Xiongxin expressway is a new channel connecting Guangdong and Jiangxi provinces, which can greatly improve the traffic location conditions of Nanxiong City and promote economic and social development. At present, the project is setting off a big upsurge, successfully pouring precast box girders and bridge columns, and the project construction has entered the accelerated stage.
Recently, the author walked into xiongxin high-speed precast beam reinforcement processing plant, the machine rumbled everywhere, and transportation vehicles shuttled back and forth. At the scene, the workers were busy welding reinforcement. On the precast box girder formwork, the workers carry out reinforcement binding and other work in strict accordance with the design requirements and construction specifications to ensure the successful pouring of precast box girder.
“The project adopts fully automatic integral hydraulic formwork combined with advanced construction technologies such as safety operation platform, which makes the formwork assembly and disassembly fast and efficient, and the safety operation platform stable and reliable.” Wang Bo, deputy director of xiongxin Expressway Management Office of Guangdong Communications Group, introduced that prestressed tensioning has the characteristics of “intelligent control, real-time tracking and timely correction”, which realizes the internal reality and external beauty of beam concrete quality.
The author learned that there are 2755 precast beams and slabs along the whole line of xiongxin expressway, 16 beam types, 2591 standard beams and 164 non-standard beams. The application of advanced technology provides construction parameters and technical support for accelerating the construction progress and ensuring the project quality.
Pingtian interchange hub is one of the five hubs of xiongxin expressway. The bridge column pouring has been carried out in this bid section. The bridge column pouring is carried out in strict accordance with the standardized guidelines, and the details are optimized and improved.
“After the column construction is completed, the capping beam will be constructed synchronously. After the capping beam construction is completed, it will be transferred to the superstructure construction of the whole beam erection.” Tan Zheng, the person in charge of the second civil engineering bid of xiongxin expressway, said.
At present, the requisition and demolition within the red line of xiongxin expressway project has been fully completed by the end of February this year. At present, the subgrade of the main project has been completed by 32%, and the bridge and culvert structures have been completed by 23%. The project is in the stage of barrier free large-scale work and fast progress.
“Next, the management office will strictly grasp the epidemic prevention and control according to the five implementation, scientifically and reasonably arrange the construction plan, carry out comprehensive construction, further increase the investment of construction resources, and set off a storm of labor in the rainy season.” Wang Bo told the author that according to the requirements of Ping An Centennial quality project, strengthen the control of safety and quality to ensure that the project is opened to traffic with high standards and high quality.
