Portable intelligent high-pressure grouting system and grouting method of metamorphic concretes

Abstract

The invention discloses a portable intelligent high-pressure grouting system and a grouting method of metamorphic concretes. The portable intelligent high-pressure grouting system comprises a pulp feeding barrel, a pulp pump and a grouting bar which are connected though pipelines. A grouting head in a tapered shape is arranged on the grouting bar. Circular grooves are formed in the upper portion of the grouting head and internally provided with grouting holes. The tail end of the grouting bar is connected with an electric hammer. The grouting method includes the steps such as grouting and backflowing. The portable intelligent high-pressure grouting system and the grouting method are applied to automatic construction of the metamorphic concretes, construction efficiency is improved, construction workers are fewer, and grouting quantity of the metamorphic concretes is saved.

Description

technical field [0001] The invention relates to metamorphic concrete construction equipment, in particular to a portable metamorphic concrete intelligent high-pressure grouting system and a grouting method. Background technique [0002] Metamorphic concrete is a kind of concrete that is mixed with a certain proportion of mortar and vibrated compactly in the already paved roller compacted concrete. It was first created and used in China in 1986. It solves the problem of poor combination between different types of concrete and normal concrete. Construction interference and other problems have been improved, and the construction technology of rapid dam construction has been improved. Metamorphic concrete is mainly used in parts that cannot be rolled, such as around the formwork, water stops, bank slopes, corridors, and holes. [0003] After more than 20 years of continuous development, the proportion of metamorphic concrete in the total amount of concrete used in dam pouring i...

AI Technical Summary

Problems solved by technology

Some scientific research institutions have carried out related research on metamorphic concrete construction technology and construction machinery, but there are still some problems. At present, metamorphic concrete construction is still in a state of completely manual work

There are mainly three problems in artificial grouting: 1. The amount of grouting is uncontrollable: at present, the artificial grouting method is generally used for surface grouting. This grouting method just pours the grout on the surface of the roller compacted concrete, and then Vibrator vibrate the grouted concrete

The manual grouting method, the grouting amount and the grouting range are also uncontrollable, the construction is random, and the grouting amount is generally high, which not only increases the construction cost, but also is not conducive to the temperature control and crack prevention of the concrete surface; Guarantee: Currently, the pulping process commonly used in the field is rough and cannot make the slurry uniform

The main grouting methods used on site are "groove grouting" and "flat grouting". The uniformity of grout penetration and vibration is poor, which leads to large dispersion of metamorphic concrete construction quality and unavoidable quality defects; 3. Construction Inefficiency: At present, manual work is generally used for construction on site, and there are process intervals. Manual work is low in efficiency and high in cost

[0004] After retrieval, Chinese patent document CN10114881A discloses a portable metamorphic concrete grouting metering device, which is driven by a three-phase AC motor, and the pump inlet is connected to the grouting bucket through a grouting pipe, and a vibrating rod and a grouting bucket are used to The gap between the outer casings can be grouted, but this device cannot fully achieve the purpose of high-pressure uniform grouting

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