关键词: 土压平衡盾构, 密封舱土压, 建模, 机理, 现场数据

Abstract: In order to achieve the automation and intellectualization of shield tunneling process and to ensure the safety of construction, it is necessary to build an effective pressure control model of sealed cabin, which is one of the hottest and the most difficult problems in shield technology. Firstly, the research status of sealed cabin’s pressure control model of shield was described from two aspects of mechanism modeling and field data modeling, and the representative models were analyzed. Then, this paper summarized the problems that existed in model and needed to be solved urgently were summarized, such as modeling without considering the characteristics of time-lag, non-linear and time-varying of earth pressure balance system, which leaded to poor robustness and stability of model. Finally, the feasible methods of solving existing problems were proposed, and the prospect of future research on the control model of earth pressure in sealed cabin was given.

Key words:

Earth pressure balance shield, earth pressure of sealed cabin, modeling, mechanism, the field data