通过对盾构试验机掘进过程中推进系统推进压力的精确控制策略研究,认为常用的定值补偿和积分校正控制策略无法精确补偿因比例溢流阀死区特性造成的稳态误差,而位置型PID控制策略可达到对盾构推力的精确控制;采用模糊控制技术与PID控制技术相结合,控制以刀盘转速为主参数的非线性系统,刀盘转速稳态精度得到很大提高,可为盾构实际掘进精确控制提供有效参考。 Through the study of the precise control strategy of propulsion pressure during the tunneling test of TBM, it is considered that the commonly used constant value compensation and integral correction control strategy can not exactly compensate the steady-state error caused by the dead zone characteristic of proportional relief valve, PID control strategy can achieve the precise control of the thrust of the shield; Adopting the fuzzy control technology combined with the PID control technology, the nonlinear system with the cutter head speed as the main parameter is controlled, the steady precision of cutter head speed is greatly improved, which can be The actual control of shield tunneling provides an effective reference.