subject: Second West-east Sidelights On The Yangtze River Tunnel Shield (figure) - Second West-east, The [print this page] Second West-East Sidelights on the Yangtze River Tunnel Shield Jiujiang Shield panoramic site
11 late, sneaked into the end of Yangtze River 17 months old Shield Being lifted into the ground, the Yangtze River Tunnel victory, Second West-East through the Yangtze River tunnel successfully. This is not only designed
Pipeline Bureau designed the first shield, is also China Oil Self-designed "the first shield", indicates that China has mastered the oil shield project design.
Shield design to fill the gaps Second-tier East West Route
Wuxue City in Hubei Province and between the cities across the Yangtze River in Jiujiang, Jiangxi, West second-line one of the largest control projects. After all experts, designers common argument, decided to adopt the current widely used by large rivers cross the tunnel through the program.
In Pipeline Engineering has been in a leadership position in the design, the design is still in the shield through the gap. Shield the previous basic design is entrusted with the design capability and experience in professional design of shield designs, and the independence of the mandate by the design company.
Second line from the eastern section of the Yangtze River, 2006 Western Shield project identified, the design company set up the Yangtze River shield design team. Design of the Yangtze River through the head shield to lead the major designers Zhansheng Wen Wei, Han Guiwu so many in-depth field investigation, analysis of geological structure. After several rounds of selection, optimization, coordination, until March 2008, location was finalized through shield.
The south bank of the Yangtze River Shield works mainly originating from the wells, wells and tunnel north receives three parts. Level of shield tunnel through the length of 2588 meters, 40 meters Shield well depth, using caisson, drilling and blasting construction technology, to receive well depth of 12 meters, with construction method of sinking craft.
The preparation of program, design drawings, the design staff tirelessly, full mind and body into the Yangtze River Shield design work. Some of them home, big and small issues aside, some ill take some medicine, losers liquid back to the design positions. In two years time, they gave up almost all the holidays, in order for their "design the company's first shield" early birth.
Design hard surfaced For the design of the company's designers, this challenge is a rare opportunity and a challenge. Speaking of the Yangtze River
Shield project design process, design of the Yangtze River through the head shield Zhansheng Wen emotions. He said the first step to take a good shield design, designers have done a lot of research and preparation. Design stage, they do not shape the design of software, do not have the 3D design platform, and even design data are not available. Designers look on the multi-technical data, consulting experts, consult with the railways, coal, urban design capability and qualification Shield unit designers, learning all kinds of relevant knowledge. Designers to overcome the lack of technology, lack of experience and time is pressing, and less difficult for staff, overtime, work together, quickly mastered the core parameters shield design, development has developed a design software.
Details determine success or failure, every step of the design work must be reliable, safe and prudent. In order to ensure convergence with the shield construction in place, designers repeatedly carry out field investigation, to optimize design. Each change of a design, designers must re-calculated once an argument. Repeatedly demonstrated in the discussions and field collation, the designers will receive extended well out of 40 meters, depth from 15 meters to 12 meters, export and shallower, more conducive to shield the hole. Ride, and preliminary design drawings A version of hard surfaced.
Drawing out, Zhansheng Wen led the designer to the scene. B version of the drawings came out, they went to the scene until version 0 and 1 territory. After repeated amendments to the preliminary design Tender Version, tender documents have been completed. In the construction design, the designers have completed the overall layout of the Yangtze River shield, south shaft design, shaft design north, Tablet design six volumes of A, B version 0 version of the preparation, design of various structural drawings 100, various specifications, calculations, etc. 200 pages, arranging payment to the construction unit, the Yangtze River Shield Project to ensure a smooth start.
