Plugging and leakage-stopping method under flowing water condition

Abstract

The invention discloses a plugging and leakage-stopping method under a flowing water condition, which comprises the following steps of: 1, arranging drill holes at a seepage water source and a water outlet of a crack or an expansion joint; 2, replacing serosity by colored water after the completion of the drill holes to carry out analog plugging; 3, testing water flow velocity, flux and water pressure parameters during the analog, and calculating and determining the relation of the water flow velocity and flux and the relation of the amount of chemical serosity and gelatinization time, so as to ensure that the serosity in the crack or the expansion joint solidifies just when the water flow flows out of the water outlet with the serosity; and 4, grouting; therefore, the plugging work under the flowing water condition is completed through the above steps. The plugging and leakage-stopping method under the flowing water condition method is suitable for plugging the concrete crack or the expansion joint seepage under the opened flowing water condition, particularly for the plugging under the opened quick-seepage or jet-flow flowing water condition, therefore, the security and the durability of the structure are improved, the service life is prolonged, and convenience in construction as well as excellent effectiveness and economic benefit can be achieved.

Description

[0001] technical field [0002] The invention relates to the field of plugging and anti-leakage of concrete cracks or expansion joints, in particular, a kind of plugging suitable for the condition of open flowing water, especially suitable for open fast seepage, water leakage or jet flowing water. blockage. Background technique [0003] According to the geometric shape of leakage, leakage can be divided into point (concentrated) leakage, line (cracks, expansion joints) leakage and surface leakage (scattered leakage); according to the speed of leakage water, it can be divided into slow seepage, Quick seepage, leak and jet. The amount of seepage water is related to the length of the seepage diameter, cross-sectional area of ​​the seepage diameter and seepage pressure. [0004] "Application of Chemical Grouting in Concrete Crack Waterstopping and Leakage Plugging" on page 172 of "China High-tech Enterprise" No. 19, 2009, records a chemical grouting method, which prepares cert...

AI Technical Summary

Problems solved by technology

In particular, the drilling of grouting holes is mentioned. The angle is at an angle of 45 degrees to the crack surface. Multiple grouting holes are arranged staggered around the cracks to ensure that the drilled holes cut the cracks and are not perpendicular to the concrete surface. The problem is that the grouting During the process, it is difficult to discharge the air or water in some parts, which may form a closed cavity, which will affect the sealing effect

Especially for the plugging effect of fracture merged flow and water permeability is not ideal

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