Mechanical cleaning method for loose slag of tunnel inverted arch

Abstract

The invention provides a treatment method for inverted arch loose slag. A cleaning method comprises the following steps: excavating an inverted arch according to design requirements; Then, scraping away loose slag in the area near the center line of the lowest position of the inverted arch through a slag scraping plate, and providing a working face for a loose slag collecting bag; further laying the loose slag collecting bag at the position where the loose slag is scraped; blowing off the inverted arch loose slag to the loose slag collecting bag through a high-pressure air nozzle; recycling the loose slag collecting bag and cleaning the loose slag; finally, using high-pressure air to blow the residual loose slag at the bottom of the loose slag collecting bag to the next working surface; and repeating the steps to complete the cleaning of the loose slag on the working face of the inverted arch. The method has the characteristics of safety, reliability, simplicity and convenience in construction, low cost, high multi-working-face construction efficiency and wide application, and is suitable for inverted arch construction of various mountain tunnels.

Description

technical field [0001] The invention relates to a method for treating virtual slag of an inverted arch, in particular to a method for mechanized cleaning the virtual slag of an inverted arch of a tunnel. Background technique [0002] With the continuous improvement of railway operation speed, the requirements for tunnel construction quality are getting higher and higher, and the virtual slag generated in inverted arch construction directly affects the combination of poured concrete and tunnel. After the inverted arch is excavated, the virtual slag must be cleaned before pouring concrete. [0003] At present, manual cleaning is usually used for tunnel virtual slag cleaning. Due to the uneven working surface excavated by tunnels, manual work is labor-intensive and it is difficult to clean small virtual slag particles. The cleaning time is long and the cost is high. Contents of the invention [0004] Aiming at the problems existing in the prior art that it is difficult to ma...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems existing in the prior art that it is difficult to manually clean up the virtual slag in the inverted arch of the tunnel, which results in high labor intensity and high investment costs, the present invention proposes a mechanized cleaning method, so as to improve the cleaning efficiency and ensure the scraping of the virtual slag purpose of quality