Analysis of parameters for cutting reinforced concrete pipe with spherical hob

Yang Li; Minghao Su; Yu Gan; Peng Cheng; Zeng Fu; Zhongkun Bai

doi:10.1117/12.2637349

8 May 2022 Analysis of parameters for cutting reinforced concrete pipe with spherical hob

Yang Li, Minghao Su, Yu Gan, Peng Cheng, Zeng Fu, Zhongkun Bai

Proceedings Volume 12249, 2nd International Conference on Internet of Things and Smart City (IoTSC 2022）; 122491L (2022) https://doi.org/10.1117/12.2637349
Event: 2022 2nd International Conference on Internet of Things and Smart City (IoTSC 2022）, 2022, Xiamen, China

Abstract

In order to analyze the feasibility of the cutter head directly cutting reinforced concrete and the characteristics of parameter changes during the cutting process in the pipeline renewal project. This article uses mechanics and mathematics methods to study the calculation method of cutting resistance and torque starting from the mechanism of the spherical gear cutting of reinforced concrete pipes. This paper designs a cutter head test, systematically studies the changing laws and influencing factors of cutting parameters, and proposes guidance parameters for tunnelling control. The results show that: when the cutterhead cuts the reinforced concrete pipe in full section, the cutterhead thrust, torque and time have an exponential function relationship. By increasing the rotation speed of the cutter head, the thrust of the cutter head gradually decreases, and the torque decreases first and then increases. Combining the cutting parameters of the cutter head and the cutting specific energy, it is determined that the rotation speed of the cutter head is 2.5~3.5r/min and the cutting speed of the cutter head is 18~24mm/min as reasonable cutting parameters.

Citation Download Citation

Yang Li, Minghao Su, Yu Gan, Peng Cheng, Zeng Fu, and Zhongkun Bai "Analysis of parameters for cutting reinforced concrete pipe with spherical hob", Proc. SPIE 12249, 2nd International Conference on Internet of Things and Smart City (IoTSC 2022）, 122491L (8 May 2022); https://doi.org/10.1117/12.2637349

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