The "Hongpu" went offline. Photo courtesy of respondents
Recently, new progress has been made in the 11th bid project of Shanghai Airport tie line. The total mileage of shield tunneling has exceeded 3,000 meters. The super-large diameter pneumatic mud-water balance shield machine "Hongpu" independently designed and developed by CCCC has played an important role in this project.
According to reports, the cutter head of Hongpu is 14.04 meters in diameter, 114 meters in total length and 3,174 tons in total weight. It not only applies advanced technologies such as optical fiber wear detection of cutters and unique ultra-long distance tunneling without changing cutters (high confined water silt stratum can achieve continuous tunneling over 7,000 meters without changing cutters), but also is equipped with intelligent systems such as intelligent monitoring and automatic guidance, creating a new height of similar tunnel construction equipment at home and abroad, and the localization rate reaches.
At the same time, the intelligent remote safety monitoring and management system can record the tunneling data of the shield machine in real time, realize the independent management of the risk boundary, send out the warning in time and provide the solution plan to ensure the whole life cycle management of the shield machine. The automatic guiding system is equipped with smart eyes for the shield machine, which can more accurately judge the heading direction and working posture of the shield machine, and control the heading accuracy of the shield machine within ±2mm, which not only ensures the heading construction quality, but also greatly improves the intelligent level of the heading operation. Up to now, the "Hongpu" has excavated more than 3,000 meters of tunnels, creating a national record of 650 meters per month for super-large diameter shield machines and a new world record of 16 rings and 32 meters per day.
"In the deep underground of the city, there is no need for engineers to make manual decisions and operations. Shield machines weighing thousands of tons and more than 100 meters can automatically dig tunnels such as subways, highways and high-speed railways through artificial intelligence." This is the future development trend of shield machines and the biggest dream of shield machines. In order to realize this dream, the shield machine must have the necessary core technology to realize autonomous "cruise" tunneling and intelligent segment assembly under unmanned driving. By then, technicians and operators can watch the shield machine realize autonomous tunneling under the control of artificial intelligence through the monitoring screen only outside the tunnel.
"The core technology of unmanned tunneling of shield machine in China Communications Day has become increasingly mature. In the future, the existing technology will be further optimized and integrated, and the super-large diameter shield machine that realizes independent tunneling and independent assembly will be developed and accelerated into the new era of unmanned tunneling of shield machine." Zhongjiaotian and the relevant person in charge introduced it. (Reporter Wang Lianxiang)
The tunnel formed by "Hongpu" excavation. Photo courtesy of respondents
Internal structure of Hongpu. Photo courtesy of respondents
The "Hongpu" went offline. Photo courtesy of respondents
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