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Construction method of composite steel sheet pile cofferdam for deep-water cap of steep-slope hard-rock river bed

A technology of steel sheet pile cofferdam and steel sheet pile, which is applied in basic structure engineering, construction and other directions, can solve the problems of strengthening the back cover concrete, affecting the construction progress, and large environmental disturbance, so as to ensure structural safety, reduce construction difficulty, and ensure construction safety. Effect

Active Publication Date: 2016-06-08
BEIJING UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, there are steep hard rocks that need to be removed within the platform cap, and the bottom of the pit cannot be completely reinforced by the back-sealing concrete
[0007] For the construction of deep-water caps located on steep hard rock riverbeds, if measures are not adapted to local conditions and the traditional cofferdam construction mode is not improved, not only will the construction be difficult and the environment will be greatly disturbed, but the construction progress will be directly affected

Method used

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  • Construction method of composite steel sheet pile cofferdam for deep-water cap of steep-slope hard-rock river bed
  • Construction method of composite steel sheet pile cofferdam for deep-water cap of steep-slope hard-rock river bed
  • Construction method of composite steel sheet pile cofferdam for deep-water cap of steep-slope hard-rock river bed

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] Using the above design to construct the composite steel sheet pile cofferdam for the deep-water cap of the steep-slope hard-rock river bed, the specific steps are as follows:

[0026] Step 1: Stakeout and positioning, mark the axis position of the steel sheet pile cofferdam, set up the construction platform on the water, and enter the relevant piling equipment;

[0027] Step 2: If figure 2 and image 3 A single row of steel sheet piles - deep water steel sheet piles 6 are driven into the deep water side, and double rows of steel sheet piles - shallow water outer steel sheet piles 8 and shallow water inner steel sheet piles 9 are arranged on the shallow water side. Row of steel sheets—11 steel sheet piles inside the slope and 10 steel sheet piles outside the slope; the net distance between the two rows of steel sheet piles is the width...

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Abstract

The invention discloses a combined type steel sheet pile cofferdam for a deepwater bearing platform located in an abrupt slope hard rock river bed and a construction method, and belongs to the technical field of building construction. The construction method is improved based on a traditional construction method for the steel sheet pile cofferdam, and aims at overcoming the defects existing in construction of the deepwater bearing platform at present, located in the abrupt slope hard rock river bed, of a bridge, the combined type steel sheet pile cofferdam suitable for constructing the deepwater bearing platform located in the abrupt slope hard rock river bed can be formed by improving the arrangement mode of the combined type steel sheet pile cofferdam in water and the structure of the combined type steel sheet pile cofferdam, and the new construction method, which is simple, efficiency and safe, for the deepwater bearing platform located in the abrupt slope hard rock river bed is provided.

Description

technical field [0001] The invention relates to a construction method of a composite steel sheet pile cofferdam for a deep-water cap located on a steep-slope hard rock bed. The method is based on the traditional construction method of a steel sheet pile cofferdam and is improved. By improving the layout of the steel sheet pile cofferdam in water Combined with the cofferdam structure, a composite steel sheet pile cofferdam can be applied to the construction of deep water caps on steep hard rock riverbeds, making the construction of caps on steep hard rock riverbeds in water simpler, more efficient, safer and more economical. Background technique [0002] At present, most domestic bridges in the water adopt the form of high pile caps, and the underwater construction of high pile caps often requires the arrangement of cofferdams. The construction process mainly includes erecting cofferdams, cofferdam pumping, and caps construction. For the construction of caps located in deep w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D19/04
Inventor 张文学陈壮刘海陆李增银黄荐
Owner BEIJING UNIV OF TECH
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