Coal-rock sample real triaxial vertical dynamic-static loading tester

A triaxial loading and true triaxial technology, applied in the direction of applying stable tension/pressure to test the strength of materials, measuring devices, instruments, etc., to achieve the effect of improving the level of theoretical research and equipment, improving effectiveness and pertinence

Active Publication Date: 2017-06-13
CHINA UNIV OF MINING & TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, no matter what kind of equipment, it can only complete the static load and dynamic load tests. In fac

Method used

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  • Coal-rock sample real triaxial vertical dynamic-static loading tester
  • Coal-rock sample real triaxial vertical dynamic-static loading tester
  • Coal-rock sample real triaxial vertical dynamic-static loading tester

Examples

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Example Embodiment

[0018] Below in conjunction with accompanying drawing, the embodiment of the patent of the present invention is described in detail: this embodiment is implemented under the premise of the technical solution of the present invention, has provided detailed implementation and specific operation process, but protection scope of the present invention is not limited to Examples described below.

[0019] like figure 1 , 2 , 3, 4, and 5: This example includes load sensor 1, rebound displacement sensor 2, high-speed servo cylinder 3, baffle plate 4, rigid frame 5, horizontal platform 6, unloading cylinder 7, single-piston high-response servo Cylinder 8, hollow double piston rod servo cylinder 9, lifting servo mechanism 10, column 11, drop rod 12, pneumatic force device 13, displacement sensor 14, base 15, vibration damper 16, piston rod 17, impact rod 18 , Linear bearing 19.

[0020] A true three-axis vertical dynamic and static loading and unloading test machine for coal and rock ...

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Abstract

The invention relates to a coal-rock sample real triaxial vertical dynamic-static loading tester, which is applicable to reappeared impact mineral pressure, rock explosion and other coal-rock power disasters during a underground mine mining process. The testing system is composed of a triaxial loading system, a measurement control system, and a power loading system; X and Y axes are provided with double high-frequency response servo cylinders of four-pillar and two-pillar single piston cylinders, and installed on the same one horizontal platform driven by a lifting servo mechanism along the Z axis direction, wherein one direction of the Y axis is provided with an unloading cylinder to realize the rapid unloading of stress at one face; the Z axis is provided with a four-pillar hollow type dual-piston rod single servo cylinder, and configured with a resilience type displacement sensor, the measurement data feeds back to the lifting servo mechanism, and guarantees that the loading center of the horizontal X and U axes is always intersected at one point and the center point is unchanged. The high-speed servo cylinder is installed on the Z axis for providing the power source. The tester can simulate the real triaxial vertical dynamic-static loading state of the coal-rock sample, the Z-axis impact power loading state, the Y-axis fixing rate or rapid stress unloading state.

Description

technical field [0001] The patent of the invention relates to a real three-axis vertical dynamic and static loading test machine for coal and rock samples, which is mainly used for the research on the mechanism of mine impact dynamic disasters and the simulation and reproduction in the laboratory. Background technique [0002] With the continuous mining of coal resources, the mining depth continues to increase. Ensuring the safe mining of mines at high depths is a necessary condition for the safe supply of energy in our country and the stable development of the social economy. However, when entering deep mining, the law of mine pressure is obviously different from that of shallow mines. Among them, coal-rock dynamic disasters represented by rock bursts have brought new challenges to mine safety. Under the condition of deep mining, the frequency and intensity of rock burst are much higher than those in shallow mining, and the casualties and economic losses caused by it also p...

Claims

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Application Information

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IPC IPC(8): G01N3/10G01N3/307G01N3/06
Inventor 窦林名贺虎韩广卓蔡宏孔勇蔡武康凯
Owner CHINA UNIV OF MINING & TECH
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