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Vibration cracking test device under energy control

A test device and energy control technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of immature vibration cracking technology, and achieve the effect of strong practical significance

Inactive Publication Date: 2016-03-02
XIAN UNIV OF SCI & TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

At present, domestic research on vibration-induced cracks only involves a small number of field applications and experimental studies, and the use of vibration fracturing technology is still immature. Therefore, a targeted research and development of vibration fracturing tests under energy control device is necessary

Method used

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  • Vibration cracking test device under energy control

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Embodiment Construction

[0016] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0017] like figure 1 As shown, the energy-controlled vibration cracking test device of the embodiment of the present invention includes an unconfined compressive strength tester 5, a test piece 2, an annular iron hoop 1 for fixing the test piece, and an excitation device for vibration output. The vibration mechanism, the vibration mechanism comprises a vibration exciter 6, a support 7, a transmission screw 4, a power amplifier 3 and a signal generator 8, the power amplifier 3 is connected with the signal generator 8, and the signal generator 8 is connected with the power amplifier 3 after being connected The exciter 6 is connected; the exciter 6 is fixed on the support 7, the test piece 2 is set on the unconfined compressive strength tester 5, and ...

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Abstract

The invention discloses a vibration cracking test device under energy control. The device of the invention comprises an unconfined compression strength tester, a test piece, an annular iron hoop for fixing the test piece and a vibration exciting mechanism for vibration output. The vibration exciting mechanism comprises a vibration exciter, a support, a drive screw, a power amplifier and a signal generator. The power amplifier and the signal generator are connected. The signal generator is connected to the power amplifier which is then connected to the vibration exciter. The vibration exciter is fixed on the support. The test piece is arranged on the unconfined compression strength tester. The annular iron loop is arranged at the central position of the test piece and is vertical to the axial direction of the test piece. Two ends of the drive screw are respectively connected to the vibration exciter and the annular iron loop. Through vibration adjustment, a vibration cracking test of coal-rock mass under energy control can be greatly simulated, thus providing researches with reliable basis and data support. Meanwhile, by vibration excitation of the test piece, disturbance influence of mechanical vibration on coal-rock mass during underground mining process can be greatly simulated.

Description

technical field [0001] The invention belongs to the technical field of cracking tests, in particular to a vibration cracking test device under energy control. Background technique [0002] Coal and rock mass fracturing usually adopts hydraulic fracturing. Hydraulic fracturing is a stimulation measure to improve the permeability of oil layers near the bottom of a well and increase the production of oil wells. Hydraulic fracturing requires the use of fracturing equipment (mainly high-pressure water pumps) to squeeze high-viscosity fracturing fluid into the formation under high pressure, thereby creating new or expanding old oil layer fractures. This fracturing technique requires a very large amount of water, and chemical substances are often added to the water, resulting in waste and pollution of water resources. Therefore, a new cracking technology is urgently needed. At present, domestic research on vibration-induced cracks only involves a small number of field application...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/02
CPCG01N3/02
Inventor 李树刚林海飞翟雨龙赵鹏翔肖鹏丁洋魏宗勇
Owner XIAN UNIV OF SCI & TECH
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