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Multi-open caisson cluster design method

A design method and caisson technology, applied in caissons, buildings, infrastructure engineering, etc., can solve problems such as caisson scale is not too large, bridge load is not large, and construction is difficult, so as to improve positioning accuracy and installation accuracy, reduce Create Difficulty Effects

Pending Publication Date: 2019-06-21
CCCC SECOND HARBOR ENG +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For general-span bridges, because the bridge load is not large, the corresponding caisson scale is not too large, and the implementation difficulty of existing technologies is controllable
However, for very large bridges, the scale of the caisson is correspondingly very large. For example, the size of the caisson foundation for the north anchorage of the Wufengshan Yangtze River Bridge reaches 86.9m (length) × 58.7m (width) × 115m (height). The size of the caisson in the water of the main tower of the bridge reaches 86.9m (length) × 58.7m (width) × 115m (height). Due to the large size and heavy weight of the large caisson, the construction is very difficult. serious quality and safety issues

Method used

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  • Multi-open caisson cluster design method

Examples

Experimental program
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Embodiment 1

[0020] Such as figure 1 , figure 2 As shown, in this embodiment, a multi-caisson cluster design method uses several caisson units 1 to place and install respectively, and then uses a connecting structure to cover and install on the top of the caisson units 1 to connect the caisson units 1 For the overall caisson.

[0021] During caisson construction, a shaft-shaped caisson foundation is first made on the surface, and then the caisson is gradually sunk under the action of its own weight by continuously excavating soil from the well under the enclosure of the well wall. After reaching the predetermined design elevation, Back cover again.

[0022] In the foundation implementation of large-scale projects such as long-span suspension bridge caisson anchorage foundation, main tower deep-water foundation of cross-river bridge, ultra-large-scale ultra-deep water foundation, etc., the size of caisson required is relatively large, and it is difficult to directly construct caisson in ...

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Abstract

The invention discloses a multi-open caisson cluster design method, which comprises the following steps: placing and mounting a plurality of open caisson units, mounting connecting structures to coverthe open caisson units so as to connect the open caisson units into an integral open caisson. The beneficial effects of the invention are as follows: a plurality of small open caisson units are constructed in advance; then the plurality of small open caisson units are connected into a whole through a bearing platform; and therefore the manufacturing difficulty, the transportation difficulty, thepositioning difficulty, the mounting difficulty and the construction difficulty of the open caisson can be effectively reduced; a first small open caisson unit is positioned, and other open caisson units are positioned on the basis of the first open caisson unit, so that the positioning precision and the mounting precision of the open caisson units can be improved, and the positioning precision and the mounting precision of the whole open caisson can be improved.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a multi-caisson cluster design method. Background technique [0002] The caisson is widely used in the construction of large bridge foundations, such as the anchorage caisson foundation of the suspension bridge, the main tower foundation of the cable-stayed bridge or the suspension bridge, etc. For general-span bridges, because the bridge load is not large, the corresponding caisson scale is not too large, and the implementation difficulty of the existing technology is controllable. However, for extra-large bridges, the scale of the caisson is correspondingly very large. For example, the size of the caisson foundation for the north anchorage of the Wufengshan Yangtze River Bridge reaches 86.9m (length) × 58.7m (width) × 115m (height). The size of the caisson in the water of the main tower of the bridge reaches 86.9m (length) × 58.7m (width) × 115m (height). Due to the...

Claims

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Application Information

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IPC IPC(8): E02D27/18E02D23/00E02D25/00
Inventor 李有为郑清刚张鸿张永涛
Owner CCCC SECOND HARBOR ENG