Test device and method for measuring dynamic bonding strength of sprayed concrete under blasting disturbance
A technology of shotcrete and bond strength, which is applied in the direction of measuring devices, mechanical devices, instruments, etc., can solve the problems of not being able to obtain the dynamic bond strength of shotcrete, and achieve true and reliable test data, easy operation, and convenient loading methods Effect
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[0028] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will be described first with reference to the accompanying drawings. according to figure 1 Shown is a test device for measuring the dynamic bond strength of shotcrete under blast disturbance, including a test piece 8, which is a rock-shotcrete composite structure, and the test device also includes a test frame 1, the Test stand 1 comprises 2 vertical beams 11 and upper beam 12 and lower beam 13 that are connected on the upper and lower end faces of said vertical beam 11, the below of said upper beam 12 is provided with adjustable length steel rope 2, so One end of the steel rope 2 is connected with a columnar drop hammer 3 whose lifting height can be adjusted through the steel rope 2. The lower bottom surface of the upper beam 12 is fixed with a reflection rod 4, and the drop hammer 3 is slidably ...
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