Facing the complex operation environment, the rail transit company coordinates the hoisting operation site in the whole process.
All metro people entered the sprint state of “full power, decisive battle and decisive victory”, detailed tasks, inverted time and wall chart battle, ensured the opening of Metro Line 1 on schedule, and provided a safe, comfortable and convenient riding environment for Nantong citizens.
The starting section is adjacent to Jinfeng Building and Tiandi Huating.
If there is any deviation in the axis, propulsion, torque and other relevant data, further inspection is required to prevent serious safety problems.” Zhangchengdong, a shield engineer who was awarded the May Day Labor Medal of Nantong this year, said that as the backbone of the risk management and control team and the shield technology team, he worked together with the Department team to overcome the key risk construction problems such as shield launching, tunneling, crossing important structures and buildings, risk sources and receiving under the water rich and sand bearing strata, and provided a basis for the 198 safe launching and acceptance of the shield of Nantong metro lines 1 and 2 Receiving and 98 km smooth tunneling provided important technical support.
In the early morning of the 15th, with the safe hoisting of shield machine from yijiaqiao station to Qingnian Road Station of Rail Transit Line 2, the construction task of shield section of Rail Transit Line 2 phase I project was completed, which is also the most difficult shield section of Rail Transit Line 2.
Normally, a shield machine can advance 30 to 50 mm per minute.
At present, the main track laying of Rail Transit Line 1 has realized “tunnel connection”, “rail connection” and “power connection”, entered the stage of no passenger trial operation, and the whole line of Rail Transit Line 2 has been completed.
“Our daily work is mainly to monitor whether the data on these displays and instruments are normal.
↑ click “Nantong urban construction pioneer” above to pay attention to the new progress of Nantong Metro Line 2! Metro shield is an important construction technology in urban metro construction, a construction method of underground tunnel excavation, and a key link in the process of metro construction.
“To build a subway is to build a city, and to build a subway is to benefit people’s livelihood.” The construction of rail transit is a systematic project.
The overall planning of urban renewal and transformation and rail transit construction can effectively improve the quality of urban functions.
The receiving end is located at the intersection of Qingnian Road and Gongnong Road with heavy traffic, near Nantong hotel.
The shield section from yijiaqiao station to Qingnian Road Station crosses Qingnian Road below, and passes through buildings and structures such as Rujia Hotel and yijiaqiao new village on the side.
In view of the complex surrounding environment and difficult implementation and management, during the whole construction process, the rail transit company strengthened the organization and overall planning, focused on the risk points, strictly grasped the safety control, and the construction management personnel were on duty throughout the whole process, ensuring the implementation quality of each construction link and each process.
In order to give consideration to the smooth surrounding traffic and hoisting safety, the shield machine hoisting is arranged to be carried out after the roads are closed at night, organize the construction unit to coordinate the entry and exit of large hoisting equipment, and assist the traffic police department to command the road traffic.
Source: Nantong daily..
The civil engineering, decoration, electromechanical, municipal and system disciplines of the two lines operate in the same site.
The construction site is narrow, and three starting and six shield hoisting operations are required.
