Rock burst/rock explosion analog simulation energy storage-time tank device
A technology of impact ground pressure and simulation, applied in the field of geotechnical engineering
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specific Embodiment approach 1
[0022] Specific implementation mode one: as figure 1 Shown, a kind of rockburst / rockburst simulation emulation energy storage-time jar device, it comprises lower loading oil cylinder 2, upper pressure sensor 3, lower pressure sensor 4, lower energy storage-time jar 5, lower rigidity spring 6, Lower spring deformation measuring optical coder 7, lower rolling row 8, lower internal displacement rebound timer 9, lower flexible spring 10, coal and rock test piece 11, extensometer 12, lower rigid pressure plate 13, upper energy storage-time tank 14. Long rigid rod 15, short rigid rod 16, 45° chuck 17, screw rod 18, upper loading cylinder 19, upper displacement recorder 20, upper roller 21, upper rigid spring 22, upper spring deformation measuring light Encoder 23, upper internal displacement rebound timer 24, upper flexible spring 25, upper rigid pressure plate 26, lower displacement recorder 27;
[0023]The cross-sections of the lower energy storage-time tank 5 and the upper energ...
specific Embodiment approach 2
[0031] Specific implementation mode two: as figure 1 As shown, the pit for placing the coal rock specimen is circular or square, the diameter of the pit for placing the circular coal rock specimen is φ50 mm, and the length×width of the pit for placing the square coal rock specimen is 50×50 mm. The surface of the groove for placing the coal and rock test piece is flat, forming a close fitting surface with the sample 11, which is used for placing and positioning the coal and rock test piece 11 to prevent eccentric loading.
[0032] The working process is: First, the open-loop unloading makes the upper and lower loading cylinders reset to zero, the lower end of the extensometer 12 is placed in the extensometer placement groove of the lower rigid pressure plate 13, and is consolidated into one body with screws, and the upper and lower ends of the coal and rock specimen 11 are coated with Vaseline, Reduce friction, and the measurement result is more accurate, then put the coal ro...
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