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Serial-connection circulating pressure grouting device and pressure grouting method

A series type, grouting pipe technology, which is applied in the direction of earthwork drilling, bolt installation, mining equipment, etc., can solve the problems of grouting pipe blockage, prestressed pipe grouting is not dense, etc., to improve strength, prevent cracks, The effect of ensuring effectiveness

Active Publication Date: 2014-12-10
SHANGHAI NO 7 CONSTR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a serial circulating grouting device and grouting method to solve existing problems in the prior art such as clogging of grouting pipes and incomplete grouting of prestressed pipes

Method used

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  • Serial-connection circulating pressure grouting device and pressure grouting method

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Embodiment Construction

[0018] The central idea of ​​the present invention is to adopt the design idea of ​​prestressed pipe series connection and circulating grouting to ensure the continuous circulation of the grout in the prestressed corrugated pipe, so that the air in the prestressed corrugated pipe can be completely discharged to ensure that the prestressed corrugated pipe is filled There is no air chamber or air chamber in the grout, so that the grout in the prestressed corrugated pipe is fully compacted, which can make the concrete grout better fill the entire prestressed corrugated pipe, and then make the prestressed tendons in the prestressed corrugated pipe and the concrete bond firmly. Integrated to ensure the effectiveness of prestressing, improve the strength, stiffness and bending resistance of concrete components, and prevent premature cracks in concrete components.

[0019] The serial circulating grouting device proposed by the present invention will be further described in detail belo...

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Abstract

The invention discloses a serial-connection circulating pressure grouting device and a pressure grouting method. The device comprises a grout storage barrel, a pressure grouting pump with a pressure gage, a plurality of prestressed pipes, a pressure grouting port valve, a grout outlet valve, an inflow grout thickness detector, an outflow grout thickness detector and pressure grouting pipes. The prestressed corrugated pipes are distributed in a concrete prestressed component in parallel and connected in series to form a prestressed pipe bundle, the grout storage barrel, the pressure grouting pump and the prestressed pipe bundle are sequentially connected in series through the pressure grouting pipes to form a circulating loop, the pressure grouting port valve is arranged on the pressure grouting pipe between the pressure grouting pump and the prestressed pipe bundle, the grout outlet valve is arranged on the pressure grouting pipe between the prestressed pipe bundle and the grout storage barrel, the inflow grout thickness detector is arranged on the pressure grouting pipe between the grout storage barrel and the pressure grouting pump or on the pressure grouting pipe between the pressure grouting pump and the prestressed pipe bundle, the outflow grout thickness detector is arranged on the pressure grouting pipe between the prestressed pipe bundle and the grout storage barrel, compact pressure grouting can be guaranteed through circulating pressure grouting, and grout pipes can be prevented from being blocked.

Description

technical field [0001] The invention belongs to the field of building construction, and in particular relates to a serial circulation grouting device and a grouting method. Background technique [0002] In building construction, the prestressed corrugated pipe is pre-embedded in the concrete prestressed component. After the concrete is poured and the concrete reaches a certain strength, the prestressed corrugated pipe is threaded into the prestressed tendon (such as a steel strand). After the prestressed tendons are stretched and anchored, the prestressed corrugated pipe channel is grouted to fill the gap between the prestressed tendons and the channel, so that the prestressed tendons and the concrete are firmly bonded together, and the strength and stiffness of the concrete components are improved. And bending resistance, to prevent premature cracks in concrete components. [0003] The traditional grouting process often has technical problems such as blockage of the grouti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/12E21D20/02
Inventor 宋炜卿邵俊华季方尤圣乐季韬韩冰
Owner SHANGHAI NO 7 CONSTR
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