.

[0007] (3) "Construction Technology" No. 11, 2005 introduced a model test method for gypsum-like materials. This method uses a masonry structure, and there are artificially weak structural surfaces, which cannot guarantee the uniformity of the overall structure of the model.

[0008] (4) "Journal of Rock Mechanics and Engineering" No. 9, 2006 introduced a bifurcated tunnel model manufacturing method, which uses manual tamping, which cannot guarantee the compactness of the overall structure of the model

[0009] (5) The Chinese patent with the application number 200810056625.4 introduces a model making method based on the reverse control principle of the compound action function of the compaction work. This method uses a compactor for compaction and cannot guarantee the compactness of the model body

[0010] (6) "Journal of Rock Mechanics and Engineering" No. 1, 2010 introduced a method of building a model with blocks of similar materials. This method has artificially weak structural surfaces and cannot guarantee the uniformity of the overall structure of the model.

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