Floating monitoring system and monitoring method of formwork trolley in self-compacting concrete

Abstract

The present invention provides an upward floating monitoring system of a model board trolley in self-compacting concrete and a monitoring method thereof. The monitoring system comprises anti-floating devices, an axial force measuring meter, a level, a stadia rod and a calibrated scale. The monitoring method comprises positioning the model board trolley, installing the anti-floating devices, installing the axial force measuring meter, then reinforcing and tightening the anti-floating devices, and measuring and recording an initial value; installing the level, fixing the stadia rod with the trolley in a visual line range of the level, and measuring the initial value before pouring the concrete; and reading the number in real time along with rising of the concrete level outside the trolley model board during the concrete pouring process. The influence of different pouring stages of the concrete on upward floating of the trolley model board can be determined in real time, so that corresponding counter measures can be timely adopted in concrete pouring speed and anti-floating device aspects, the risk caused by excessive upward floating quantity or overquick upward floating of the trolley model board is effectively reduced, concrete pouring construction safety is ensured, and pouring quality is improved.

Description

technical field [0001] The invention belongs to underground engineering, in particular to a monitoring system and a monitoring method for the floating of a formwork trolley during the construction of a tunnel cast-in-place self-compacting concrete lining structure. Background technique [0002] With the continuous construction of water conservancy projects in our country, the combined construction of self-compacting concrete and formwork trolley has been widely used. Self-compacting concrete has good fluidity and is similar to fluid during the pouring process. Therefore, according to Archimedes' principle, it will have a buoyancy effect on the trolley formwork immersed in it, and as the concrete liquid level rises, the buoyancy will increase. Gradually increase, and further produce the phenomenon that the trolley formwork appears to float. During the pouring process, if the floating amount of the formwork of the trolley is too large, it will cause quality problems such as g...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a monitoring system and monitoring method for the floating of formwork trolley in self-compacting concrete, to solve the problems of testing method and position in the existing monitoring technology of trolley floating in self-compacting concrete pouring process. Sure, it has a lot of limitations, and it is prone to technical problems that the eccentric force cannot correctly and intuitively reflect the degree of floating of the trolley

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