To master the running state of the main bearing in
real time, a case study is conducted on the Zhoushan subsea highway tunnel
project in Zhejiang, China, and a set of online monitoring system for the
homemade main bearing of largediameter slurry shield
is designed. Based on the distributed control system, the professional sensors
are used to collect the parameters such as vibration, temperature, and gear oil
pollution of the main bearing of the shield, and the data collected are
analyzed and processed. The results reveal the following: (1) The system can
avoid the interference of largediameter slurry shield
tunneling and monitor the running state of the main bearing stably in real
time. (2) During shortterm and continuous shield
tunneling, the vibration data of the main bearing and the state parameters at
each time are analyzed to realize the comprehensive test evaluation of the
vibration and oil characteristics of the main bearing. (3) Through the online monitoring abnormal data comparison mechanism, the
discrimination and early warning of main bearing wear and impurity pollution in
gear oil cavity are implemented to provide a direct basis for judging the
status of main bearings.
ZHANG Chanjuan, LIU Ruiqing, LI Lei
. Design and Application of Online
Monitoring System for Homemade Main Bearing of LargeDiameter Slurry Shield: a Case Study of Zhoushan Subsea Highway Tunnel Project in Zhejiang, China[J]. Tunnel Construction, 2022
, 42(S1)
: 526
-535
.
DOI: 10.3973/j.issn.2096-4498.2022.S1.062
