Application of Detection Technology in Main Tunnel Excavation in the Construction of Water Diversion Tunnel
This paper studies the application of detection technology in main tunnel excavation of water diversion tunnel. The detection technology is used to calculate the length of water diversion tunnel. Based on the difference between detection objects and other objects, the close relationship between detection wave propagation velocity and electromagnetic parameters is obtained, and the length of the main tunnel in the construction of water diversion tunnel is calculated. The infrared light guide is introduced into the excavation of main tunnel construction, and the construction scheme of main tunnel excavation and primary support is formulated through the construction measurement, tunnel curtain excavation and primary support. In order to prevent geological disasters such as collapse during the main tunnel excavation, the grouting technology is introduced into the main tunnel excavation in the construction of water diversion tunnel. According to the construction mode of subsection drilling grouting, the grouting equation of the main tunnel excavation in the construction of water diversion tunnel is constructed. By setting the structure of the anti-grouting wall and the anti-grouting plate, the grouting pressure and diffusion radius are calculated and combined with the layout of the grouting hole in the main tunnel, the construction of main tunnel excavation in water diversion tunnel is completed. The example results show that the proposed technique can stabilize the echo frequency of poor geological body detection near the face and side wall during the excavation of the main tunnel, and control the damage resistance coefficient of the side wall of the tunnel to more than 0. 9. Construction according to the detection results can reduce the construction cost.
万方数据
维普
