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Double-wall steel hanging box cofferdam steel protection barrel inserting and beating accurate positioning method

A technology of precise positioning and steel casing, applied in construction, sheet pile walls, foundation structure engineering, etc., can solve the problems of difficult precise positioning of the steel cofferdam plane position, high construction cost, difficult construction, etc., and achieve good flexibility and adaptability, meet the allowable deviation requirements, and reduce the effect of construction cost input

Inactive Publication Date: 2020-03-31
CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP
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AI Technical Summary

Problems solved by technology

[0002] The double-wall steel suspension box cofferdam construction technology can be used not only as a construction platform for bored piles but also as a water-retaining structure for cap platform construction. It has been used in more and more projects, especially for deep-water foundation construction. It is difficult to accurately locate the plane position of the steel cofferdam due to the influence of the external environment
The construction is difficult, the efficiency is low, and the positioning accuracy is poor. At the same time, there are also defects of high construction cost and long construction period.

Method used

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  • Double-wall steel hanging box cofferdam steel protection barrel inserting and beating accurate positioning method
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  • Double-wall steel hanging box cofferdam steel protection barrel inserting and beating accurate positioning method

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Embodiment Construction

[0031] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0032] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention Creation and simplification of description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should no...

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Abstract

The invention provides a double-wall steel hanging box cofferdam steel protection barrel inserting and beating accurate positioning method. After lofting, cofferdam splicing is conducted; a keel is installed, and guide rings are arranged; then, cofferdam water immersing is conducted, and an inserting and beating hole position of the cofferdam is adjusted to the designed pile position; a steel protection barrel is lowered for steel protection barrel inserting and beating; and after a first positioning pile is inserted and beaten, an ejector rod is adjusted to finely adjust the plane position ofthe cofferdam, the plane position of the cofferdam reaches higher precision, and successively, all steel protection barrels are inserted and beaten. The double-wall steel hanging box cofferdam steelprotection barrel inserting and beating accurate positioning method has good flexibility and adaptability, the positioning precision is effectively improved, a large amount of positioning time is saved, the construction cost input is reduced, and the construction period can be shortened.

Description

technical field [0001] The invention belongs to the technical field of cofferdam construction, and in particular relates to a precise positioning method for inserting and punching a steel casing of a cofferdam with a double-walled steel hanging box. Background technique [0002] The double-wall steel suspension box cofferdam construction technology can be used not only as a construction platform for bored piles but also as a water-retaining structure for cap platform construction. It has been used in more and more projects, especially for deep-water foundation construction. It is difficult to accurately locate the plane position of the steel cofferdam due to the influence of the external environment. The construction is difficult, the efficiency is low, and the positioning accuracy is poor. At the same time, there are also defects of high construction cost and long construction period. Contents of the invention [0003] In view of this, the present invention aims to overc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D19/04E02D5/68
CPCE02D5/68E02D19/04
Inventor 宋伟俊张敦猛刘涛盖青山杨梦纯蔡维栋胡利平张建军于超池春生孙刚赵健龙文兵
Owner CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP
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