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Bottom-connected reinforced concrete open caisson water-washed sinking construction method

A reinforced concrete and construction method technology, applied in caissons, infrastructure engineering, construction, etc., can solve the problems of construction safety hazards, excessive sinking rate, high energy consumption, etc., and achieve no noise and pollution, and stable sinking rate , Operational safety effect

Inactive Publication Date: 2009-12-23
南通宏华建筑安装有限公司
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Problems solved by technology

[0002] The existing construction method of reinforced concrete caissons, the sinking rate will be too fast and sudden sinking, and the investment of large-scale mechanical equipment is required, the energy consumption is high, the cost is high, the construction period is long, and there are construction safety hazards

Method used

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  • Bottom-connected reinforced concrete open caisson water-washed sinking construction method
  • Bottom-connected reinforced concrete open caisson water-washed sinking construction method

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Embodiment Construction

[0040] A construction method for sinking a reinforced concrete caisson with a bottom by water flushing, comprising the following steps:

[0041] (1) Caisson construction:

[0042] (1) Positioning and setting out: According to the design requirements, use theodolite to determine the center line of the caisson and determine the lifting elevation;

[0043] (2) Set up control points: use wooden piles or steel pipes to nail the center piles and sideline piles, and mark the datum horizontal line;

[0044] (3) Excavation of the foundation pit: the depth of excavation is 1m, grading according to 1:0.25, the toe of the slope is 500mm from the outside of the well wall, and a sump is dug every 50m;

[0045] (4) Fabrication of membrane: soil mold is used for caisson blade foot and bottom plate. After the soil tire is built, install and fix the main shaft door, auxiliary well and door frame pressure ring, and smooth it with 1:2 cement mortar on the soil tire Calendering; during construct...

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Abstract

The invention discloses a bottom-connected reinforced concrete open caisson water-washed sinking construction method which comprises the steps of open caisson construction, open caisson sinking and the like. The construction method has the advantages of simple process, stable sinking rate and safe operation.

Description

Technical field: [0001] The invention relates to a water flushing sinking construction method for a reinforced concrete caisson with a bottom. Background technique: [0002] In the existing reinforced concrete caisson construction method, the sinking rate will be too fast and sudden sinking will occur, and the investment of large-scale mechanical equipment is required, the energy consumption is high, the cost is high, the construction period is long, and there are hidden dangers in construction safety. Invention content: [0003] The object of the present invention is to provide a water flushing sinking construction method for a bottom reinforced concrete caisson with simple process, stable sinking rate and safe operation. [0004] Technical solution of the present invention is: [0005] A construction method for sinking a reinforced concrete caisson with a bottom by water flushing is characterized in that it includes the following steps: [0006] (1) Caisson constructio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D23/00E02D23/08
Inventor 张德泉金云王洪波卢桂华李永华
Owner 南通宏华建筑安装有限公司
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