Secondary lining vault close-fitting monitor and application method of secondary lining vault close-fitting monitor in secondary lining concrete

Abstract

The invention discloses a secondary lining vault close-fitting monitor and an application method of the secondary lining vault close-fitting monitor in secondary lining concrete, and belongs to the field of concrete pouring monitoring. Pressure sensors are arranged on all sections of a tunnel vault, and the pressure sensors are connected with an audible and visual alarm. A plurality of groups of pressure sensors are uniformly distributed among the roof punching openings along the longitudinal direction of the center line of the tunnel, so that the partitioning and regional monitoring of each plate of secondary lining concrete is achieved. When lining concrete is poured to the position of the vault pressure sensor, due to bottom-to-top pouring of the concrete, the outer side of the pressuresensor is tightly attached to the primary supporting surface waterproof plate, pressure is generated on the inner side of the pressure sensor through secondary lining concrete, copper foil adhesive tape in the sensor is connected and conducted, connecting wires are connected for conductive transmission, and relay induction closing display is changed from red to green. When concrete pressure exists at the sensing positions corresponding to all the pressure sensors (namely all the indicating lamps are green), the audible and visual alarm starts to give an audible and visual alarm.

Description

technical field [0001] The invention relates to the field of concrete pouring monitoring, in particular to a two-lined vault close-adhesion monitor and an application method thereof in two-lined concrete. Background technique [0002] At present, composite lining structures are mostly used in road and railway tunnels, and the problem of voids behind the lining is very common. Secondary lining voids will cause quality problems such as insufficient lining thickness and uneven structural stress, which will lead to serious consequences such as lining cracking, water leakage, block loss and even collapse, which will bring harm to the health and safety of the tunnel. How to control it The formation of voids and what preventive measures can be taken will deeply affect the health and safety of expressways and railways across the country; [0003] At present, during the pouring process of the second lining of the tunnel, the roof is not full, which causes the vault of the second lin...

AI Technical Summary

Problems solved by technology

Secondary lining voids will cause quality problems such as insufficient lining thickness and uneven structural stress, which will lead to serious consequences such as lining cracking, water leakage, block loss and even collapse, which will bring harm to the health and safety of the tunnel. How to control it The formation of voids and what preventive measures can be taken will deeply affect the health and safety of highways and railways across the country;

[0003] At present, during the pouring process of the second lining of the tunnel, there is a phenomenon that the crowning is not full, causing the vault of the second lining to be voided, and during the process of the second lining of the tunnel, the master worker cannot accurately determine the completion of the crowning, and can only judge through experience

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