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Similar simulation experiment test piece prepressing device and method for manufacturing experiment test piece by using same

A similar simulation experiment and test block technology, which is applied in the preparation of test samples, measuring devices, sampling, etc., can solve the problem of difficult production of true triaxial similar simulation models, poor control of inclination angle and thickness parallelism model compactness, etc. problems, to achieve the effect of reducing working time and working intensity, fast production speed and high quality of test pieces

Active Publication Date: 2016-11-16
HUNAN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the fully enclosed space characteristics of the true triaxial similarity experiment, the true triaxial similar simulation model is not easy to make, especially after the rock formation has a certain dip angle, the model layering of the similar simulation model, the dip angle and thickness of the model rock strata, and the parallelism of each side of the model and the compactness of the model are not easy to control

Method used

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  • Similar simulation experiment test piece prepressing device and method for manufacturing experiment test piece by using same
  • Similar simulation experiment test piece prepressing device and method for manufacturing experiment test piece by using same
  • Similar simulation experiment test piece prepressing device and method for manufacturing experiment test piece by using same

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Embodiment Construction

[0054] The present invention is a kind of similar simulation experiment test block preloading device, comprises motor and oil pump, and base 1 is installed with positioning crossbeam 3 through four parallel uprights 2, and positioning crossbeam 3 is installed with regulating motor 4, and positioning crossbeam 3 upper pressing plate 5 below It is connected with the adjusting motor 4 through the lead screw 12; the oil cylinder 6 is installed in the center of the base, and the oil cylinder 6 adopts a two-way oil cylinder, and the oil cylinder 6 is connected with the oil pump 10 through the pipeline 9. Sample mold box8. The oil pump 10 , the oil cylinder 6 and the adjusting motor 4 are controlled by an integrated switch 11 . Parallel rails 13 are horizontally installed above the base 1 through a rail frame 14, and a mobile base 15 for placing the sample mold box 8 is provided on the parallel rails 13. The upper pressing plate 5 is parallel to the lower pressing plate 7, and the c...

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Abstract

The invention discloses a device and method used for manufacturing a similar simulation experiment test piece. The method comprises the following steps: (1) determining a physical structure chart of a simulating test piece; (2) determining the ratio of similar materials; (3) determining the positions of stress monitoring points; (4) installing a die; (5) putting the test piece die vertically; (6) laying rock strata; (7) putting the test piece die flat; (8) prepressing the test piece on a prepressing platform; (9) drying the test piece. The device and the method have the beneficial effects that a similar simulation experiment test piece model with different dip angles of rock strata can be manufactured according to similar simulation model parameters set in advance; not only is the manufacturing method simple and high in manufacturing speed but also the compactness and flatness of the manufactured model can meet the requirements of similar simulation experiments.

Description

technical field [0001] The invention relates to a device and a method for making a test block for a similar simulation experiment, in particular to a method for making a large-size test block for a similar simulation model under true triaxial and high confining pressure conditions. Background technique [0002] With the gradual development of human mining activities in the roadway to the deep part, the stress in the stress field of the original rock continues to increase, and the high stress makes the deformation of the deep part of the roadway show completely different deformation characteristics from that of the shallow part. Fully grasp the mechanical properties of the surrounding rock under high stress conditions And deformation and displacement laws are particularly important for deep mining activities. [0003] Similar material model experiment is a laboratory research method based on similar theory. Widely used in disciplines such as water conservancy, mining and geo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28
CPCG01N1/286
Inventor 吴海王卫军刘迅袁超张农
Owner HUNAN UNIV OF SCI & TECH
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