岩土力学 ›› 2023, Vol. 44 ›› Issue (4): 1153-1164.doi: 10.16285/j.rsm.2022.0634

• 岩土工程研究 • 上一篇    下一篇

基于新表面理论的TBM破岩效率评价指标

闫长斌1，李高留1，陈健2，李严1，杨延栋3，杨风威4，杨继华4   

  1. 1. 郑州大学 水利与土木工程学院，河南 郑州 450001；2. 中国铁建水下隧道工程实验室，山东 济南 250101； 3. 中铁隧道局集团 盾构及掘进技术国家重点实验室，河南 郑州 450001；4. 黄河勘测规划设计研究院有限公司，河南 郑州 450003
  • 收稿日期:2022-05-01 接受日期:2022-07-13 出版日期:2023-04-18 发布日期:2023-04-29
  • 作者简介:闫长斌，男，1979年生，博士，教授，主要从事岩土与地下工程方面的教学与研究工作。
  • 基金资助:
    国家自然科学基金（No. 41972270，No. U1504523）；水利部黄河流域水治理与水安全重点实验室（筹）研究基金（No. 2022-SYSJJ-06）；盾构及掘进技术国家重点实验室开放课题（No. SKLST–2019–K06）

A novel evaluation index of TBM rock-breaking efficiency based on newly added surfaces theory

YAN Chang-bin1, LI Gao-liu1, CHEN Jian2, LI Yan1, YANG Yan-dong3, YANG Feng-wei4, YANG Ji-hua4   

  1. 1. School of Water Conservancy and Civil Engineering, Zhengzhou University, Zhengzhou, Henan 450001, China; 2. China Railway Construction Underwater Tunnel Engineering Laboratory, Jinan, Shandong 250101, China; 3. State Key Laboratory of Shield Machine and Boring Technology, China Railway Tunnel Group, Zhengzhou, Henan 450001, China; 4. Yellow River Engineering Consulting Co., Ltd., Zhengzhou, Henan 450003, China
  • Received:2022-05-01 Accepted:2022-07-13 Online:2023-04-18 Published:2023-04-29
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (41972270, U1504523), the Research Fund of Key Laboratory of Water Management and Water Security for Yellow River Basin, Ministry of Water Resources (under construction) (2022-SYSJJ-06) and the Open Foundation of State Key Laboratory of Shield Machine and Boring Technology (SKLST-2019-K06).

PDF (Chinese)

140

摘要：

岩碴是岩−机作用的直接产物，也是评价隧道掘进机（TBM）破岩效率和优化TBM掘进参数的有效指标。依托兰州水源地建设工程和龙岩万安溪引水工程，开展不同岩性条件下TBM岩碴筛分试验，得到了岩碴粒径分布规律。基于新表面理论，从滚刀破岩能量转化角度出发，提出了一种新的TBM破岩效率评价指标。基于岩碴粒径分布规律和TBM掘进参数统计，探讨了新表面理论指标与比能、岩碴粗糙度指数之间的关系，指出了新表面理论指标在反映岩碴破碎程度和评价TBM破岩效率方面的优势。对新表面理论指标与TBM掘进推力以及刀间距s与贯入度p的比值进行回归分析，得到了硬岩（围岩等级为Ⅱ级）和软岩（围岩等级为III级）掘进条件下的TBM最优掘进推力和s/p取值区间。研究表明：（1）新表面理论指标符合岩石破碎学原理，可准确评价TBM破岩效率。岩碴越是破碎，新表面理论指标越大，掘进能耗越高，此时TBM破岩效率相对较低。（2）新表面理论指标与比能、岩碴粗糙度指数均具有良好的线性相关关系。岩碴越是破碎，破碎单位体积岩石的能量消耗越大，新表面理论指标越大，对应的粗糙度指数越小。软岩掘进条件下TBM掘进比能低于硬岩，而岩碴破碎程度高于硬岩。（3）新表面理论指标随着TBM掘进推力和s/p的增加先减小后增大，在硬岩和软岩条件下，当TBM最优掘进推力区间和s/p区间分别为7 400～7 700 kN、13.9～14.4和1 000～1 500 kN、8.0～8.5时，新表面理论指标较小，TBM破岩效率较高。

关键词: 隧道掘进机（TBM）, 岩碴, 能量转化, 新表面理论, 粗糙度指数, 比能, 掘进推力, 刀间距与贯入度的比值（s/p）

Abstract: Rock chips are the direct product of rock-machine interaction, and are also often used to evaluate tunnel boring machine (TBM) rock breaking efficiency and optimize TBM tunneling parameters. In-situ sieve tests of rock chips for different lithologies were conducted based on Lanzhou water source construction project and Longyan Wan’anxi water diversion project. The particle size distribution was obtained. From the perspective of energy conversion of disc cutter rock-breaking, a novel evaluation index of TBM rock-breaking efficiency based on newly added surfaces theory was proposed. Based on the particle size distribution and the statistics of TBM tunneling parameters, the correlations among the index of newly added surfaces theory, specific energy and coarseness index were investigated. The advantages of the index of newly added surfaces theory in reflecting the fragmentation degree of rock chips and accurately evaluating the rock-breaking efficiency of TBM were clarified. The regression analysis was carried out to examine the correlation between the newly added surfaces theory index and TBM tunneling thrust, the ratio of disc cutter spacing to penetration (s/p), the optimal tunneling thrust force and s/p value range of TBM under the conditions of hard rock (grade II surrounding rock) and soft rock (grade III surrounding rock) were obtained respectively. The research results showed that the index of newly added surfaces theory not only conformed to the principle of rock fragmentation, but also evaluated the rock-breaking efficiency of TBM accurately. The more broken the rock chips, the larger the index of newly added surfaces theory, and the higher energy consumption of the TBM. At this time, the rock breaking efficiency of TBM is relatively low. The index of newly added surfaces theory has a good linear correlation with specific energy and coarseness index. The more broken the rock chips, the more energy consumption of the TBM. The larger the index of newly added surfaces theory, the smaller the coarseness index. Under the condition of soft rock, the specific energy of TBM tunneling is lower than that of hard rock, however, the fragmentation degree of rock chips is higher than that of hard rock. The index of newly added surfaces theory decreases first and then increases with the rise of tunneling thrust and s/p. Under the conditions of hard rock and soft rock, when the optimal tunneling thrust interval and s/p interval of TBM are 7 400−7 700 kN, 13.9−14.4 and 1 000−1 500 kN, 8.0−8.5 respectively, the index of newly added surfaces theory is small and the rock breaking efficiency of TBM is high.

Key words: tunnel boring machine (TBM), rock chips, energy conversion, newly added surfaces theory, coarseness index, specific energy, tunneling thrust, the ratio of disc cutter spacing to penetration (s/p)

中图分类号: 

  • TV672.1
[1] 孙浩凯, 高阳, 朱光轩, 徐飞, 郑新雨, . 隧道掘进机滚刀破岩动态荷载理论模型及试验研究[J]. 岩土力学, 2023, 44(6): 1657-1670.
[2] 廖九波, 李夕兵, 王少锋, 杜坤. 截割厚度和截线距对镐型截齿破岩的影响研究[J]. 岩土力学, 2023, 44(4): 1009-1021.
[3] 张魁, 杨长, 陈春雷, 彭赐彩, 刘杰, . 激光辅助TBM盘形滚刀压头侵岩缩尺试验研究[J]. 岩土力学, 2022, 43(1): 87-96.
[4] 史林肯, 周辉, 宋明, 卢景景, 张传庆, 路新景, . 深部复合地层TBM开挖扰动模型试验研究[J]. 岩土力学, 2020, 41(6): 1933-1943.
[5] 吴鑫林, 张晓平, 刘泉声, 李伟伟, 黄继敏. TBM岩体可掘性预测及其分级研究[J]. 岩土力学, 2020, 41(5): 1721-1729.
[6] 温森, 周书宇, 盛桂琳, . 复合岩层中滚刀旋转切割破岩效率试验研究[J]. 岩土力学, 2019, 40(7): 2628-2636.
[7] 刘鹤, 刘泉声, 唐旭海, 罗慈友, 万文恺, 陈磊, 潘玉丛, . TBM护盾−围岩相互作用荷载识别方法[J]. 岩土力学, 2019, 40(12): 4946-4954.
[8] 翟淑芳，周小平，毕 靖, . TBM滚刀破岩的广义粒子动力学数值模拟[J]. , 2018, 39(7): 2699-2707.
[9] 刘泉声，赵怡凡，张晓平，孔晓璇. 灰岩隧道掘进机隧道点荷载试验评价岩石强度方法的研究与探讨[J]. , 2018, 39(3): 977-984.
[10] 陈卫忠，马池帅，田洪铭，杨建平,. TBM隧道施工期岩爆预测方法探讨[J]. , 2017, 38(S2): 241-249.
[11] 马池帅，陈卫忠，田洪铭，杨建平,. 基于TBM掘进参数的岩石强度估算方法探讨[J]. , 2017, 38(S2): 295-303.
[12] 黄 兴，刘泉声，彭星新，雷广峰，魏 莱,. 引大济湟工程TBM挤压大变形卡机计算分析与综合防控[J]. , 2017, 38(10): 2962-2972.
[13] 冀佩琦，张晓平，张 旗, . 延脆性变化对隧道掘进机刀具破岩过程及其破坏模式影响的颗粒元模拟分析[J]. , 2016, 37(S2): 724-734.
[14] 刘泉声，潘玉丛，孔晓璇，刘建平，时 凯，崔先泽，黄诗冰,. TBM滚刀贯入过程中泥岩破坏特征试验研究[J]. , 2016, 37(S1): 166-174.
[15] 张倩倩，韩振南，张梦奇，张建广，. 截齿破岩机制及截线间距优化试验研究[J]. , 2016, 37(8): 2172-2179.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] 夏栋舟，何益斌，刘建华. 刚性桩复合地基-上部结构动力相互作用体系抗震性能及影响因素分析[J]. , 2009, 30(11): 3505 -3511 .
[2] 甄文战，孙德安，段 博. 不同应力路径下超固结黏土试样变形局部化分析[J]. , 2011, 32(1): 293 -298 .
[3] 邬 凯，盛 谦，梅松华，李 佳. PSO-LSSVM模型在位移反分析中的应用[J]. , 2009, 30(4): 1109 -1114 .
[4] 刘 镇，周翠英，朱凤贤，张 磊. 软岩饱水软化过程微观结构演化的临界判据[J]. , 2011, 32(3): 661 -666 .
[5] 罗耀武，胡 琦，凌道盛，陈 峥，陈云敏. 桩-土界面特性对砂土地基中抗拔桩承载特性影响的模型试验研究[J]. , 2011, 32(3): 722 -726 .
[6] 孙 冰，曾 晟，丁德馨，綦春明，喻 清. 低应变动测桩及锚杆中波的传播规律差异研究[J]. , 2011, 32(4): 1143 -1148 .
[7] 陈振华 ，李玲玲 ，王立忠 ，许 沿 ，杨 艺. 海堤加筋的分析测试与材料选用[J]. , 2011, 32(6): 1824 -1830 .
[8] 严耿升，张虎元，王晓东，杨 博，李 敏. 干旱区土建筑遗址冻融耐久性研究[J]. , 2011, 32(8): 2267 -2273 .
[9] 张 波 ，李术才 ，张敦福 ，李明田 ，邵冬亮. 简谐波在黏弹性介质中波动传播的应力场研究[J]. , 2011, 32(8): 2429 -2434 .
[10] 郭小红 ，陈飞飞 ，褚以惇 ，乔春江. 富水软弱带公路隧道支护技术研究[J]. , 2011, 32(S2): 449 -454 .
版权所有 © 《岩土力学》编辑部
地址：湖北武汉武昌小洪山中国科学院武汉岩土力学研究所(430071)　邮编：200042　电话：027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
本系统由北京玛格泰克科技发展有限公司设计开发