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One-time pouring and forming construction device and method for a large-section special-shaped structure

A construction device and construction method technology, which is applied in infrastructure engineering, construction, sea area engineering, etc., can solve the problems of unusable trolleys, lining, and gradual changes in vertical height of space, so as to achieve great promotion and application value, ensure construction quality, The effect of improving flatness

Active Publication Date: 2021-01-05
CHINA THREE GORGES PROJECTS DEV CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the deficiencies in the existing concrete construction of the dragon tail of the flood discharge tunnel, the present invention provides a construction method of one-time pouring and forming of a large-section special-shaped structure. The vertical height changes gradually, and the trolley lining problem cannot be used

Method used

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  • One-time pouring and forming construction device and method for a large-section special-shaped structure
  • One-time pouring and forming construction device and method for a large-section special-shaped structure

Examples

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Embodiment 1

[0030] Such as Figure 1-2 , a large-section special-shaped structure one-time pouring molding construction device, which includes a trolley track 1 laid at the position of the aerated sill special-shaped structure 5, and a side wall lining platform for side wall lining pouring is supported on the trolley track 1 Car 2, on the top of the side wall lining trolley 2, there is a top arch lining trolley 3 for vault pouring, at the location of the aerated sill special-shaped structure 5 and at the bottom of the side wall lining trolley 2 panel and the floor lining line 6 Uncovered special-shaped side walls are sealed with special-shaped steel formwork 4. By using the above-mentioned construction device, the one-time pouring of the special-shaped structure 5 of the aeration sill of the flood discharge tunnel can be realized, thereby ensuring that the levelness of the concrete pouring at the Longluowei aeration sill meets the design technical requirements, and effectively avoiding th...

Embodiment 2

[0035] Adopt the construction method of one-time pouring molding construction device of described large-section special-shaped structure of any one, it comprises the following steps:

[0036] Step 1, before the reinforcement is bundled, first offset the elevation A according to the top arch lining line 7, and the elevation area from the top arch lining line 7 to A is the lining area of ​​the top arch lining trolley 3;

[0037] Step 2, offset the elevation B along the bottom edge of the lining area of ​​the top arch lining trolley 3, and the elevation area from the top arch lining trolley 3 to B is the lining area of ​​the side wall lining trolley 2;

[0038] Step 3, offset the elevation C along the bottom edge of the lining area of ​​the side wall lining trolley 2, and the elevation area from the side wall lining trolley 2 to C is the area affected by the trolley traveling mechanism;

[0039] Step 4: Pour C40 concrete from the area affected by the traveling mechanism of the tr...

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PUM

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Abstract

The invention provides a one-time pouring forming construction device and method for a large-section special-shaped structure. The one-time pouring forming construction device comprises a trolley track laid at a position of an aerated special-shaped structure; the trolley track supports a side wall lining trolley for side wall lining pouring, a top arch lining trolley for top arch pouring is arranged at the top of the side wall lining trolley. A special-shaped steel moulding plate blocks the position at which the aerator special-shaped structure is located and the position of a special-shapedside wall which is not coated with the bottom of a panel of the side wall lining trolley and a bottom lining line. The construction method effectively solves the problem that the trolley cannot be used for lining due to gradual change of the vertical height of the space caused by the inconsistency between the gradient of the top arch of a large cavern and the gradient of the lining of a bottom plate. The construction method effectively guarantees the construction quality of concrete of the side wall and the top arch of the large-section special-shaped structure, and improves the impact resistance and wear resistance performance of a concrete flow-passing surface.

Description

technical field [0001] The invention relates to cavern lining construction, in particular to a one-time pouring and forming construction device and method for a large-section special-shaped structure. Background technique [0002] The flood discharge tunnel project of Baihetan Hydropower Station mainly includes 3 flood discharge tunnels, and each flood discharge tunnel is composed of the entrance gradient section, the upper flat section and the Longluowei section. Longluowei is composed of wauchi curve section, slope section and anti-arc section. The Woch curve method is Z=X2 / 500+0.015X, the slope section is the connection transition section between the Worg curve and the inverse arc, the slope slope of 1# and 2# spillway tunnel is 1:4, and the slope slope of 3# spillway tunnel is 1:3.72, the anti-arc section is located downstream of the slope section, and the anti-arc radius is 300m. [0003] Three aeration sills are arranged at the tail of each dragon, and the positions ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B9/06E02B8/06E02D15/02
CPCE02B8/06E02B9/06E02D15/02E02D2250/0007E02D2250/0023E02D2300/002Y02E10/20
Inventor 罗刚王孝海吴世斌陈敏黄纪村张继屯刘凡沈杰刘喆彭培龙张相明
Owner CHINA THREE GORGES PROJECTS DEV CO LTD