Large-scale telescopic tunnel sprayed concrete rebound collecting device

Abstract

The invention discloses a large-scale telescopic tunnel sprayed concrete rebound collecting device. The large-scale telescopic tunnel sprayed concrete rebound collecting device comprises two wall bodies, two guide rods, two hanging rods, a fixing rod, a sliding rod and collecting cloth, wherein the upper surfaces of the two wall bodies are fixedly connected with each other through a tunnel vault; the guide rods are arranged on the surfaces of the two sides of the interior of the wall bodies; the hanging rods are arranged on the lower surfaces of the two guide rods; the two hanging rods are correspondingly and slidably connected to the surfaces of one sides of the fixing rod and the sliding rod; the fixing rod and the sliding rod are slidably connected with each other; and moving wheels are arranged at the four corners of the lower surfaces of the fixing rod and the sliding rod. According to the large-scale telescopic tunnel sprayed concrete rebound collecting device, the collecting cloth is arranged, the collecting cloth is fixed on the hanging rods on the two sides through metal hanging rings and metal hooks during use, a large amount of concrete rebound scattered materials fall onto the collecting cloth when concrete is sprayed, so that the collection of the concrete rebound scattered materials is greatly facilitated.

Description

technical field [0001] The invention belongs to the technical field of tunnel construction, and in particular relates to a large-scale retractable tunnel sprayed concrete rebound collection device. Background technique [0002] Shotcrete is a construction method of spraying and pouring fine stone concrete with a pressure spray gun. It is often used for filling tunnel linings, walls, ceilings and other thin-walled structures or linings of other structures and protective layers of steel structures. [0003] The amount of rebound of shotcrete refers to the amount of aggregate, water (dry spray) or concrete that has been mixed (wet spray) sprayed on the surrounding rock during the process of spraying concrete. What falls is the amount of rebound of the shotcrete. The method to reduce the amount of springback is mainly to adjust the proportion of aggregates, improve the spray angle during construction, and reduce springback in terms of process and material selection. [0004] ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the existing defects and provide a large-scale retractable tunnel sprayed concrete rebound collection device to solve the problems caused by the quality of the concrete material or the level of operation technology in the background technology. Or there will be a large amount of concrete rebound scattered material after construction, usually these concrete rebound scattered materials usually fall to the ground, it is difficult to clean up, and because the sprayed concrete spraying construction is mixed with accelerator, it has been cleaned up Most of the concrete has solidified, which increases the difficulty of cleaning

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