TY - JOUR
T1 - Definition and evaluation method for compliance of thrust hydraulic system for shield tunneling machine
AU - Shi, Hu
AU - Yang, Hua Yong
AU - Gong, Guo Fang
AU - Hou, Dian Qing
PY - 2013/8
Y1 - 2013/8
N2 - The thrust hydraulic system is likely to suffer from an impact load when the shield tunneling machine is excavating through the unexpected geological stratum. In order to solve this problem, the compliance of a thrust hydraulic system and related evaluating values were proposed. The compliance process of the thrust hydraulic system to sudden load was illustrated. Four influential factors of the system compliance were investigated, including fluid bulk modulus, pressure valve parameters, pipeline length and accumulator volume. The evaluation method of the thrust hydraulic system operating under the specified geological condition was proposed based upon compliance index. A case study was carried out by evaluating the compliance of two typical types of existing thrust hydraulic systems under a given geological condition quantitively. Results showed that the compliance of the system with flow control valve is better than that with pressure reduced valve, and the compliance index is improved from 1.08 to 1.27. The compliance and its evaluation method will be helpful to design a compliance based thrust hydraulic system for shield tunneling machine.
AB - The thrust hydraulic system is likely to suffer from an impact load when the shield tunneling machine is excavating through the unexpected geological stratum. In order to solve this problem, the compliance of a thrust hydraulic system and related evaluating values were proposed. The compliance process of the thrust hydraulic system to sudden load was illustrated. Four influential factors of the system compliance were investigated, including fluid bulk modulus, pressure valve parameters, pipeline length and accumulator volume. The evaluation method of the thrust hydraulic system operating under the specified geological condition was proposed based upon compliance index. A case study was carried out by evaluating the compliance of two typical types of existing thrust hydraulic systems under a given geological condition quantitively. Results showed that the compliance of the system with flow control valve is better than that with pressure reduced valve, and the compliance index is improved from 1.08 to 1.27. The compliance and its evaluation method will be helpful to design a compliance based thrust hydraulic system for shield tunneling machine.
KW - Shield tunneling machine
KW - Thrust hydraulic system, compliance, evaluation
UR - https://www.scopus.com/pages/publications/84884482366
U2 - 10.3785/j.issn.1008-973X.2013.08.018
DO - 10.3785/j.issn.1008-973X.2013.08.018
M3 - 文章
AN - SCOPUS:84884482366
SN - 1008-973X
VL - 47
SP - 1444
EP - 1449
JO - Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science)
JF - Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science)
IS - 8
ER -