On March, 20265438, KLOC-0, Jinshan Tunnel started the comprehensive reconstruction project of Jinshan Tunnel West Tunnel, with a total investment of 8 million yuan. During the construction period, motor vehicles are prohibited from entering. The main reconstruction contents of the project are: (1), vault seepage, wall and foot seepage, pavement seepage, slippery pavement and construction joint (kerf) seepage. (2) There are local cavities or insufficient lining thickness in the tunnel lining; Repair the defects such as insufficient strength of pavement inverted arch concrete, poor impermeability and failure to set inverted arch in some sections as required. 2021May 25th, Jinshan Tunnel resumed two-way traffic.