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Super-large deep-water stepped caisson and its earth-borrowing strategy and construction method

A construction method and step-type technology, applied in caisson, infrastructure engineering, construction and other directions, can solve the problems of increasing the scouring effect of water flow on the pier foundation, increasing the cost of building bridge materials, increasing the weight of the caisson, etc. Operational efficiency, overall weight reduction, effect of reduced requirements

Active Publication Date: 2022-04-12
CCCC SECOND HARBOR ENG +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The upper and lower sections of the traditional caisson foundation are the same, increasing the size of the caisson will inevitably reduce the cross-section of the water area, thereby increasing the scouring effect of the water flow on the pier foundation; in addition, increasing the size of the caisson structure will inevitably increase the weight of the caisson , on the one hand, it increases the cost of materials for building bridges, and on the other hand, it also increases the difficulty of construction

Method used

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  • Super-large deep-water stepped caisson and its earth-borrowing strategy and construction method
  • Super-large deep-water stepped caisson and its earth-borrowing strategy and construction method
  • Super-large deep-water stepped caisson and its earth-borrowing strategy and construction method

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Embodiment

[0053] Such as Figure 1 to 7 As shown, in the embodiment given in the present application, the step size of the stepped die 1 is about 95m × 58m, the height is about 64m, wherein the steps below the stairs are about 43m; the steps of the stepped Shenjing 1 are done after the construction is completed The well bottom is about -65m. The steps of steps of the steps of the steps are the steel shell structure. The lower part is the stepped structure of the upper portion of the large heavy sunkings. The steps of the steps of the steps of the steps of the steps are round-end structures. After the Shenjing is in place, the lower part Located under the mud surface, the top of the upper small sink is adjacent to the water surface; the step-type indifferent well 1 consists of the well wall 9 and the upper and lower well holes 10, and the concrete is filled in the insertion process in the insertion of the insertion; step The uppermost end of the sink 1 is the blade pin 11 structure, and the u...

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Abstract

The invention discloses a super-large deep-water stepped caisson, comprising: a lower caisson and an upper caisson, the lower caisson and the upper caisson form a stepped structure with the central axis coincident, the lower part is larger and the upper part is small, the lower part is The height of the caisson is 1.8 to 2.2 times the height of the upper caisson, and the two ends of the super-large deep-water stepped caisson are arc-shaped structures. Below, the top of the upper caisson is located on the water surface. The invention also discloses a soil-taking strategy and construction method for a super-large deep-water stepped caisson. The sinking of the caisson adopts the sinking method of pouring concrete in the wall of the caisson while taking soil. The step-type caisson and earth-borrowing strategy and construction method of the present invention, under the premise of ensuring operable operation, realize the relatively simple and convenient operation of each process conversion in the implementation process, shorten the construction period on key lines in the bridge construction process, and improve the construction efficiency. Work efficiency of caisson sinking construction.

Description

Technical field [0001] The present invention relates to the field of industrial construction technology. More specifically, the present invention relates to an ultra-large deep water steps type industrial and its soil strategies and construction methods. Background technique [0002] In the field of bridge construction, the use of Shen Chang as the bridge basis, more and more, especially in the construction of the large-scale span bridge in the river or cross-sea, the Shenjing foundation due to its own stability, excellent load capacity and The applicable capacity of complex geological conditions has become the first choice for the main pier or anchor. [0003] The water in the water in the water is mostly a rectangular or round-end rectangle, which is mostly the same. As the load-bearing capacity of the bridge is getting higher and higher, the size of the Shenjing foundation is growing. The traditional Shenjing foundation is the same, increasing the sizing size, will inevitably ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D27/18E02D15/06E02D23/08E02D25/00
CPCE02D27/18E02D15/06E02D23/08E02D25/00
Inventor 陈鸣罗承斌徐刚冯先导赵东梁万猛张磊吴启和郑海涛陈建荣刘修成韩鹏鹏李嘉成管政霖
Owner CCCC SECOND HARBOR ENG
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