Construction site of the Yifu High-speed 188bet sports betting app download Stone Column Tunnel (drone photo) taken on June 21. Photo by Xinhua News Agency reporter Tang Yi
Xinhua News Agency, Chongqing, June 21 (Reporter Tang Yi) The reporter learned from the Chongqing Coast 188bet sports betting app download Group Chongqing Co., Ltd. that on June 21, the Shizhu Tunnel of the Shanghai-Chongqing-Chengdu River High-speed 188bet sports betting app download Yichang to Fuling Section (hereinafter referred to as Yifu High-speed 188bet sports betting app download) successfully entered the tunnel construction, marking the first tunnel of more than 10,000 meters on the line entered the main construction stage.
Yifu High-speed 188bet sports betting app download is an important part of the river-along channel of my country's "eight vertical and eight horizontal" high-speed 188bet sports betting app download network. The line starts from Yichang City, Hubei Province in the east, passes west through Enshi Tujia and Miao Autonomous Prefecture, Shizhu County, Fengdu County, and Fuling District in Chongqing, and connects to the Changshou North Station of the Zhengzhou-Chongqing High-speed 188bet sports betting app download. The total length of the newly built main line is about 471 kilometers and the designed speed is 350 kilometers per hour.
Shizhu Tunnel is located in Shizhu County, Chongqing City, with a total length of 14,625 meters. It is constructed by 188bet sports betting app download Fifth Bureau. It is the longest tunnel in the Chongqing section of Yifu High-speed Railway and a single-hole double-line tunnel. The geological conditions of the tunnel are complex, spanning the Yuli Railway and Zhangnan Expressway above and passing through the Caojiachong Reservoir below. The construction risk is high and difficult, and it is a key and difficult project on the entire line.
According to Wang Mangu, project manager of Yifu High-speed Railway of 188bet sports betting app download Fifth Bureau, the project team has established a standardized team to start construction, innovatively adopt a full-process mechanized intelligent construction system, adopt advanced mechanized supporting technology, and introduce intelligent equipment clusters such as three-arm rock drilling trolleys, self-propelled hydraulic arch frame trolleys, anchor injection integrated machines and concrete sprayers to form a full-process mechanized operation chain. Through the three-in-one model of "intelligent equipment + digital management + ecological standards", a new breakthrough in tunnel excavation operations is achieved. At present, three sets of large-scale equipment have been debugged. The mechanized tunnel construction team composed of these equipment will be 4 to 6 times more effective than traditional artificial technology, making the safety and quality more stable and reliable.
According to Yang Weidong, commander of the Yifu Command of Chongqing Co., Ltd., the Chongqing section of the Yifu High-speed 188bet sports betting app download has 5 stations, 29 tunnels and 34 bridges. The terrain along the line is large and the geological conditions are complex. The bridge-tunnel ratio is about 94%, which has high requirements for construction technology. At present, 8 construction units are distributed along the Chongqing section, and the main line subgrade, bridge and tunnel projects have entered the substantive construction stage.
It is understood that after the completion of the Shanghai-Chongqing-River High-speed 188bet sports betting app download Project, a new high-speed 188bet sports betting app download channel of 350 kilometers per hour between the Sichuan-Chongqing and Central China regions will be formed, which will greatly facilitate people's travel along the route. It is of great significance to improve the comprehensive three-dimensional transportation corridor of the Yangtze River Economic Belt and promote the high-quality development of the Yangtze River Economic Belt.
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