Shield tunneling machine muddy water tank soil mud pressure sensor replacing device and method for replacing same

Abstract

A shield tunneling machine muddy water tank soil mud pressure sensor replacing device comprises a valve front flange arranged on a shield wall, the middle portion of the valve front flange is providedwith a middle hole, the right end of the valve front flange is provided with a ball valve, the right end of the ball valve is provided with a valve back flange, the valve back flange is internally provided with a sensor fixed inner cylinder which penetrates the internal portion of the ball valve and sealingly slides in the valve core of the ball valve, one end of the sensor fixed inner cylinder is connected with the valve back flange, the other end of the sensor fixed inner cylinder is connected with a soil mud pressure sensor, and the valve back flange can drive the sensor fixed inner cylinder to move back and forth. The problem of replacing a muddy water tank soil mud pressure sensor in a shield inner tank by employing a muddy water balance shield tunneling machine is solved, a fault sensor can be safely and rapidly replaced, the maintenance time is reduced, and the market competition capability of companies at the aspect of large-diameter muddy water shield tunneling machine at home and abroad.

Description

technical field [0001] The invention provides a device for replacing soil and mud pressure sensors in a mud tank of a shield machine and a method for replacing the sensors, belonging to the field of shield tunneling construction. Background technique [0002] At present, the large-diameter slurry shield machines on the market generally use soil pressure sensors to monitor the soil and mud pressure in the slurry tank. The data collected by these sensors is fed back to the control center program as the basis for controlling the operation of the shield machine. Therefore, it must be in good condition at all times. In the working state, the current sensor replacement is to manually enter the mud tank, so the shield machine must be shut down for maintenance. It not only greatly prolongs the excavation construction progress, but also brings potential safety hazards for personnel entering the mud tank. Contents of the invention [0003] The present invention solves the above-men...

AI Technical Summary

Problems solved by technology

[0002] At present, the large-diameter slurry shield machines on the market generally use soil pressure sensors to monitor the soil and mud pressure in the slurry tank. The data collected by these sensors is fed back to the control center program as the basis for controlling the operation of the shield machine. Therefore, it must be in good condition at all times. In the working state, the current sensor replacement is to manually enter the mud tank, so the shield machine must be shut down for maintenance

It not only greatly prolongs the excavation construction progress, but also brings safety hazards to the personnel entering the mud tank

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