Luoyanshan Tunnel ranks first in Fujian Province. Luoyanshan Tunnel of Xiasha Expressway is located at the junction of Shaxian and Youxi, with a total length of 6,534 meters. The right line of the tunnel was completed this year 1 month. At present, the construction of A8 section of Xiamen-Sha Expressway has entered the final stage, and it is expected that the related ancillary works will be completed within two months. The geological conditions of Luoyanshan Tunnel are complex and the rock strata are severely weathered. It is difficult to ensure the rapid and safe construction of bad geological sections.