Geomechanics model layering compaction air drying manufacturing and grooving embedding tester method
A test instrument and geomechanics technology, which is applied in the field of geomechanics model layered compaction and air-dried production and grooving and embedding test instruments, can solve the problem of inability to ensure the compactness of the model body, the inability to ensure the compactness of the overall structure of the model, and the inability to ensure the integrity of the model Structural uniformity and other issues to achieve the effect of improving the production process and testing technology level, reducing interference, and ensuring homogeneity
Inactive Publication Date: 2011-01-19
SHANDONG UNIV
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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 Engineeri
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[0042] The present invention will be further described below in conjunction with the drawings and embodiments.
[0043] A geomechanical model layered compaction air-drying manufacturing method and slot burying test instrument method includes the following steps:
[0044] 1) Determine the pressure required to compact the model body 1. To ensure the mechanical parameters of model body 1, such as elastic modulus E and compressive strength σ c 、Tensile strength σ t , Poisson's ratio μ, etc. reach the design value, which is equal to the test value of the mechanical parameters of the model material laboratory. It is necessary to ensure that the pressure when the model body 1 is pressed is equal to the pressure when the specimen is pressed, so the pressing force of the model body 1 is S·σ p , Where S is the cross-sectional area of the model body, σ p It is the pressure for making the standard test piece (the pressure for making the standard test piece is a known technique).
[0045] 2) Fo...
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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) grooving embedding 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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Inventor 张强勇李术才陈旭光张宁贾超刘健段抗
Owner SHANDONG UNIV
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