高级搜索
  • 全国中文核心期刊
  • 中国科技核心期刊
  • 美国工程索引（EI）收录期刊
  • Scopus数据库收录期刊

掘进机刀盘滚刀间距对北山花岗岩破岩效率的影响实验研究

龚秋明, 何冠文, 赵晓豹, 马洪素, 李晓昭, 张浩, 苗崇通

龚秋明, 何冠文, 赵晓豹, 马洪素, 李晓昭, 张浩, 苗崇通. 掘进机刀盘滚刀间距对北山花岗岩破岩效率的影响实验研究[J]. 岩土工程学报, 2015, 37(1): 54-60. DOI: 10.11779/CJGE201501005
引用本文: 龚秋明, 何冠文, 赵晓豹, 马洪素, 李晓昭, 张浩, 苗崇通. 掘进机刀盘滚刀间距对北山花岗岩破岩效率的影响实验研究[J]. 岩土工程学报, 2015, 37(1): 54-60. DOI: 10.11779/CJGE201501005
shu
GONG Qiu-ming, HE Guan-wen, ZHAO Xiao-bao, MA Hong-su, LI Xiao-zhao, ZHANG Hao, MIAO Chong-tong. Influence of different cutter spacings on rock fragmentation efficiency of Beishan granite by TBM[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(1): 54-60. DOI: 10.11779/CJGE201501005
Citation: GONG Qiu-ming, HE Guan-wen, ZHAO Xiao-bao, MA Hong-su, LI Xiao-zhao, ZHANG Hao, MIAO Chong-tong. Influence of different cutter spacings on rock fragmentation efficiency of Beishan granite by TBM[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(1): 54-60. DOI: 10.11779/CJGE201501005
shu

掘进机刀盘滚刀间距对北山花岗岩破岩效率的影响实验研究  English Version

  • 1. 北京工业大学城市防灾与减灾教育部重点实验室,北京 100124; 2. 南京大学华东有色地勘局地下空间与地质环境研究所,江苏 南京 210093; 3. 核工业北京地质研究院环境工程研究所,北京 100029

基金项目: 国家自然科学基金项目（51378117,41330641）; 水利水运工程教育部重点实验室暨国家内河航道整治工程技术研究中心开放基金项目（SLK2012B01）
详细信息
    作者简介:

    龚秋明（1969- ）,男,博士,教授,主要研究领域有掘进机、盾构机隧道开挖、岩土工程监测、边坡稳定性分析、岩土工程勘察及评价。E-mail: gongqiuming@bjut.edu.cn。

  • 中图分类号: TU452

Influence of different cutter spacings on rock fragmentation efficiency of Beishan granite by TBM

  • 1. Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing 100124, China; 2. NJU-ECE, Institute for Underground and Geo-environment, Nanjing 210093, China; 3. Division of Environment Engineering, CNNC Beijing Research Institute of Uranium Geology, Beijing 100029, China

摘要

    摘要
  • 摘要: 掘进机（TBM）开挖隧道过程中,其刀盘上滚刀间距设计的合适与否关系着破岩效率的高低。由于岩石非均匀、非连续、各项异性的特性,使用数值模拟方法研究滚刀破岩过程存在局限性。现场掘进实验主要是针对特定的掘进机做出机械运行参数优化,无法研究不同刀间距对破岩的影响。全尺寸滚刀破岩实验可以人为调整刀间距,且实验中采用大体积岩石可以避免尺寸效应的影响,因此受到了广泛的关注。采用北京工业大学自制的机械破岩试验平台,安装17英寸（432 mm）盘形滚刀,选取尺寸为1000 mm×1000 mm×600 mm的北山完整花岗岩试样,进行了5组刀间距的线性切割试验。实验中采集滚刀三向力,分层收集岩片且对其进行称重。对不同刀间距作用下的平均法向力、平均滚动力和比能进行了分析研究。当贯入度较小时,刀间距对平均法向力和平均滚动力的影响都不明显,随着贯入度的增加,刀间距对平均法向力和平均滚动力的影响增加。对于所有的刀间距而言,增加贯入度会产生更多的岩片,但并不一定会提高破岩效率,对于北山花岗岩而言,当刀间距与贯入度的比值为30左右时,比能值最低,此时破岩效率最高。
    Abstract: In tunnel construction by tunnel boring machine (TBM), the excavation efficiency is highly related to cutter spacing. Due to the inhomogeneous, discontinuous and anisotropic characteristics in rocks, there are limitations to study rock fragmentation process by using numerical simulation. The purpose of in-situ penetration tests is to optimize the operational parameters for a specific TBM, thus this kind of tests cannot consider the effect of different cutter spacings on rock breaking process. The full-scale cutting experiment can minimize the size effect by using a large rock sample and the cutter spacing is able to be adjusted during the experiment, therefore the full-scale cutting experiment has been widely used in recent years. In order to study the influence of different cutter spacings on excavation efficiency by TBM cutter, the mechanical rock fragmentation experimental platform of Beijing University of Technology is used to conduct a series of rock cutting tests with five sets of cutter spacings. In these tests, the diameter of the disc cutter with a constant cross section is 432 mm. The size of test granite rock sample is 1000 mm×1000 mm×600 mm, taken from Beishan, Gansu Province of China. During the experiments, the three dimensional forces acting on the rolling cutter are recorded, and the rock chips collected after each cutting pass are weighed respectively. The impact of cutter spacing on excavation efficiency is analyzed by use of the obtained average normal force, average rolling force and specific energy. The results show that when penetration is small, the cutter spacing has no obvious effect on the average normal force and rolling force. However, with the increasing penetration, the cutter spacing has significant impact on both the average normal force and the rolling force. For all of the cutter spacings arranged in the tests, the increase in penetration will produce more rock chips but not always improve the efficiency of rock fragmentation at the same time. For Beishan intact granite, when the ratio of spacing to penetration is around 30, the specific energy reaches the minimum value, which means that the highest rock fragmentation efficiency can be expected under this condition.
    • HTML全文
    • 参考文献(16)
  • [1] ZHAO J. Tunnelling in rock-present technology and future challenges[C]// Proceedings of World Tunnel Congress. Prague, 2007: 22-32.
    [2] GONG Q M. Development of a rock mass characteristics model for TBM penetration rate prediction[D]. Singapore: Nanyang Technological University, 2005: 256.
    [3] ACAROGLU O, OZDEMIR L, ASBURY B. A fuzzy logic model to predict specific energy requirement for TBM performance prediction[J]. Tunnelling and Underground Space Technology, 2008, 23(5): 600-608.
    [4] GONG Q M, JIAO Y Y, ZHAO J. Numerical modeling of the effects of joint spacing on rock fragmentation by TBM cutters[J]. Tunnelling and Underground Spacing Technology, 2006, 21(1): 46-55.
    [5] CHO J W, JEON S, YU S H, et al. Optimum spacing of TBM disc cutters: A numerical simulation using the three-dimensional dynamicfracturing method [J]. Tunnelling and Underground Space Technology, 2010, 25(3): 230-244.
    [6] BRULAND A. Hard rock tunnel boring[D]. Trondheim: Norwegian University of Science and Technology, 2000.
    [7] 龚秋明, 佘祺锐, 侯哲生, 等. 高地应力作用下大理岩岩体的 TBM 掘进试验研究[J]. 岩石力学与工程学报, 2010, 29(12): 2522-2532. (GONG Qiu-ming, SHE Qi-rui, HOU Zhe-sheng, et al. Experimental study of TBM penetration in marble rock mass under high geostress[J]. Chinese Journal of Rock Mechanics and Engineering, 2010, 29(2): 2522-2532. (in Chinese))
    [8] ROXBOROUGH F F, PHILLIPS H R. Rock excavation by disc cutter[J]. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1975, 12(12): 361-366.
    [9] SNOWDOWN R A, RYLEY M D, TEMPORAL J. A study of disc cutting in selected British rocks[J]. Int J Rock Mech Min Sci & Geomech, Abstr, 1982, 19: 107-121.
    [10] ROSTAMI J, OZDEMIR L. A new model for performance perdiction of hard rock TBMs[C]// Proceedings of Rapid Excavation and Tunnelling Conference. Boston, 1993: 793-809.
    [11] CHANG S H, CHOI S W, BAE G J, et al. Performance prediction of TBM disc cutting on granitic rock by the linear cutting test[J]. Tunnelling and Underground Space Technology, 2006, 21(3): 271.
    [12] BALCI C, TUMAC D. Investigation into the effects of different rocks on rock cuttability by a V-type disc cutter[J]. Tunnelling and Underground Space Technology, 2012, 30: 183-193.
    [13] CHO J W, JEON S, JEONG H Y, et al. Evaluation of cutting efficiency during TBM disc cutter excavation within a Korean granitic rock using linear-cutting-machine testing and photogrammetric measurement[J]. Tunnelling and Underground Space Technology, 2013, 35: 37-54.
    [14] TEALE R. The concept of specific energy in rock drilling[J]. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1965, 2(1): 57-73.
    [15] 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 Sciences, 2007, 44(2): 238-246.
    [16] SNOWDOWN R A, RYLEY M D, TEMPORAL J. A study of disc cutting in selected British rocks[J]. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1982, 19(3): 107-121.
    • 相关文章
    • 施引文献
  • 资源附件(0)
计量
  • 文章访问数: 
  • HTML全文浏览量:  0
  • PDF下载量: 
  • 被引次数: 0
出版历程
  • 收稿日期:  2014-02-18
  • 发布日期:  2015-01-19

目录

摘要
HTML全文
    参考文献(16)
    相关文章
    施引文献
    资源附件(0)

    /

    返回文章
    返回
    版权所有 © 2010水利部交通部国家能源局南京水利科学研究院 苏ICP备05007122号-11公安联网备案号：32010602011255
    编辑部地址：南京市虎踞关34号《岩土工程学报》编辑部邮编：210024电话：025-85829534，85829556E-mail: ge@nhri.cn