On the morning of April 25th, with the excavator excavation, the construction of the Xinglin Village Tunnel of Pingqing Railway undertaken by China Railway First Bureau officially started, which is the first tunnel of Pingqing Railway began construction; The commencement of the two projects marks the start of the construction of the Pingliang section of the Pingqing Railway.
Xinglin Village Tunnel is located in the territory of Baishui Town, Kongtong District, with a total length of about 6478 meters, belonging to a single-hole double-lane tunnel, the V. grade surrounding rock in the tunnel accounts for 34.9%, and the maximum buried depth is about 200 meters.
The total length of the Baishui Bridge is 966.46 meters, and the hole span is arranged with 29-32 meters cast-in-situ simply supported beams. The 10-1# pile foundation drilled this time has a pile diameter of 1.25 meters and a pile length of 50 meters, and a rotary drilling rig is used to form holes.
According to Li Kun, the project leader of China Railway First Bureau, in order to ensure the smooth tunneling, the project department completed the acceptance and put into use the first project center laboratory and the first mixing station in strict accordance with the relevant requirements of the Lanzhou Engineering Construction Headquarters of China Railway Lanzhou Bureau Group Co., Ltd.
According to reports, since the start of the project, the project department has successively overcome the difficulties of land acquisition and demolition, heavy construction coordination tasks, and high quality control requirements, and has always maintained the attitude of "striving for goodness and striving for first-class", and has been in strict accordance with the time and measures required by the standardized promotion plan for the start of construction of the Pingqing Railway, and has continuously created good results in the construction of the project, laying the foundation for the comprehensive construction of this bid section.
With a total length of about 92 kilometers, the Pingqing Railway is a national Class I double-track passenger and freight co-linear electrified railway from Pingliang to Qingyang in our province, and is a key project included in the national medium and long-term railway network planning, the "14th Five-Year Plan" railway development plan, and the "Outline of the Yellow River Basin Ecological Protection and High-quality Development Plan", and is an important part of the Lanzhou-Dingxi-Pingliang-Qingyang-Yan'an railway planned by our province. The construction of the project is of great significance to promote the foreign exchanges between Pingliang and Qingyang, promote the development of cultural and tourism resources along the route, consolidate and expand the achievements of poverty alleviation and rural revitalization, and promote the high-quality development of regional economy and society.