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Rock impact loading-unloading confining pressure testing system and using method thereof

A test system and pressure technology, applied in the direction of using a single impact force to test the strength of the material, using a stable tension/pressure test to test the strength of the material, scientific instruments, etc. Control and test the effect of simple operation

Active Publication Date: 2019-03-19
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology

However, there is no test device and method for studying the mechanical properties of rock under the condition of impact loading and unloading confining pressure, and the existing test devices and methods need further breakthroughs

Method used

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  • Rock impact loading-unloading confining pressure testing system and using method thereof
  • Rock impact loading-unloading confining pressure testing system and using method thereof
  • Rock impact loading-unloading confining pressure testing system and using method thereof

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Embodiment Construction

[0050] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0051] refer to Figure 1-2 Shown, rock impact loading-unloading pressure test system of the present invention, it comprises:

[0052] The bearing frame unit 1 includes a base 11, a column 12 and a beam 13, the column 12 is vertically arranged on both sides of the upper surface of the base 11, and the beam 13 is horizontally fixed on the top of the column 12;

[0053] The axial pressure loading unit 2 is fixed at the middle position of the upper surface of the base 11, and is used to apply an axial pressure from bottom to top on the test piece 8;

[0054] The impact loading unit 3 is fixed on the beam 13 and is used to apply a top-down axial imp...

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Abstract

The invention discloses a rock impact loading-unloading confining pressure testing system and a using method thereof. The rock impact loading-unloading confining pressure testing system comprises a bearing frame unit, an axial pressure loading unit, an impact loading unit and a confining pressure loading unit and further comprises a confining pressure unloading unit, a loading control unit, a monitoring unit and a data analysis unit; the bearing frame unit comprises a base, upright columns and a beam, the upright columns are vertically arranged at two sides of the upper surface of the base, and the beam is horizontally and fixedly arranged at the upper parts of the upright columns; the axial pressure loading unit is fixedly arranged on a middle position of the upper surface of the base andis used for applying an axial pressure from bottom to top to a test piece; the impact loading unit is fixedly arranged on the beam and is used for applying an axial impact load from top to bottom tothe test piece; and the confining pressure loading unit is arranged between the axial pressure loading unit and the impact loading unit and is used for applying confining pressure within a horizontalplane to the test piece. The rock impact loading-unloading confining pressure testing system provides more accurate test data support, the confining pressure unloading pressure can be continuously regulated, an unloading process is automatically controlled, and the testing operation is simple.

Description

technical field [0001] The invention relates to the technical field of roadway surrounding rock support, in particular to a rock impact loading-unloading pressure test system and a use method thereof. Background technique [0002] Rockburst phenomenon is a special form of mine pressure manifestation, which can be described as: mining (mining face) induces high-strength coal (rock) deformation energy to be released instantaneously, causing strong surrounding rock vibration and vibration in the corresponding mining space. The phenomenon of extrusion is one of the most serious natural disasters in the process of coal mine production. Generally, there is no obvious macroscopic omen before the occurrence, and the coal rock mass is thrown out suddenly, sharply and violently, causing equipment damage, roof caving, Roadway blockage and casualties have seriously affected the safe and efficient production of coal mines. At present, with the continuous increase of coal mining depth an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/12G01N3/307
CPCG01N3/12G01N3/307G01N2203/0075G01N2203/0048G01N2203/0026G01N3/30G01N2203/0256
Inventor 刘学生宋世琳谭云亮范德源宁建国顾清恒江宁王俊徐强
Owner SHANDONG UNIV OF SCI & TECH
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