[Shenjiang No. 1 participated in the construction of the deepest submarine tunnel]On August 23, China's self-developed subsea tunnel shield machine rolled off the assembly line in Changsha, Hunan. The equipment shield machine has an excavation diameter of 13.42 meters, a total length of 130 meters, and a total weight of 3,800 tons. It will participate in the construction of China's deepest submarine tunnel-the Zhujiangkou Tunnel of the Shenzhen-Jiangmen Railway. The Pearl River Mouth Tunnel is a key control project of the Deep River Railway. "Shenjiang No. 1" crosses the section with a total length of 3590 meters. The entire line is tunneled downhill for a long distance and passes through the Pearl River estuary. The engineering geological conditions are extremely complicated. Editor/Xu Shengpeng
The fourth phase of Huaneng Yuhuan Power Plant has completed the delivery of the world's first 650 ℃ coal-fired demonstration unit HT700R steam turbine rotor in Shanghai. The rotor adopts domestically produced high-temperature alloy and collaborates with multiple units to tackle the challenges of the entire chain, marking the emergence of new materials from the laboratory and laying a solid foundation for the timely production of core components for this national major scientific and technological research project. Editor/Min Jing
The main structure of the signal complex building for the railway from Yining City to Aksu City in Ili Prefecture, constructed by CR21G, has been topped out, making it the first topped out signal building on the entire line. The project is located near the operating line, with strict construction control measures. After the completion of the railway from Yining City to Aksu City in Ili Prefecture, it will fill the gap in the Tianshan Railway, weave a large railway network in Xinjiang, and reduce logistics costs between the north and south of Xinjiang. Editor/Min Jing