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Hollow slab cavity plugging method

A hollow slab and cavity technology, which is used in the erection/assembly of bridges, bridge maintenance, bridge reinforcement, etc., can solve the problems of difficulty in dismantling and rebuilding, waste of resources and high cost, and achieve the effect of improving durability and avoiding waste.

Pending Publication Date: 2019-08-23
南京博瑞吉工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is not only a waste of resources, but also high cost and long construction period
Especially if this type of bridge crosses special structures, such as railways, military facilities, etc., it will be more difficult to dismantle and rebuild, with higher cost and longer construction period

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] figure 2 The hollow plate 1 cavity sealing method provided for the embodiment of the present invention, this method can seal or reinforce the hollow plate 1, this method is mainly for the problem of waterproof failure of the old plug, and the situation of resetting the plug , and at the same time, this method specifically specifies whether the traffic on the bridge road is interrupted.

[0064] Such as figure 2 As shown, the cavity sealing method of the hollow plate 1 provided in this embodiment specifically includes the following steps:

[0065] S1: determine the cavity sealing position of the hollow plate 1;

[0066] S11: Determine whether the traffic on the bridge deck can be interrupted, if so, execute step S12, if not, execute step S13;

[0067] S12: Drill a construction hole from the top of the hollow plate 1 from top to bottom at the plugging position of the hollow plate 1;

[0068] S13: Drill construction holes from the bottom of the hollow plate 1 from bo...

Embodiment 2

[0078] Figure 15 The schematic flow chart of the method for sealing the cavity of the hollow slab 1 provided by the embodiment of the present invention. This method can seal or reinforce the hollow slab 1. This method is mainly for the local thinning of the bottom plate and the exposed steel strands of the hollow slab 1. It is carried out on defects or diseases such as cavities. Of course, when the section of the cavity of the hollow plate 1 needs to be filled with fluid material for section reinforcement, the section of the cavity of the hollow panel 1 needs to be filled with fluid material for section reinforcement. When it is strong, the function of the new plug 6 is that of a lateral template to control the pouring position of the fluid perfusion material and limit the flow of the perfusion material. At the same time, the method specifically specifies whether the traffic on the bridge road surface is interrupted.

[0079] Such as Figure 15 As shown, the cavity sealing ...

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Abstract

The invention relates to the technical field of building and bridge structure maintenance and reinforcement, in particular to a hollow slab cavity plugging method. The method comprises the following steps that a hollow slab cavity plugging position is determined, and construction holes are drilled in the hollow slab at the position; a plugging material is poured into the cavity of the hollow slabthrough the construction holes; after the plugging material is filled with a new plug, the construction holes are closed. According to the hollow slab cavity plugging method provided by the invention,hydrops of a bridge floor can be prevented from entering the hollow slab cavity, the durability of the hollow slab is improved, and the waste of dismantling and rebuilding is avoided; the method hasthe advantages that the construction holes are drilled in the hollow slab, so that the appearance and the structure of the hollow slab are not influenced basically, and therefore, the method does notchange the bridge structure.

Description

technical field [0001] The invention relates to the technical field of maintenance and reinforcement of buildings and bridge structures, in particular to a cavity sealing method of a hollow plate. Background technique [0002] Prefabricated ordinary (or prestressed) concrete hollow slabs are widely used in small and medium-span bridges due to the advantages of rapid factory manufacturing and simple process. Some ordinary (or prestressed) concrete hollow slabs in service in my country's early construction had defects during the prefabrication construction period, resulting in defects such as thin bottom slabs, longitudinal cracks in the bottom slab, and steel strands exposed in the cavity. During the operation period, if the waterproof function of the plug plate at the end of the hollow slab fails, or even if the plug plate is not installed, the accumulated water on the bridge will enter the cavity through the end of the hollow slab, resulting in water accumulation in the cav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D22/00
CPCE01D22/00
Inventor 罗文林刘其伟王成明
Owner 南京博瑞吉工程技术有限公司
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