Development of a Real-time Monitoring System of Cutterhead Conditions in Shield Tunnelling
(1 Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing 100124; 2 China Railway Engineering Equipment Group Co., Ltd., Zhengzhou, 450016; 3 Beijing JiuRui Technologies Co., Ltd.,Beijing 100107)
Abstract：
During the shield tunnelling, the cutterhead is in a black box state because the chamber behind the cut? terhead is pressurized. In order to monitor the working state of the disk cutters and cutterhead in real time, a realtime monitoring system of cutterhead conditions in shield tunnelling is developed. The system consists of three subsystems, namely the sensor subsystem, control and data transmission subsystem, algorithm and display subsystem.The sensor subsystem integrates the self-made disk cutter wear sensor, disk cutter rotation speed sensor, temperature sensor, data acquisition module and power supply unit. The integrated sensors are mounted in the disk cutter housings on the cutterhead to monitor the disc cutter wear and rotation speed and cutterhead temperature in real time. The collected data is transmitted to the central end through wire or wireless modes, and then transmitted to the upper computer by wire. The software of the upper computer integrates the shield design parameters, stratum parameters, shield driving parameters and sensor monitoring parameters, by which it can display the parameters monitored by these sensors in real time, comprehensively determine the working condition of the cutterhead and predict the service life of the disc cutters. Through laboratory testing and factory testing, this system is proven to meet the design requirements and can be used for monitoring the working state of shield cutterhead.
GONG Qiuming1 WANG Qinghuan1 WANG Dujuan2 QIU Haifeng3 WU Fan
.Development of a Real-time Monitoring System of Cutterhead Conditions in Shield Tunnelling[J] MODERN TUNNELLING TECHNOLOGY, 2021,V58(2): 41-50
2021, Vol. 58 