A method of measuring and calculating the amount of slag produced by mud shield machine by using density meter

Abstract

The invention provides a method of calculating the amount of slag discharged by a slurry shield machine using density meters. The method comprises the steps that firstly a slurry feed density meter and a slurry discharge density meter are additionally arranged above the middle segments of a slurry feed pipeline and a slurry discharge pipeline in the second layer of an equipment bridge separately, the data signal lines of the slurry feed density meter and the slurry discharge density meter are connected with a control system of the slurry shield machine, and the slurry feed density meter and the slurry discharge density meter can display the slurry feed density value and the slurry discharge density value through the control system in real time. In the process of one-ring tunneling, the cumulative total feed amount J m<3> can be displayed automatically in the control system through a slurry feed flow meter, and the cumulative total discharge amount P m<3> slurry can be displayed automatically in the control system through a slurry discharge flow meter, the average slurry feed density value M (average feed) kg / m<3> can be converted automatically in the control system through the slurry feed density meter, the average slurry discharge density value M (average discharge) kg / m<3> can be converted automatically in the control system through the slurry discharge density meter, and finally, the actual slag amount G' of one-ring is obtained automatically through the control system to determine whether the tunneling requirement is satisfied.

Description

technical field [0001] The invention belongs to the technical field of shield machine construction, in particular to a method for measuring and calculating the slag output of a muddy water shield machine by using a density meter. Background technique [0002] Slurry shield machines are used more and more in tunnel construction. However, the real-time slag output of the slurry shield machine has not been accurately measured. Therefore, the operators of the slurry shield machine cannot make accurate judgments on the excavation situation, and most of them can only be manually measured and separated. Calculations are unscientific, time-consuming and laborious, and cannot reflect the authenticity of data in real time. [0003] Up to now, there are no relevant reports on the method of using density meter to measure and calculate the slag output of slurry shield machine. Contents of the invention [0004] In order to measure the slag output of the mud shield machine, the presen...

AI Technical Summary

Problems solved by technology

However, the real-time slag output of the slurry shield machine has not been accurately measured. Therefore, the operators of the slurry shield machine cannot make accurate judgments on the excavation situation, and most of them can only be manually measured and separated. The calculation is unscientific, time-consuming and laborious, and cannot reflect the authenticity of the data in real time

[0003] So far, there have been no relevant reports on the method of using a density meter to measure and calculate the slag output of the slurry shield machine