Visual device for simulating tunnel excavation

Abstract

The invention belongs to the technical field of tunnel engineering, discloses a visual device for simulating tunnel excavation, and aims to solve the problem that tunnel excavation real simulation andstress deformation state visual detection cannot be realized in a simulation test. The visual device comprises a high-energy accelerator CT scanning system, a turntable system, a tunnel model system,an excavation system and a vibration system. The vibration system is arranged on the upper side of the tunnel model system and is used for simulating construction blasting borne by tunnel surroundingrock or the seismic environment. Tunnel drilling is simulated through a drilling device arranged in the excavation system. A moving device arranged in the excavation system controls the propelling movement of the drilling device. The high-energy accelerator CT scanning system cooperates with the turntable system to achieve visual detection of stress deformation of the tunnel surrounding rock. According to the excavation system and the vibration system, tunnel excavation and stress deformation of the surrounding rock can be truly simulated, and the visual stress deformation state is obtained through the scanning system and the turntable system.

Description

technical field [0001] The invention belongs to the technical field of tunnel engineering, and in particular relates to a visualization device for simulating tunnel excavation. Background technique [0002] In recent years, with the large-scale development of my country's highways, railways, and subways, the proportion of tunnels in the line is getting higher and higher. Especially for the Sichuan-Tibet Railway, which has been under construction, the proportion of tunnels has reached more than 80%. Various problems in the process followed. During the tunnel construction process, the interaction between the cutter head of the roadheader (shield machine) and the rock and soil, the relationship between the rotation speed of the cutter head and the propulsion speed, and the torque of the cutter head, the stability of the tunnel excavation surface, the excavation process (blasting process and During an earthquake) surrounding rock stress, deformation, and damage are the key conce...

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Problems solved by technology

[0004] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problem that the real simulation of tunnel excavation and the visual detection of force deformation state cannot be realized in the test, the present invention provides a visualization device for simulating tunnel excavation, including a high-energy accelerator CT The scanning system, the turntable system and the tunnel model system are characterized in that they also include an excavation system and a vibration system, and the excavation system is used to simulate tunnel drilling; the excavation system includes a drilling device, a moving device and a supporting device , the drilling device is connected to the supporting device through a guide rail slider; the moving device is arranged on the supporting device, and is used to drive the drilling device close to or away from the tunnel model system;

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