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| Experimental study on rock-breaking simulation of double disc cutter of TBM |
| LU Feng1,2, ZHANG Chi1, SUN Jian1, TIAN Jun-xing1, LIU Min3, WU Yu-hou1 |
1. School of Mechanical Engineering, Shenyang Jianzhu University, Shenyang 116028;
2. National and Local Joint Engineering Laboratory of CNC Machining Equipment and Technology on Grade Stone, Shenyang 110168, China;
3. Mining Metallurgical Equipment Branch, Northern Heavy Industries Group Co., Ltd., Shenyang 110168, China |
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Abstract In order to improve the efficiency of cutter rock-breaking, the impact of cutter spacing and loading on the rock-breaking effect of TBM were explored. With the mechanism of rock-breaking disc cutter and the theory of rock crushing, a series of simulation models were established in ABAQUS to research the granite crushing effect under different conditions on double disc cutter. After simulation analysis, the conclusion were as follows:Under some certain geological conditions, the optimal cutter spacing was 80 mm both for continuous and simultaneous load, but the rock breaking effect of continuous load was better than that of simultaneous load. By analyzing the experimental data, it could be obtained that the minimum specific energy of rock breaking was appeared between 80 mm and 90 mm. Thus, the correctness and rationality of the simulation were verified. The research is good to understand the rock-breaking mechanism of double disc cutter and to accelerate the development of domestic TBM design theory and engineering application.
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Received: 26 June 2015
Published: 28 February 2016
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基于TBM双滚刀破岩仿真的实验研究
为了提高滚刀破岩效率,探究滚刀间距及加载方式对全断面硬岩掘进机(Full Face Rock Tunnel Boring Machine,简称TBM)滚刀破岩效果的影响.以滚刀破岩机理、岩石破碎理论为基础,选择某类花岗岩,通过有限元分析软件ABAQUS建立一系列滚刀破岩模型,对TBM刀盘结构设计进行研究,模拟不同刀间距、不同加载方式的双滚刀对破岩效果影响.通过模拟分析得出:在一定地质条件下,滚刀顺次加载和同时加载时的最优刀间距均是80 mm,但是顺次加载的破岩效果要优于同时加载.通过实验数据分析得出破岩比能在刀间距为80~90 mm时最小,从而验证了仿真模拟的正确性与合理性.研究成果对于探究双滚刀破岩机理、加快国内TBM设计理论与工程应用研究有一定帮助.
关键词：
TBM,
破岩机理,
ABAQUS,
刀间距,
顺次加载
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| [1] 夏毅敏,吴元,郭金成,等.TBM边缘滚刀破岩机理的数值研究[J].煤炭学报,2014,39(1):172-178. XIA Yi-min,WU Yuan,GUO Jin-cheng,et al.Numerical simulation of rock-breaking mechanism by gage disc cutter of TBM [J].Journal of China Coal Society,2014,39(1):172-178.[2] 宋克志,袁大军,王梦恕.盘形滚刀与岩石相互作用研究综述[J].铁道工程学报,2005,22(6):66-69. SONG Ke-zhi,YUAN Da-jun,WANG Meng-shu.Study review on the interaction between disk cutter and rock [J].Journal of Railway Engineering Society,2005,22(6):66-69.[3] 魏彬.东欢坨矿硬岩掘进机在上山掘进中的应用[J].技术与市场,2013,20(7):151. WEI Bin.Donghuantuo mine TBM application in the mountains driving [J].Technology and Market,2013,20(7):151.[4] 宋克志,王本福.隧道掘进机盘形滚刀的工作原理分析[J].建筑机械,2007(4):71-74. SONG Ke-zhi,WANG Ben-fu.Operation principle analysis of disc cutter on TBM[J].Construction Machinery,2007(4):71-74.[5] 李辉,王树林,汪加科.TBM盘形滚刀受力分析[J].现代隧道技术,2012,49(3):193-196. LI Hui,WANG Shu-lin,WANG Jia-ke.TBM disc cutter stress analysis[J].Modern Tunnelling Technology,2012,49(3):193-196.[6] 满林涛,李守巨.盘形滚刀破岩过程有限元数值模拟[J].工程建设,2011,43(4):1-5. MAN Lin-tao,LI Shou-ju.Finite element numerical simulation of process of rock breaking by disc cutter[J].Engineering Construction,2011,43(4):1-5.[7] SU O,AKCIN N A.Numerical simulation of rock cutting using the discrete element method [J].International Journal of Rock Mechanics and Mining Science,2011,48(3):434-442.[8] CHO J-W,JEON S K,YU S H,et al.Optimum spacing of TBM disc cutters:a numerical simulation using the three-dimensional dynamic fracturing method [J].Tunnelling and Underground Space Technology,2010,25(3):230-244.[9] 张珂,王腾跃,孙红,等.全断面岩石掘进机盘形滚刀破岩模拟[J].沈阳建筑大学学报(自然科学版),2010,26(6):1209-1213. ZHANG Ke,WANG Teng-yue,SUN Hong,et al.Simulation study on disc cutter of full face rock tunnel boring machine[J].Journal of Shenyang Jianzhu University(Natural Science),2010,26(6):1209-1213.[10] 吴玉厚,张健男,王贺,等.基于ABAQUS的岩石滚刀实验机最优刀间距分析[J].沈阳建筑大学学报(自然科学版),2012,28(5):927-931. WU Yu-hou,ZHANG Jian-nan,WANG He,et al.Optimal analysis for cutter space of linear cutter machine based on ABAQUS[J].Journal of Shenyang Jianzhu University (Natural Science),2012,28(5):927-931.[11] 吴玉厚,孙健,周鹏,等.掘进机滚刀对岩石特性适应性研究[J].沈阳建筑大学学报(自然科学版),2012,28(1):156-161. WU Yu-hou,SUN Jian,ZHOU Peng,et al.Research on the adaptability of TBM disc cutter to the character of rocks[J].Journal of Shenyang Jianzhu University (Natural Science),2012,28(1):156-161.[12] GERTSCH R,GERTSCH L,ROSTAMI J.Disc cutting tests in colorado red granite:implications for TBM performance prediction[J].International Journal of Rock Mechanics and Mining Science,2007,44(2):238-246.[13] 莫振泽,李海波,周青春,等.楔刀作用下岩石微观劣化的试验研究[J].岩土力学,2012,33(5):1333-1340. MO Zhen-ze,LI Hai-bo,ZHOU Qing-chun,et al.Experimental study of rock microscopic deterioration under wedge cutter[J].Rock and Soil Mechanics,2012,33(5):1333-1340.[14] ENTACHER M,LORENZ S,GALLER R.Tunnel boring machine performance prediction with scaled rock cutting tests[J].International Journal of Rock Mechanics and Mining Sciences,2014,6(14):450-459.[15] 张化民.大口径旋挖碎岩机理研究及钻具设计[D].成都:成都理工大学地质灾害防治与地质环境保护国家重点实验室,2013:48-73. ZHANG Hua-min.Large diameter rotary drilling rock fragmentation mechanism research and drilling tool design[D].Chengdu:Chengdu University of Technology,Prevention and Control of Geological Hazards and Geological Environment Protection of State Key Laboratory,2013:48-73.[16] 吴峰.TBM盘形滚刀贯入度与结构参数优化设计研究[D].长沙:中南大学机电工程学院,2012:32-33. WU Feng.TBM disc cutter penetration and structure parameter optimization design research[D].Changsha:Central South University,Mechanical and Electrical Engineering,2012:32-33. |
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