Please wait a minute...
 首页  期刊介绍 期刊订阅 联系我们 横山亮次奖 百年刊庆
 
最新录用  |  预出版  |  当期目录  |  过刊浏览  |  阅读排行  |  下载排行  |  引用排行  |  横山亮次奖  |  百年刊庆
清华大学学报(自然科学版)  2018, Vol. 58 Issue (5): 461-468    DOI: 10.16511/j.cnki.qhdxxb.2018.26.017
  水利水电工程 本期目录 | 过刊浏览 | 高级检索 |
深埋TBM隧道施工微震监测规律
汤志立1, 刘晓丽1, 李超毅2, 秦鹏翔2, 徐千军1
1. 清华大学 水沙科学与水利水电工程国家重点实验室, 北京 100084;
2. 华能西藏雅鲁藏布江水电开发投资有限公司, 成都 610200
Microseismic characteristic analysis in deep TBM construction tunnels
TANG Zhili1, LIU Xiaoli1, LI Chaoyi2, QIN Pengxiang2, XU Qianjun1
1. State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China;
2. Huaneng Tibet Brahmaputra Hydropower Development Investment Co., Ltd., Chengdu 610200, China
全文: PDF(5278 KB)  
输出: BibTeX | EndNote (RIS)      
摘要 随着各类地下工程向着深部发展,因开挖卸荷导致的围岩失稳问题日益突出。为了对围岩失稳进行预报预警,该文以西藏在建的某公路隧道为研究对象,构建了微震监测系统,总结了深埋隧道隧道掘进机(tunnel boring machine,TBM)开挖过程中微震活动的时空演化规律,揭示了微震事件b值与围岩失稳风险水平之间的关系。结果表明:微震事件数及其能量随TBM日掘进进尺的增大而增多;岩体垮塌发生前,微震事件在空间上聚集,时间上呈增多趋势,微震事件聚集区域与岩体垮塌位置吻合;微震事件b值能够表征隧道围岩稳定性。研究结果验证了微震监测技术用于洞室围岩稳定性评价的可行性,并为微震监测技术在类似工程中的应用提供了参考。
服务
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章
汤志立
刘晓丽
李超毅
秦鹏翔
徐千军
关键词 深埋隧道隧道掘进机(tunnel boring machine,TBM)微震监测b围岩稳定    
Abstract:The increasing depth of underground construction tunnels has led to instabilities of the surrounding rock caused by the excavation unloading is the rock structures. A real-time microseismic monitoring system was built to monitor and evaluate the stability of the rock during excavation foe a tunnel in Tibet, China. The system measured the temporal and spatial evolution of the microseismic activities during tunnel boring machine (TBM) excavation. The results were used to relate the b-values of the microseismic events and the stability risks of the surrounding rock. The results show that the number of microseismic events and the energy released increase with increasing TBM activity. A large number of microseismic events are concentrated in space and time before collapse of the rock mass and the gathering area coincides with the position of the rock mass collapse. The b-value is an important index to evaluate the surrounding rock stability. The results verify the feasibility of microseismic monitoring to evaluate the stability of the surrounding rock and a reference for microseismic monitoring in similar projects.
Key wordsdeep-buried tunnel    tunnel boring machine (TBM)    microseismic monitoring    b-value    surrounding rock stability
收稿日期: 2017-09-25      出版日期: 2018-05-15
ZTFLH:  U456.3+3  
基金资助:“十三五”国家重点研发计划项目(2017YFC0804602);国家自然科学基金重点项目(51339003);水沙科学与水利水电工程国家重点实验室自主科研课题项目(2016-KY-05)
通讯作者: 徐千军,教授,E-mail:qxu@tsinghua.edu.cn     E-mail: qxu@tsinghua.edu.cn
作者简介: 汤志立(1991-),男,博士研究生。
引用本文:   
汤志立, 刘晓丽, 李超毅, 秦鹏翔, 徐千军. 深埋TBM隧道施工微震监测规律[J]. 清华大学学报(自然科学版), 2018, 58(5): 461-468.
TANG Zhili, LIU Xiaoli, LI Chaoyi, QIN Pengxiang, XU Qianjun. Microseismic characteristic analysis in deep TBM construction tunnels. Journal of Tsinghua University(Science and Technology), 2018, 58(5): 461-468.
链接本文:  
http://jst.tsinghuajournals.com/CN/10.16511/j.cnki.qhdxxb.2018.26.017  或          http://jst.tsinghuajournals.com/CN/Y2018/V58/I5/461
  图1 隧道区工程地质剖面图
  图2 微震监测系统硬件组成
  图3 传感器隧道布置图
  表1 不同监测目的的定位精度推荐值 [16]
  图4 系统灵敏度分布图
  图5 定位精度分布图
  图6 微震事件定位误差分布
  图7 TBM 日进尺与每日微震事件数关系
  图8 TBM 日进尺与微震事件每日释放能量关系
  图9 归一化 TBM 掘进参数
  图10 10月2—8日隧道区域微震事件空间演化
  图11 10月9日卡机时现场情况
  图12 微震事件矩震级 频度分布
  图13 不同矩震级的微震事件分布
  表2 不同月份b值、 微震事件数及震级阈值
[1] WANG H L, GE M C. Acoustic emission/microseismic source location analysis for a limestone mine exhibiting high horizontal stresses[J]. International Journal of Rock Mechanics and Mining Sciences, 2008, 45(5):720-728.
[2] 姜福兴. 微震监测技术在矿井岩层破裂监测中的应用[J]. 岩土工程学报, 2002, 24(2):147-149. JIANG F X. Application of microseismic monitoring technology of strata fracturing in underground coal mine[J]. Chinese Journal of Geotechnical Engineering, 2002, 24(2):147-149. (in Chinese)
[3] HIRATA A, KAMEOKA Y, HIRANO T. Safety management based on detection of possible rock bursts by AE monitoring during tunnel excavation[J]. Rock Mechanics and Rock Engineering, 2007, 40(6):563-576.
[4] LU C P, LIU G J, LIU Y, et al. Microseismic multi-parameter characteristics of rockburst hazard induced by hard roof fall and high stress concentration[J]. International Journal of Rock Mechanics and Mining Sciences, 2015, 76:18-32.
[5] POTVIN Y, HUDYMA M R. Seismic monitoring in highly mechanised hardrock mines in Canada and Australia[C]//Proceedings of the 5th International Symposium of Rockburst and Seismicity in Mines. Johannesbury, South Africa:South African Insitute of Mining and Metallurgy, 2001:267-280.
[6] 李铁, 纪洪广. 矿井不明水体突出过程的微震辨识技术[J]. 岩石力学与工程学报, 2010, 29(1):134-139. LI T, JI H G. Identification of water inrush process of unknown water body using microseismic monitoring technique[J]. Chinese Journal of Rock Mechanics and Engineering, 2010, 29(1):134-139. (in Chinese)
[7] XU N W, DAI F, LIANG Z Z, et al. The dynamic evaluation of rock slope stability considering the effects of microseismic damage[J]. Rock Mechanics and Rock Engineering, 2014, 47(2):621-642.
[8] CIPOLLA C L, MAXWELL S C, MACK M G. Engineering guide to the application of microseismic interpretations[C]//SPE Hydraulic Fracturing Technology Conference. The Woodlands, USA:SPE, 2012.
[9] STORK A L, VERDON J P, KENDALL J M. The microseismic response at the in Salah Carbon Capture and Storage (CCS) site[J]. International Journal of Greenhouse Gas Control, 2015, 32:159-171.
[10] YOUNG R P, COLLINS D S, REYES-MONTES J M, et al. Quantification and interpretation of seismicity[J]. International Journal of Rock Mechanics and Mining Sciences, 2004, 41(8):1317-1327.
[11] STORK A L, VERDON J P, KENDALL J M. Assessing the effect of velocity model accuracy on microseismic interpretation at the in Salah Carbon Capture and Storage Site[J]. Energy Procedia, 2014, 63:4385-4393.
[12] 陈炳瑞, 冯夏庭, 曾雄辉, 等. 深埋隧洞TBM掘进微震实时监测与特征分析[J]. 岩石力学与工程学报, 2011, 30(2):275-283. CHEN B R, FENG X T, ZENG X H, et al. Real-time microseismic monitoring and its characteristic analysis during TBM tunneling in deep-buried tunnel[J]. Chinese Journal of Rock Mechanics and Engineering, 2011, 30(2):275-283. (in Chinese)
[13] 张文东, 马天辉, 唐春安, 等. 锦屏二级水电站引水隧洞岩爆特征及微震监测规律研究[J]. 岩石力学与工程学报, 2014, 33(2):339-348. ZHANG W D, MA T H, TANG C A, et al. Research on characteristics of rockburst and rules of microseismic monitoring at diversion tunnels in Jinping Ⅱ hydropower station[J]. Chinese Journal of Rock Mechanics and Engineering, 2014, 33(2):339-348. (in Chinese)
[14] 李庶林, 尹贤刚, 郑文达, 等. 凡口铅锌矿多通道微震监测系统及其应用研究[J]. 岩石力学与工程学报, 2005, 24(12):2048-2053. LI S L, YIN X G, ZHENG W D, et al. Research of multi-channel microseismic monitoring system and its application to Fankou lead-zinc mine[J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(12):2048-2053. (in Chinese)
[15] 张伯虎, 邓建辉, 高明忠, 等. 基于微震监测的水电站地下厂房安全性评价研究[J]. 岩石力学与工程学报, 2012, 31(5):937-944. ZHANG B H, DENG J H, GAO M Z, et al. Safety evaluation research based on microseismic monitoring in underground powerhouse of hydropower station[J]. Chinese Journal of Rock Mechanics and Engineering, 2012, 31(5):937-944. (in Chinese)
[16] MENDECKI A J, LYNCH R A, MALOVICHKO D A. Routine micro-seismic monitoring in mines[C]//Proceedings of Australian Earthquake Engineering Society 2010 Conference. Perth, Australia:Australian Earthquake Engineering Society, 2010.
[17] HAYCOX J R, MORETTI H C, REYES-MONTES J M, et al. Enhanced interpretation of fracturing from acoustic emissions and ultrasonic monitoring at the Aspö Pillar Stability Experiment[C]//ISRM International Symposium-EUROCK 2012. Stockholm, Sweden:International Society for Rock Mechanics and Rock Engineering, 2012.
[18] 徐奴文, 戴峰, 周钟, 等. 岩质边坡微震事件b值特征研究[J]. 岩石力学与工程学报, 2014, 33(S1):3368-3374. XU N W, DAI F, ZHOU Z, et al. Study of characteristics of b-value for microseismic events in high rock slope[J]. Chinese Journal of Rock Mechanics and Engineering, 2014, 33(S1):3368-3374. (in Chinese)
[19] GUTENBERG B, RICHTER C F. Frequency of earthquakes in California[J]. Bulletin of the Seismological Society of America, 1944, 34(4):185-188.
No related articles found!
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
版权所有 © 《清华大学学报(自然科学版)》编辑部
本系统由北京玛格泰克科技发展有限公司设计开发 技术支持:support@magtech.com.cn