2017年6月上 施工技术 第46卷第11期 CONSTRUCTION TECHNOLOGY 61 D0I:10.7672/5j52017110061 线性和旋转切割方式滚刀破岩试验对比研究* 龚秋明，董贵良，殷丽君，马帅，卢建炜 (北京工业大学城市防灾与减灾教育部重点实验室，北京100124) [摘要]隧道掘进机(TBM)的施工中破岩效率直接影响了工程的进度、造价.室内试验可以较真实地模拟滚刀破岩 的过程，优化TBM设计参数.由于试验设备的限制，此前室内试验均为线性切割，与实际施工的旋转滚刀旋转破岩有 一定差异.基于北京工业大学自主研制的机械破岩试验平台，采用19in(483mm)常截面盘形滚刀，以80mm刀间距、 0.5mm贯人度为间隔，分别对某引水工程花岗岩进行线性切割和旋转切割破岩试验.对比分析了两种切割方式对滚 刀力、比能的影响，发现两种切割方式下法向力、滚动力和比能变化趋势大体相同，只有侧向力存在明显差异. [关键词]隧道工程：贯入度：切割方式：滚刀力 [中图分类号]U455.3*1 [文献标识码]A [文章编号]1002-8498(2017)11-0061-06 Comparison Study on the Rock Linear and Rotating Cutting Test by TBM Cutter GONG Qiuming DONG Guiliang YIN Lijun MA Shuai LU Jianwei Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education Beijing Unirersity of Technology Beijing 100124 China) Abstract:In the tunnel construction by tunnel boring machine (TBM) the excavation efficiency directly influenees the schedule and cost of the construction.Full scale laboratory experiment can almost reflect the rock breaking process really.Due to the limitation of experimental equipment the previous laboratory experiment study only focuses on the linear cutting test which have some difference with the rotating cut in actual construction.The mechanical rock fragmentation experimental platform of Beijing University of Technology was used to explore the difference between rotating and linear cut.In these tests the diameter of the disc cutter with a constant cross section (CCS)is 19 inches.The cutter spacing was set up to 80mm...
线性和旋转切割方式滚刀破岩试验对比研究.pdf
