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Steel pile casing cofferdam and steel pile casing settling and positioning method applying same

A technology of steel casing and double-wall steel cofferdam, which is applied in construction, infrastructure engineering, etc., can solve problems such as the difficulty of lowering the steel casing cofferdam, achieve great promotion value, good social benefits, and ensure the effect of decentralization accuracy

Inactive Publication Date: 2016-05-25
CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention aims to propose a steel casing cofferdam and a method for placing the steel casing in place using the steel casing cofferdam, so as to solve the problems caused by the harsh external environment when the current steel casing cofferdam is lowered. Difficulty in descending steel casing cofferdam

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  • Steel pile casing cofferdam and steel pile casing settling and positioning method applying same
  • Steel pile casing cofferdam and steel pile casing settling and positioning method applying same
  • Steel pile casing cofferdam and steel pile casing settling and positioning method applying same

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Embodiment Construction

[0025] 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.

[0026] 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" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...

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Abstract

The invention provides a steel pile casing settling and positioning method applying a steel pile casing cofferdam. The method comprises the following steps: 1, constructing drilling platform steel pipe piles, and constructing drilling platform supported trestles on the drilling platform steel pipe piles; 2, machining the steel pile casing cofferdam; 3, delivering the steel pile casing cofferdam to the settling position; 4, sliding the drilling platform steel pipe piles downwards along the steel pile casing cofferdam through a floating crane till the seabed surface is reached; 5, mounting a pile casing positioning rack on a drilling platform, hoisting steel pile casings with the floating crane, and vertically descending the steel pile casings to a steel pile casing descending bin along the positioning rack; 6, conducting pouring on the interior of the steel pile casing descending bin. According to the steel pile casing cofferdam and the steel pile casing settling and positioning method applying the same, the cofferdam and the drilling platform steel pipe piles are connected through connecting and extending-and-contracting devices, the cofferdam is positioned and descended through the drilling platform steel pipe piles, then the cofferdam is descended to the seabed surface along the drilling platform steel pipe piles, interference with descending of the cofferdam caused by wave current force is avoided, and cofferdam descending precision is guaranteed.

Description

technical field [0001] The invention belongs to the field of bridge construction over water, and in particular relates to a steel casing cofferdam and a method for sinking and placing the steel casing using the steel casing cofferdam. Background technique [0002] In the construction of bored piles for cross-sea bridges under the environmental conditions of the sea, when the large-diameter and long steel casing is subjected to the force of strong currents and waves, and the covering layer is thin or there is no covering layer and the rock is hard and exposed, the steel casing Casings will not be able to take root, requiring artificial overlays to solve the problem of steel casing stabilization. Put the integral apron cofferdam under the seabed surface of the pier, and then separate the integral cofferdam into small compartments at the steel casing of each pile position. This method of construction solves the problem of rooting and pile formation of steel pipe piles on the ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D19/04
CPCE02D19/04
Inventor 赵多苍袁长春张亚锋李志辉刘长辉王峰曹宇
Owner CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP
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