At 8:30 on October 30, the first main tower pier cap of the Hongqili Waterway road-rail bridge on the Shenzhen-Jiangmen Railway was completed, marking a breakthrough in the foundation construction of the main tower pier.

The newly built Shenzhen-Jiangmen Railway has a main line length of 116 kilometers. The main bridge of the Hongqili Waterway combined road-rail section of Section 8 of the Shenzhen-Jiangmen Railway, constructed by China Railway Major Bridge Engineering Group, is 1.41 kilometers long with a main span of 808 meters. It is the world's first cable-stayed bridge of a semi-floating system with asymmetric two towers and two cable planes and ultra-short side spans for combined road-rail construction, and is a key controlling project of the entire line. The upper deck of the bridge is an eight-lane urban expressway, and the lower deck is a four-track high-speed railway.

The cap of main tower pier No. 49 poured this time is 55 meters long, 39 meters wide and 7 meters high, with a total volume of about 15,000 cubic meters of C50 concrete, making it the largest pier cap among railway bridges under construction in the Guangdong-Hong Kong-Macao Greater Bay Area.

During the concrete pouring, the builders preset and embedded temperature-measuring electronic components in the concrete to transmit temperature measurement data to an intelligent temperature control terminal. Through mobile phones, engineering personnel can view historical and real-time trends of concrete temperature data anytime and anywhere, and adopted measures such as manual ice addition and timely adjustment of cooling water flow through the mobile temperature control monitoring system APP to keep the water temperature within a scientific and reasonable range, thereby ensuring the construction quality of the super-large-volume concrete.

The Shenzhen-Jiangmen Railway is an important part of the coastal corridor of the national "Eight Vertical and Eight Horizontal" high-speed railway main network. It will enable half-hour high-speed rail connectivity between the Shenzhen Qianhai Free Trade Zone and the Guangzhou Nansha Port Free Trade Zone, further building a "Greater Bay Area on rails".