Wheel-sticking prevention mortar injecting system and method

Abstract

The invention discloses a wheel-sticking prevention mortar injecting system and method. The wheel-sticking prevention mortar injecting system comprises a concentration sensor and a mortar injection unit; when the concentration sensor detects that the concentration of slurry in a working area is greater than a set threshold value, the mortar injection unit is stared, mortar is injected into the working area by the mortar injection unit, the proportion of non-sticky particles is increased, and the concentration of the slurry in the working area is decreased. Through the construction method for injecting the mortar into the slurry in the working area (such as the groove bottom), the proportion of the non-sticky particles in the slurry at the groove bottom is increased, the concentration of the slurry at the groove bottom is decreased, the inherent characteristics of slurry in a deep sticky formation are changed, it is ensured that the slurry at the groove bottom has the good flowing characteristic, and the efficiency of sucking and discharging of the slurry at the groove bottom by a slag suction opening is improved.

Description

technical field [0001] The invention belongs to the technical field of underground continuous wall construction, and in particular relates to an anti-adhesive wheel mortar injection system and method. Background technique [0002] Diaphragm wall is a new technology widely used and rapidly developed in underground concealed engineering and foundation construction engineering. my country's underground diaphragm wall construction was first applied in Qingdao Danzikou Reservoir in 1958. At that time, the underground diaphragm wall mainly played the role of anti-seepage wall. Later, with the development of technology and the continuous improvement of construction engineering requirements for underground diaphragm walls, underground diaphragm walls have gradually developed to bear vertical loads or composite loads as part of the main force-bearing structure of the project. Double-wheel milling equipment is one of the main equipment for underground diaphragm wall construction at p...

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Problems solved by technology

[0009] In these two patents with application numbers 201320882742.2 and 201710072296.1, when the mud scraper removes mud, the mud at the bottom of the milling wheel groove has been transformed into a viscous paste state, and a large number of sticky particles adhere to the tooth plate of the milling wheel to form mud blocks. The mud clods cannot be effectively removed when using the mud board, and the mud scraper increases the mud adhesion area, and the suspended mud clods stick to each other to form large pieces, which are removed and accumulated at the slag suction port, resulting in a decrease in the slag suction efficiency, and the mud cannot be sucked out in time, making the mud more viscous , mud flow characteristics change

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