Rock mass test piece ultrasonic testing device
A test equipment, ultrasonic technology, applied in the measurement of ultrasonic/sonic/infrasonic waves, the use of sonic/ultrasonic/infrasonic waves to analyze solids, measurement devices, etc.
Active Publication Date: 2012-12-19
INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
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Problems solved by technology
[0002] Determining the sound wave velocity and amplitude of rock mass specimens under laboratory conditions usually requires an ultrasonic tester, an ultrasonic transducer, a specific fixture and a pressurized system. The experimental system needs to be designed according to the specific purpose requirements for each experiment. Fixtures and pressurization systems, there is no universal instrument at present, and it is very inconvenient to use. At the same time, the compressive stability of the transducer and the effective length of the test piece after pressurization affect the accuracy of wave velocity and amplitude.
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[0023] The core of the present invention is to provide a rock mass test piece ultrasonic testing equipment, the structural design of the testing equipment can be used to measure the complete rock mass test piece, parallel jointed rock mass test piece, and inclined jointed rock mass test piece under different normal pressures. The acoustic velocity and amplitude of different types of rock specimens.
[0024] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0025] Please refer to figure 1 , figure 2 and image 3 , figure 1 It is a structural schematic diagram of the rock mass test piece ultrasonic testing equipment in an embodiment of the present invention; figure 2 for figure 1 Schematic diagram of the structure of the sleeve; image 3 for figure 1 Schematic diagram of...
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The invention discloses a rock mass test piece ultrasonic testing device which comprises a framework device, a rock mass test piece restraining device, two ultrasonic transducers and a pressurizing device, wherein the rock mass test piece restraining device is a sleeve cylinder (9) fixed in the framework device, and a rock mass test piece (10) and the two ultrasonic transducers arranged on two ends of the rock mass test piece (10) are supported by the sleeve cylinder (9); the bottom of the framework device is provided with the pressurizing device; the pressurizing device butts against the ultrasonic transducer at the bottom end of the pressurized rock mass test piece (10), and meanwhile the ultrasonic transducer at the top end of the rock mass test piece (10) butts against the top of the framework device. The structural design of the testing device can be used for measuring sound wave speed and amplitude of different types of rock mass test pieces of a complete rock mass test piece, a parallel jointed rock mass test piece and an oblique jointed rock mass test piece and the like under different normal pressure.
Description
technical field [0001] The invention relates to the technical field of sound wave velocity and amplitude testing in rock mechanics, in particular to an ultrasonic testing device for a rock mass test piece. Background technique [0002] Determining the sound wave velocity and amplitude of rock mass specimens under laboratory conditions usually requires an ultrasonic tester, an ultrasonic transducer, a specific fixture and a pressurized system. The experimental system needs to be designed according to the specific purpose requirements for each experiment. Fixtures and pressurization systems, there is no universal instrument at present, and it is very inconvenient to use. At the same time, the compressive stability of the transducer and the effective length of the test piece after pressurization affect the accuracy of wave velocity and amplitude. For rock mass specimens containing multiple joints, the effective length of the specimen becomes smaller as the applied pressure incr...
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Inventor 黄晓林祁生文郭松峰
Owner INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI