Device and method for testing slurry diffusion in flowing water

Abstract

The invention discloses a device and a method for testing slurry diffusion in flowing water. The device comprises a flowing water pipe, a grouting pipe, a test pipe and a collecting device, wherein the flowing water pipe is used for forming a uniform flowing waterflow with a certain flow speed; the grouting pipe injects to-be-tested grouting slurry into the test pipe according to set grouting pressure and grouting amount; the test pipe is a transparent acrylic glass pipe, allows observation of diffusion of the slurry in the flowing water and is provided with a flow meter for reading of flow velocity of inlet water and change of a flow field in the grouting process; waste liquid after the test flows into the collecting device. According to the device and method for testing slurry diffusionin the flowing water, concealment of the grouting project is overcome, the diffusion form of the slurry in the flowing water can be displayed visually, and diffusion and plugging laws of the slurry inthe flowing water are studied.

Description

technical field [0001] The invention relates to a slurry diffusion test device and a test method in dynamic water. Background technique [0002] Since the beginning of the new century, with the rapid development of my country's national economy, my country's infrastructure construction has also developed rapidly, and in the construction process of underground projects, there are usually a lot of water gushing and water inrush problems, and The main control measures are pre-grouting before excavation and supplementary grouting after construction. During the grouting process, the setting time of the grout is difficult to control, which cannot meet the requirements of the project for high efficiency and economy, and the effect of water blocking is not good. It is not ideal. At the same time, due to the concealment of the grouting project, it is difficult to study the diffusion law of the grout in the moving water. At present, there are relatively few studies in this area, and the...

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Problems solved by technology

[0002] Since the beginning of the new century, with the rapid development of my country's national economy, my country's infrastructure construction has also developed rapidly, and in the construction process of underground projects, there are usually a lot of water gushing and water inrush problems, and The main control measures are pre-grouting before excavation and supplementary grouting after construction. During the grouting process, the setting time of the grout is difficult to control, which cannot meet the requirements of the project for high efficiency and economy, and the effect of water blocking is not good. Not ideal. At the same time, due to the concealment of the grouting project, it is difficult to study the diffusion law of the grout in the moving water. At present, there are relatively few studies in this area, and the grout diffusion test device is lacking.

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