Recently, the cumulative excavation of the main tunnel of the Zhujiashan Tunnel on Section 2 of the Kangyu segment of the Xi'an-Chongqing High-Speed Railway reached 2,013.9 meters, surpassing the 2,000-meter mark. The Zhujiashan Tunnel is located within Chengkou County, with a total length of 9,958 meters. It is a Class I risk tunnel and one of the controlling works of the Kangyu segment of the Xi'an-Chongqing High-Speed Railway. The tunnel passes through the hinterland of the Daba Mountains, in an area of high mountains and deep valleys with crisscrossing ravines and steep terrain, making construction organization difficult and safety risks extremely high.

At present, the Zhujiashan Tunnel is seizing the golden construction period, formulating scientific and effective measures, refining construction and production tasks, strengthening safety and quality control, assigning responsibilities to individuals, advancing the construction of the Xi'an-Chongqing High-Speed Railway with high quality and efficiency, and striving to meet all annual task targets.