Device and method for simulating surrounding rock plastic zone development and fluid lining structural mechanics response under different supporting forces
A technology of structural mechanics and support force, which is applied in the research of engineering tunnels and engineering roadways, can solve problems such as the inability to analyze the impact of tunnel support and the inability to determine the thickness of fluid fillings in the development law, achieving high engineering application value and cost low cost and easy operation
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Embodiment 1
[0040] see Figure 1-5 , a device for simulating the development of surrounding rock plastic zones and the mechanical response of fluid lining structures under different support forces, it includes a support force regulator 1, and the support force regulator 1 includes two high-strength plates 4, and the high-strength The diagonal position of the plate 4 is connected by two vertically arranged limit anchor rods 2, the high-strength plate 4 on the top is fixed on the top of the limit anchor rod 2 through the screw disk 3, and the high-strength plate 4 on the bottom A force-bearing device 5 is supported, and two symmetrically arranged high-strength segments 17 are arranged inside the force-receiving device 5, and a spring damper 16 is installed between the high-strength segment 17 and the inner wall of the force-bearing device 5 .
[0041] Further, the high-strength plate 4 is a high-strength tempered glass or acrylic plate, and a through hole for passing through the limit anch...
Embodiment 2
[0052] Any one of the experimental methods for simulating the development of surrounding rock plastic zones and the mechanical response of fluid lining structures under different support forces includes the following steps:
[0053] Step1: Material preparation: Prepare high-strength PVC pipe, carbon fiber cloth, rubber sheet, expansion agent, sand, cement, mica sheet, fiber anchor rod, pressure sensor, wood board, screw disk, stress plate, support force regulator and force device;
[0054] Step2: Make the stress device 5: Use high-strength PVC pipe 9 to make a stress device with a height of H and a cross-sectional diameter of D with one end closed and one end open; carbon fiber cloth is used to wrap the outer surface and bottom of the stress device, and the wrapped The thickness is adjusted according to the experimental requirements;
[0055] Step3: Make the support force regulator 1: use the screw plate 3 to fix the two fiber anchor rods 2 passing through the diagonal prefab...
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