[Explanation] On September 8, after more than ten hours of continuous operation, the pouring of the 64-meter simple beam of the Xiuning River Bridge on the Chang (Nanchang) Jing (Jingdezhen) Huang (Huangshan) Railway in Huangshan City, Anhui Province was completed. The subsequent construction laid a solid foundation.
[Explanation] It is understood that the Changjinghuang Railway has a total length of 308 kilometers and a design speed of 350 kilometers per hour. The railway connects the two provinces of Anhui and Jiangxi. It is a key railway project in the mid- and long-term national railway plan and an important railway project from the central Jiangxi region to the Yangtze River Delta region. Fast passenger passage.
[Concurrent] Hu Xuesong, Secretary of the Party Working Committee of the Project Manager Department of the Anhui Section of Changjinghuang Railway, China Railway Fourth Bureau
The Changjinghuang Railway is an important channel connecting the central Jiangxi region to the Yangtze River Delta region, and it also provides some assistance for the future integration of transportation in the Yangtze River Delta region.
Today, the successful pouring of the 64-meter cast-in-situ simply supported beams of our Xiuning River Bridge will officially start box girder erection on December 1st (Changjinghuang Railway) Anhui section, opening up a girder channel.
[Explanation] According to reports, the Xiuning River Bridge is located in Xiuning County, Anhui Province. It is one of the important control projects of the Changjinghuang Railway.
The bridge under construction this time spans National Highway 205, the beam surface span is 64 meters, the width is 12.6 meters, the box girder height at the center of the section is 5.586 meters, and the concrete design volume is 942.5 meters. It is currently the largest span high-speed railway under construction in the country. Support beam.
[Concurrent] Hu Xuesong, Secretary of the Party Working Committee of the Project Manager Department of the Anhui Section of Changjinghuang Railway, China Railway Fourth Bureau
What we are currently constructing is the first bid section of the Anhui section of the Changjinghuang High-speed Railway. The section encountered by our Xiuning River Bridge happens to be on the G205 National Road, an important tourist channel across our Huangshan area. The traffic is very large. During this construction, it is necessary to ensure that the traffic is not interrupted, so the design unit designed a 64-meter-span simply supported box girder.
[Explanation] In order to reduce the impact of the new crown pneumonia epidemic and floods, the construction schedule that has been delayed for nearly two months has been regained. The construction unit shall fight the epidemic, face the scorching heat, grab rain, and carry out labor competitions on the premise of ensuring the safety of the staff. Catch up with the schedule in such ways.
The successful pouring of the cast-in-place simply supported beam also provided technical support for the design of longer precast beams in the future.
[Concurrent] Hu Xuesong, Secretary of the Party Working Committee of the Project Manager Department of the Anhui Section of Changjinghuang Railway, China Railway Fourth Bureau
The successful pouring of this 64-meter cast-in-place beam will also provide some parameters for the prefabrication of high-speed railway box girder in our country in the later period, such as the current 24 meters and 30 meters. In the future, we will explore the design of 40-meter prefabricated box girder. The basis and technical reference.
[Explanation] It is understood that the Changjinghuang Railway links the two provinces of Anhui and Jiangxi. It is a key railway project in the national railway's mid- and long-term plan. It is officially included in the national regional high-speed railway network development plan. It is the first of the 13th Five-Year Plan in Anhui and Jiangxi. Push items.
The total length of the project is initially estimated to be 308 kilometers, of which the Anhui section is 88 kilometers, the Jiangxi section is 219 kilometers, the proportion of bridges and tunnels is 79.6%, and the design speed is 350 kilometers per hour. After completion, Huangshan to Jingdezhen will be accessible in more than half an hour, which is important for improving the regional express road network. The layout to form a fast passage from the central Jiangxi region to the Yangtze River Delta region is of positive significance.
Liu Honghe reports from Huangshan, Anhui
Editor in charge: [Wang Yu]