Subway tunnel shield synchronous grouting intelligent monitoring system

Abstract

The invention provides a tunnel shield synchronous grouting intelligent monitoring system. A tunnel shield synchronous grouting system is transformed, and a branch pipe flowmeter group, a ball valve group and an emergency switching block device are sequentially arranged between an output port of a grouting pump and a shield tail according to a spatial relationship; a grouting liquid output port, a branch pipe flowmeter, a ball valve, an emergency block changing device and a grouting port of the shield tail are sequentially connected in series to form a slurry conveying path; the branch pipe flowmeter can accurately monitor the slurry amount of the slurry conveying path in real time; and after a pipeline or a pump breaks down, the emergency switching block device is used for switching a slurry conveying path to complete logic judgment so as to achieve positioning of a fault point, and meanwhile it is guaranteed that the system keeps synchronous grouting in real time under the condition that the pump breaks down so as to control field engineering safety. Reliable data support and effective emergency disposal convenience are provided for construction of the subway tunnel shield tunneling machine.

Description

【Technical field】 [0001] The invention relates to the field of intelligent monitoring of tunnel shield synchronous grouting; specifically, the system provides flow pressure monitoring and emergency control functions for a subway tunnel shield synchronous grouting system. For the first time, this system applies the pressure difference measurement technology to the calculation of the cumulative amount of the shield synchronous grouting system. It is a new measurement device designed to effectively adapt to the high-solid particle slurry used in subway tunnel construction; and emergency response are organically combined to deal with the failure of the synchronous grouting system during the construction of the shield, so as to continue to maintain the normal work of the synchronous grouting system of the shield. 【Background technique】 [0002] At present, the calculation method of the cumulative amount of the synchronous grouting system of the subway tunnel shield is to count th...

AI Technical Summary

Problems solved by technology

Usually, a non-faulty grouting pump is temporarily used to take on the work of the synchronous grouting system. It is necessary to stop the propulsion of the shield machine, stop the work of the grouting pump, disassemble the pipeline between the grouting pump and the grouting port, and then reinstall the grouting pump. Layout, it takes a lot of time and affects the construction

And if the shield machine is in a special working condition at this time, for example, there are important buildings above the tunnel under construction, or the shield machine is passing through the upper tunnel at close range, the shield machine cannot be shut down for a long time, Otherwise, it will bring construction risks

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