of March 14, after 38 hours of continuous hard work, the concrete pouring of the bottom plate of the "8" shaped north anchorage rear cabin of Yanji Yangtze River Bridge, which was constructed by China Railway Bridge Bureau of Hubei Trading Investment, was completed, marking the completion of the bottom sealing of the front and rear cabins of the anchorage before the flood season of 2023, laying a solid foundation for the safe construction of the anchorage in the next step. The north anchorage
of Yanji Yangtze River Bridge of
China Railway Major Bridge Engineering Group
adopts a unique "8" -shaped gravity anchorage structure
, which has the longest construction period in the
concrete engineering of the whole line of Yanji Yangtze River Bridge. The total concrete consumption of
the largest key project
is 420,000 cubic meters
, with a total weight of more than 1 million tons
. Its scale is rare
in the world. The construction of the bottom slab is divided into six times of pouring and forming
, and the total concrete is poured. The construction of the north anchorage of the
bridge is nearly 50 days
ahead of schedule compared with the construction group plan. The builders
of China Railway Bridge Bureau handed over the excellent answer sheet
of Spring Endeavor in the process of concrete pouring. L0 UNK1 7 builders are faced with problems such as single pouring 0 HTML 0 UNK1 8 large concrete volume, heavy resource allocation task 0 HTML 0 UNK1 9 difficult quality control 0 HTML 0 UNK2 0 to ensure the smooth completion of bottom plate pouring 0 HTML 0 UNK2 1 project department advanced deployment, Repeatedly demonstrate the technical 0 HTML 0 UNK2 2 and organization scheme, A series of effective measures have been taken 0 HTML0 UNK2 3 for the single bin plane of the anchor base plate 0 HTML0 UNK2 4 for the large size (diameter up to 75 meters) and the total thickness of 6 meters 0 HTML0 UNK2 5 for the large hydration heat of mass concrete 0 HTML0 UNK2 6 for the large shrinkage deformation of the large size leading to the problem of cracking 0 HTML0 UNK2 7 Using "double mixing technology" 0 HTML 0 UNK2 8 and composite high performance expansion agent to prepare 0 HTML 0 UNK2 9 low temperature rise, low shrinkage, high crack resistance excellent concrete 0 HTML 0 UNK3 0 and play the bridge Bureau 0 HTML 0 UNK3 1 bridge scientific research, engineering design 0 HTML 0 UNK3 2 civil construction, Equipment R & D 0 HTML 0 UNK3 3 Advantages of "Four in One" 0 HTML 0 UNK3 4 Introduction of 0 HTML 0 UNK3 developed by China Railway Bridge Research Institute 5 Intelligent temperature control system for mass concrete 0 HTML 0 UNK3 6 Dynamic and precise measurement and control of temperature field of concrete components 0 HTML 0 UNK3 7 Large plane size of anchorage 0 H TML0 UNK3 8 It is difficult to control the alignment and flatness of large-area steel bar binding 0 HTML0 UNK3 9 Work division and construction sequence are easily disjointed 0 HTML0 UNK4 0 For these problems 0 HTML0 UNK4 1 The project department has passed the technical disclosure 0 HTML0 UNK4 2 Quality training, process test, Construction deduction 0 HTML0 UNK4 3 Grid division of labor and other means 0 HTML0 UNK4 4 Effectively ensure the safety and quality of construction 0 HTML0 UNK4 5 and constantly accelerate the work efficiency 0 HTML0 UNK4 6 To ensure the high quality and efficient completion of floor pouring 0 HTML0 UNK4 7 The project department strengthens communication with all parties 0 HTML0 UNK4 8 Strengthen Process connection 0 HTML0 UNK4 9 Compression process conversion time 0 HTML0 UNK5 0 Scientific and precise scheduling of resources 0 HTML0 UNK5 1 Anchorage bottom plate pouring 0 HTML0 UNK5 2 Staged and staggered process construction of front and rear warehouses 0 HTML0 UNK5 3 Maximize the use of manpower, Material resources 0 HTML 0 UNK5 4 At the same time 0 HTML 0 UNK5 5 Yanji Yangtze River Bridge main pier 0 HTML 0 UNK5 6 is also under rapid construction 0 HTML 0 UNK5 7 plays the "Concerto" of Spring Day 0 HTML 0 UNK5 8 Yanji Yangtze River Bridge adopts the design of double towers and single span and crosses the river with a main span of 1860 meters. It is the world's first suspension bridge with four main cables of different sag and the world's largest span double-deck suspension bridge currently under construction. For such a double-deck suspension bridge, the anchorage can be described as the "anchor", and its role is extremely critical. 0 HTML0 UNK5 9 Yanji Yangtze River Bridge is the second river-crossing channel connecting Ezhou and Huanggang, with an expressway on the upper level and an urban expressway on the lower level. The line of the second river-crossing channel (Yanji Yangtze River Bridge and Connection) in Hubei Province is about 26 kilometers long. It is a comprehensive supporting project for Hubei Province to build the fourth and first international logistics hub (Huahu Airport) in the world and the first in Asia. It is the key support for the construction of Huanggang Airport Economic Zone and the comprehensive transportation system for the construction of waterway and air transport in eastern Hubei Province. It is of great significance to give full play to the comprehensive benefits of the core logistics hub, improve the value of land use and investment attraction, stimulate the rapid growth of regional economy, and promote the high-quality development of the integration of Wuhan, Hubei, Huang and Huang. 0HTML0UNK60
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