Serial-connection circulating pressure grouting device and pressure grouting method

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...

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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

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