摘要
为了准确配置盾构关键参数和把握滚刀换刀时机,文章通过对滚刀破岩力CSM模型进行数学推导,建立了更为直观的滚刀破岩力预测模型;通过对滚刀磨损机制的分析,建立了基于磨粒磨损机制的滚刀磨损速率预测模型。由于对模型的推导过程做了近似计算,且某些参数在滚刀使用过程中变化较大,因此对预测模型进行了误差分析,并且通过现场实测数据对两个预测模型的正确性进行了验证。文章建立的盾构滚刀破岩力与磨损速率预测模型可为盾构关键参数的配置和滚刀寿命的预测提供参考。
In order to ensure accurate key parameter configuration of a shield machine and seize the opportunity for disc cutter replacement, a visualized breaking force forecast model for disc cutters was established through a mathematical deduction by CSM model and a wear rate forecast model of the disc cutter was set up by analyzing the disc cutter wear mechanism based on the abrasive wear mechanism. Since there are some approximate calculations in the process of model derivation and great changes to parameters in the operation of a disc cutter, an error analysis of the derived models was carried out. Finally, the correctness of the two models was determined through field mea- sured data.
出处
《现代隧道技术》
EI
CSCD
北大核心
2016年第5期131-136,144,共7页
Modern Tunnelling Technology
基金
国家973计划(2014CB046906)
关键词
盾构
滚刀
破岩力
磨损速率
预测模型
Shield machine
Disc cutter
Breaking force
Wear rate
Forecast model
