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Abstract: Thrust
system is a key system of shield tunnel boring machine. A thrust
hydraulic system with pressure and flow compound control is designed.
Distributed control of thrust hydraulic cylinders is carried out,
working principle and control method of the thrust hydraulic system are
also expounded. In order to investigate the pressure and flow
characteristics of the thrust hydraulic system, simulation analyses are
carried out with the AMESim simulation tool. At the same time, the
experiments are done in the engineering application. The simulation
results and the practical applications show that the designed thrust
hydraulic system can real-time control the thrust pressure and the
thrust speed, which can also meet the thrust requirements of the shield.
Key words: Shield
tunnel boring machine Thrust hydraulic system Pressure and
flow compound control AMESim simulation
CLC No: TH137
国家杰出青年科学基金(50425518)和国家863高技术研究发展计划(2003AA420120)资助项目
. Received 20050720, received in revised form 20051210
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