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Concrete pouring fast construction method

A concrete and fast technology, applied in construction, building maintenance, building construction, etc., can solve the problems of reducing traffic capacity and service level, long construction period, complicated construction procedures, etc., achieving a wide range of engineering application prospects and reliable construction quality. , the effect of shortening the opening time

Active Publication Date: 2012-02-22
SHIJIAZHUANG TIEDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in a large number of engineering constructions, it is inevitable to encounter some projects that need to be quickly constructed and put into use, such as airport runways, bridge deck pavement, etc. At the same time, with the rapid growth of traffic volume and the increasingly heavy vehicle load , the impact force, dynamic load strength and fatigue of highway bridges continue to increase, so that the bridge deck is often in an overloaded working state, resulting in rutting, shifting, cracking, delamination, potholes, etc. on many bridge deck pavement layers along the highway A large number of damage phenomena make the service life of the bridge deck pavement shorter and shorter. In order to restore the road performance of the bridge deck as soon as possible and reduce the impact of damage on transportation, it is necessary to repair the damaged bridge deck, and the current bridge deck maintenance The work is becoming more and more frequent and the project volume is increasing
Bridge deck maintenance, especially large-scale bridge deck maintenance, often causes traffic jams and even induces traffic accidents, which greatly reduces the traffic capacity and service level, making the contradiction between bridge deck maintenance and normal traffic operation increasingly prominent, while the traditional construction process It is complicated, the construction period is long, and the equipment required in the construction is scattered, which leads to the unsmooth connection of the construction process and reduces the construction efficiency. It is difficult to meet the actual requirements of large-scale rapid repair of road or bridge decks.

Method used

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  • Concrete pouring fast construction method
  • Concrete pouring fast construction method
  • Concrete pouring fast construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A bridge deck pavement rapid construction project, the on-site pavement is 6m wide, 15cm thick, and 500m long. 24 pieces of formwork 11 with a size of 100cm×50cm are selected and spliced ​​into a whole plate with a width of 6m and a length of 2m, supporting formwork slides 16 , anchor the formwork slideway 16 on the bridge surface with anchor nails 18, adjust the lifting valve 13 to make the formwork slideway 16 height 15cm, and support the baffle at the end of the movable formwork 11, splice the formwork, and assemble the motor 15 and gears 14, then the whole board is placed on the formwork slideway 16. Concrete mixing plant 32 has a production efficiency of 40m 3 / h, the concrete mobile mixing device 3 is connected to the wet concrete spraying device 2, and then the spray gun 23 is put into the mobile formwork device 1. Put the aggregate into the mobile mixing plant and start producing concrete. The concrete wet spraying machine 22 controls its spraying speed to be ...

Embodiment 2

[0043] The bridge deck pavement of an expressway was seriously damaged, and the old concrete pavement of the bridge deck had to be chiseled out to repair the bridge deck concrete. The design strength of repair concrete for bridge deck pavement is C50, the design thickness is 20cm, and the width of one construction is 7.5m. 10 templates with a size of 150cm×100cm are selected and spliced ​​into a whole board with a width of 7.5m and a length of 2 meters. Support the formwork slideway 16, anchor the formwork slideway 16 on the ground with anchor nails 18, adjust the lift valve 13 to make the formwork slideway 16 height 20cm, and support the baffle at the end of the movable formwork 11. Splice the formwork 11, assemble the motor 15 and the gear 14, and then place the whole plate on the formwork slideway 16. The concrete wet spraying machine 22 controls its spraying speed to be 80m / s, spraying pressure to 0.7Mpa, and the moving speed of the entire slab to be 40m / h. The pouring re...

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Abstract

The invention discloses a concrete pouring fast construction system which comprises a moving formwork device, a concrete wet spraying and pouring device and a concrete moving blending device, wherein the concrete moving blending device is connected with the concrete wet spraying and pouring device through a pipeline, the moving formwork device comprises formworks, each formwork is of a thin plate-like unit body, the unit bodies of the formworks are spliced into a whole plate through bolts, and the whole plate is supported by formwork slideways positioned at the two ends of the whole plate. The concrete pouring fast construction system has the advantages of realizing continuous and uninterrupted concrete fast pouring and realizing fast, continuous and emergency repair construction of bridge deck paving, as well as fast construction and emergency repair fast construction of airfield runways and military emergency works. The concrete pouring fast construction system is simple in structure and simple and convenient to operate, and can be used for not only improving the construction efficiency of large-range wide-amplitude thin plate concrete in a slope or a plane, but also greatly shortening the opening time of a concrete repair region and meeting harsh requirements on the construction speed during the large-range application of fast hardening concrete.

Description

technical field [0001] The invention belongs to the technical field of rapid construction equipment for lifting concrete engineering, and relates to a rapid construction system for pouring thin-slab concrete in a large range and width on a slope or plane, and more specifically to rapid construction and repair projects of bridge deck pavement and airport runways, etc. And the concrete pouring rapid construction system in the emergency repair project of military emergency slope or plane large-scale and wide thin-slab quick-setting concrete. Background technique [0002] With the development of our country's national economy, a large number of projects in the transportation field are developing rapidly. The construction period of these projects is particularly important. Whoever can shorten the construction period will be able to seize the opportunity. In addition, in a large number of engineering constructions, it is inevitable to encounter some projects that need to be quickl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/02E01D21/00E01C7/14E01C19/50E01C19/45E01C23/09E04G21/04E04G23/02
CPCY02A30/60
Inventor 王伟沈英明王晶曹立辉孙大奇
Owner SHIJIAZHUANG TIEDAO UNIV
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