Subway tunnel concrete spraying equipment and process method

Abstract

The invention relates to subway tunnel concrete spraying equipment and a process method. The spraying equipment comprises a stirring module (6), a wet spraying module (5) and a control part, wherein the stirring module (6) and the wet spraying module (5) are integrated, the stirring module (6) is used for adding a mixture to water to be mixed into concrete according to the preset matching ratio, the wet spraying module (5) comprises a concrete conveying pipe (3), a spraying nozzle is arranged at the end part of the concrete conveying pipe (3), and the wet spraying module (5) is used for conveying the stirred concrete to the position of the spraying nozzle (2) through the concrete conveying pipe (3) so as to spray a sprayed operation plane (1) wet. The equipment occupies smaller space and can be adapted to the narrow space in a subway tunnel; the mixture and the water can be stirred into the concrete according to the preset matching ratio, then wet spraying is performed, the concrete matching ratio can be more accurate, the stirring uniformity is improved, and the concrete resilience rate, the dust concentration and the worker's labor intensity are reduced.

Description

technical field [0001] The invention relates to the technical field of subway tunnel construction machinery, in particular to a subway tunnel concrete injection equipment and a process method. Background technique [0002] With the rapid expansion of the urban population, the traffic pressure is becoming more and more severe, and the construction of subways has become an effective means to solve this contradiction. At present, more than 40 large and medium-sized cities are building subways. In the construction of subway tunnels, shotcrete operation is an important step in the support process, which determines the construction quality and project safety. [0003] At present, tidal spraying technology is often used in subway construction. The main reason is that the working space of subway tunnels is narrow, and the application of wet spraying equipment and processes that have been maturely used in mountain tunnels and highway tunnels is restricted. The process principle of t...

AI Technical Summary

Problems solved by technology

[0004] However, the tidal spraying process will lead to a large dust concentration in the cave, which is the main factor causing occupational diseases. Under the background of the country's continuous strengthening of construction environmental protection, personnel safety and health requirements, the tidal spraying process can no longer meet the ne

Images