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A Method for Cofferdam Flotation Positioning

A cofferdam and post-positioning technology, applied in construction, infrastructure engineering, etc., can solve the problems of complex and complicated ways of anchoring and hanging cables

Active Publication Date: 2018-09-11
CHINA MCC5 GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a cofferdam floating positioning method to solve the complex and numerous problems of anchoring and cable hanging methods when the cofferdam is in place in the prior art, and to provide a unified cable hanging positioning method to improve engineering quality. purpose of efficiency

Method used

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  • A Method for Cofferdam Flotation Positioning
  • A Method for Cofferdam Flotation Positioning

Examples

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Embodiment 1

[0028] like figure 1 and figure 2 A method for cofferdam floating positioning shown, wherein figure 2 The direction of the middle arrow indicates the direction of water flow; use the front and rear positioning boats for positioning, including the following steps: (a) Before the cofferdam 1 is launched into the water, put four front pull cables 7 and four rear pull cables on the cofferdam 1 in advance. Cable 8, on the left and right sides of the cofferdam 1 along the water flow direction, respectively bring 16 side anchor anchor ropes 9; (b) three tugboats in place in advance: numbered tugboat one 2, tugboat two 3, tugboat three 4; cofferdam 1 Launch the water upstream of the pier, and after the cofferdam 1 is launched stably, the tugboat 1 2 and tugboat 2 3 are braided and tied respectively to the left and right sides of the cofferdam 1 along the water flow direction, and the tugboat 3 4 is directly on the upstream direction of the cofferdam, Three tugboats float the coffe...

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Abstract

The invention discloses a cofferdam floating transportation positioning method. Four front pull cabled, four back pull cabled and N side anchor ropes are reserved on a cofferdam in advance before the cofferdam enters the water, the left side and the right side are each provided with N / 2 side anchor ropes in the water flow direction, the side anchor ropes can be directly transferred to a positioning ship and an anchor drop ship for anchor dropping from the cofferdam in the follow-up anchor dropping and rope tying process, the method of cable hanging in the construction site is avoided, and therefore compared with the prior art, the working period is saved, and the construction efficiency is improved; in addition, the provided positioning method is simple in step, high in maneuverability and suitable for positioning of various cofferdams; the problem that in the prior art, when the cofferdam is in place, the anchor dropping and rope tying manners are complex and many is solved, the cable hanging positioning method is unified, the anchor dropping and cable hanging positioning method is sequenced and simplified, the construction efficiency of engineering is greatly improved, the working period is better saved, the construction cost is reduced, and the remarkable economical benefits are achieved.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to a cofferdam floating positioning method. Background technique [0002] Cofferdam refers to the temporary enclosure structure built for the construction of permanent water conservancy facilities in the construction of water conservancy projects. Its function is to prevent water and soil from entering the construction site of the building, so as to drain water in the cofferdam, excavate the foundation pit, and build the building. Generally, it is mainly used in hydraulic construction. Except as a part of formal buildings, cofferdams are generally removed after use. Cofferdams can be divided into earth-rock cofferdams, grass-soil cofferdams, wooden sheet pile cofferdams, wooden cage cofferdams, steel sheet pile cofferdams, locking pipe pile cofferdams, reinforced concrete or prestressed concrete sheet pile cofferdams, Concrete cofferdams, etc. The floating and positioning of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D19/04
CPCE02D19/04
Inventor 罗建勋杨根明罗利
Owner CHINA MCC5 GROUP CORP
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