Channel slope toe concrete key wall construction method

A construction method, the technology of concrete, applied in the direction of sheet pile walls, water conservancy projects, artificial waterways, etc.

Active Publication Date: 2020-11-17
CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems in the prior art, the present invention provides a construction method for the concrete tooth wall at the slope foot of the channel; Insufficient when conditions require grading and excavation

Method used

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  • Channel slope toe concrete key wall construction method
  • Channel slope toe concrete key wall construction method
  • Channel slope toe concrete key wall construction method

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Embodiment Construction

[0028] The present invention is described in further detail below by embodiment, and embodiment is only used for illustrating the present invention, does not limit the scope of the present invention.

[0029] see Figure 1-12 The construction method of the concrete tooth wall at the foot of the slope includes the following steps: After the slope and the bottom of the channel are excavated and the positioning device for the steel sheet pile 7 is set, the structural lines on both sides are designed along the concrete tooth wall at the foot of the slope and The special steel sheet pile 7 is driven in through the positioning device, and the side of the multiple connected steel sheet piles 7 close to the structure line of the concrete tooth wall is a vertical plane, and the foot of the slope between the steel sheet piles 7 on both sides is excavated manually or mechanically. The earthwork within the design depth range of the concrete tooth wall, at this time, the steel sheet pile 7...

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Abstract

The invention relates to the field of hydraulic engineering channel engineering construction, in particular to construction of a channel slope toe concrete key wall. The construction method mainly comprises the process steps of arranging a positioning device, driving a steel sheet pile, excavating earthwork, pouring key wall concrete, pulling out the steel sheet pile, treating the inside of a concrete key wall top closing surface, constructing a slope structure and the like. According to the novel channel slope toe concrete key wall construction method, for an excavated or half-filled and half-excavated channel, when the height of the slope toe concrete key wall is larger than 0.8 m and the soil quality is poor so a key wall pit groove needs to be excavated in a sloping mode, the defects that according to an existing construction method, excessive earthwork overbreak exists, overbreak backfill sinks, the stability of the slope structure is affected, and the construction cost is high are overcome, and slope toe concrete key wall structure construction on the premise of no overbreak is achieved.

Description

technical field [0001] The invention relates to the field of water conservancy engineering canal engineering construction, in particular to the construction of a concrete tooth wall at the foot of a canal. Background technique [0002] At present, the construction of the concrete tooth wall at the slope foot of the channel mostly adopts manual or manual-assisted mechanical excavation to excavate the design tooth wall space, and then pours concrete. For this construction method, it is divided into two cases: the first case, when the stability of the soil When the vertical excavation conditions are met, excavate vertically according to the width of the tooth wall, and then pour concrete directly. In the second case, when the soil quality does not meet the vertical excavation conditions, the tooth wall pits are excavated by sloping. The slope must meet the stability requirements of the tooth wall pit during the construction period, and the bottom width must also have a certain ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B5/02E02D5/28E02D5/04E02D5/68E02D5/18E02D15/02
CPCE02B5/02E02D5/04E02D5/18E02D5/285E02D5/68E02D15/02
Inventor 徐更晓
Owner CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD
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