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Adjustable electronic temperature control three-dimensional shotcrete performance test experimental device and method

A technology of shotcrete and testing experiments, applied in measuring devices, instruments, etc., can solve the problems of cumbersome operation, time-consuming and laborious, and inability to simulate roadways.

Active Publication Date: 2020-10-20
SHANDONG UNIV OF SCI & TECH
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  • Claims
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Problems solved by technology

The existing experimental devices are not perfect enough to truly simulate the concrete spraying and performance testing at different positions on the top, bottom and side walls of the roadway in the high ground temperature environment of the roadway. At the same time, the operation is cumbersome, time-consuming and laborious

Method used

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  • Adjustable electronic temperature control three-dimensional shotcrete performance test experimental device and method
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  • Adjustable electronic temperature control three-dimensional shotcrete performance test experimental device and method

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Embodiment Construction

[0025] Below by embodiment and in conjunction with accompanying drawing, the present invention will be further described:

[0026] Such as figure 1 — Figure 4 As shown, an adjustable electronic temperature-controlled three-dimensional sprayed concrete performance test experimental device is mainly composed of a control system, a specimen clamping system, a heating system, a spraying system and a testing system.

[0027] The control system is mainly composed of a control box 1 and a temperature regulator 2 installed in the control box 1 .

[0028] The specimen clamping system is mainly composed of a three-sided frame 3 , a specimen clamping frame 4 , a first horizontal hydraulic prop 5 and a clamping head 6 . The three-sided frame 3 is arranged directly above the control box 1, which is convenient for space arrangement and saves occupied space. The three-sided frame 3 is surrounded by a top plate 3a, a side plate 3b and a bottom plate 3c, and the opening of the three-sided ...

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Abstract

The invention discloses an adjustable electronic temperature control three-dimensional shotcrete performance test experimental device. The device comprises a control system, a test piece clamping system, a heating system, an injection system and a test system, wherein the test piece clamping system comprises a three-side frame arranged right above a control box, four corners of an inner cavity ofthe three-side frame are respectively provided with a test piece clamping frame, and each test piece clamping frame is provided with a clamping head; the heating system comprises a heating plate and aheater; the injection system comprises a second horizontal hydraulic prop, a fan, a material collecting box, a material conveying pipe, a rotary spray head, a vertical hydraulic prop and a vertical hydraulic push rod; and the test system comprises a laser velocimeter, an impact force sensor, a stress sensing sheet and a temperature sensor. The invention further discloses an experimental method ofthe device. The device can simulate the high-terrestrial-heat environment of the roadway, immediately performs three-dimensional concrete spraying of the roadway, and performs performance test on thejet impact force, the springback rate and the initial bonding strength of sprayed concrete under the influence of a high-temperature condition.

Description

technical field [0001] The invention relates to the technical field of concrete spraying test devices, in particular to an adjustable electronic temperature-controlled three-dimensional sprayed concrete performance test device and method for laboratories. Background technique [0002] At present, in the deep mining of mines, tunnels and other fields often face high ground temperature disasters. Therefore, in the process of strengthening the roadway, in order to make the shotcrete technology more efficient and safe, it is necessary to highly simulate the real disaster conditions, and then accurately test various performance parameters in the shotcrete spraying process, so as to ensure the accuracy of the experimental data and real effectiveness. The existing experimental devices are not perfect enough to truly simulate the high ground temperature environment of the roadway, concrete spraying and performance testing at different positions on the top, bottom and side walls of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/02
CPCG01D21/02
Inventor 刘兆霞赵继鹏刘国明陈连军郭楠孟祥瑞郭晓晗柴顺杰
Owner SHANDONG UNIV OF SCI & TECH
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