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浙江大学学报(工学版)  2017, Vol. 51 Issue (11): 2175-2181    DOI: 10.3785/j.issn.1008-973X.2017.11.011
土木与交通工程     
爆孕育过程的微震源事件空间分形行为
于洋1, 徐长节1,2, 朱陈1, 徐倩1
1. 华东交通大学 岩土工程基础设施安全与控制重点实验室, 江西 南昌 330013;
2. 浙江大学 城市与滨海岩土工程研究中心, 浙江 杭州 310058
Spatial fractal research of micro-seismic events associated with rockburst hazard
YU Yang1, XU Chang-jie1,2, ZHU Chen1, XU Qian1
1. Jiangxi Key Laboratory of Infrastructure Safety Control in Geotechnical Engineering, East China Jiao Tong University, Nanchang 330013, China;
2. Research Center of Coastal and Urban Geotechnical Engineering, Zhejiang University, Hangzhou 310058, China
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摘要:

为了分析岩爆过程中微破裂事件的自相似特征,提出微震源事件空间分形计算方法.运用该方法,针对锦屏山水电站TBM及钻爆法2种不同开挖方式下,岩爆灾害孕育及发生所获得的微震信息进行研究.结果表明:对于深部岩体隧洞施工过程中发生的岩爆灾害,微震事件的空间分布是具有分形结构的;微震事件空间分形维数具有随着岩爆的孕育过程不断减小,当岩爆发生时达到最小值的特征;TBM开挖方式下的微震事件空间分形维数分布在0.6~1.8的范围内,钻爆法开挖方式下分布在1.2~2.0的范围内;微震事件空间分形维数与微震能量释放之间表现出明显的反比例关系.

Abstract:

A fractal calculation method was proposed in order to analyze the self-similarity of the spatial distribution of micro-seismic events during the development of rockburst hazard. The proposed method was used to analyze the fractal behaviour of micro-seismic events during the preparation and germination process of rockbursts that occurred in deep tunnels of Jinping mountain hydropower station, which was induced by the excavation of the tunnel-boring machine (TBM) and the drill-and-blast method (DBM). The spatial distribution of micro-seismic events during the evolution of rockburst displayed fractal structure. The daily spatial fractal dimensions of micro-seismic events decreased during the preparation and germination process of rockburst, and were reduced to the minimum value as rockburst occurring. The spatial fractal dimensions were 0.6~1.8 by TBM excavation and 1.2~1.0 by DBM excavation. There was a inversely proportional relationship between spatial fractal dimension and micro-seismic energy release.

收稿日期: 2016-11-19 出版日期: 2017-11-13
CLC:  TU45  
基金资助:

国家自然科学基金资助项目(51509092);江西省自然科学基金资助项目(20161BAB216141);岩土力学与工程国家重点实验室开放基金项目(Z015004);江西省交通厅科研项目(2017D0036);江西省教育厅科研项目(150518).

作者简介: 于洋(1982-),男,博士,讲师,从事深部岩体力学方面等研究.ORCID:0000-0002-4409-7970.E-mail:lukeryuyang@163.com
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引用本文:

于洋, 徐长节, 朱陈, 徐倩. 爆孕育过程的微震源事件空间分形行为[J]. 浙江大学学报(工学版), 2017, 51(11): 2175-2181.

YU Yang, XU Chang-jie, ZHU Chen, XU Qian. Spatial fractal research of micro-seismic events associated with rockburst hazard. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2017, 51(11): 2175-2181.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2017.11.011        http://www.zjujournals.com/eng/CN/Y2017/V51/I11/2175

[1] LI C, NORDLUND E. Experimental verification of the Kaiser effect in rocks[J]. Rock Mechanics and Rock Engineering, 1993, 26:333-351.
[2] 冯夏庭,陈炳瑞,张传庆,等.岩爆孕育过程的机制、预警与动态调控[M].北京:科学出版社, 2013:6-20.
[3] 钱七虎.地下工程建设安全面临的挑战与对策[J].岩石力学与工程学报,2012,31(10):1945-1956. QIAN Qi-hu. Challenges faced by underground projects construction safety and countermeasures[J]. Chinese Journal of Rock Mechanics and Engineering, 2012, 31(10):1945-1956.
[4] 李庶林,尹贤刚,郑文达,等.凡口铅锌矿多通道微震监测系统其应用研究[J].岩石力学与工程学报,2005,24(12):2048-2053. LI Shu-lin, YIN Xian-gang, ZHENG Wen-da, et al. Research of multi-channel micro-seismic monitoring system and its application to fankou lead-zing mine[J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(12):2048-2053.
[5] TANG L Z, XIA K W. Seismological method for prediction of areal rockbursts in deep mine with seismic source mechanism and unstable failure theory[J]. Journal of CentralSouthUniversity of Technology, 2010(17):947-953.
[6] LI Shao-jun, Feng Xia-ting. In situ monitoring of rockburst nucleation and evolution in the deeply buried tunnels of Jinping Ⅱ hydropower station[J]. Engineering Geology, 2012(137/138):85-96.
[7] DURRHEIM R J, HAILEA. Violent failure a remnant in a deep South African gold mine[J]. Tectonophysics, 1998, 289(1):105-116.
[8] 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 Bing-rui, FENG Xia-ting, ZENG Xiong-hui, et al. Real-time micro-seismic monitoring and its characteristic analysis during TBM tunneling in deepburied tunnel[J]. Chinese Journal of Rock Mechanics and Engineering, 2011, 30(2):275-283.
[9] MANDELBROTB B, PASSOJA D E, PAULLAY A J. Fractal character of fracture surfaces of metals[J]. Nature, 1984, 308:72-722.
[10] MANDAL P, RODKIN M V. Seismic imaging of the 2001 Bhuj Mw7.7 earthquake source zone:b-value, fractal dimension and seismic velocity tomography studies[J]. Tectonophysics, 2011,512, 1-11.
[11] FENG Xia-ting, YU Yang, FENG Guang-liang, et al. Fractal behaviour of the micro-seismic energy associated with immediate rockbursts in deep, hard rock tunnels[J]. Tunnelling and Underground Space Technology. 2016,58:98-107.
[12] CAI M. Influence of stress path on tunnel excavation response-Numerical tool selection and modeling strategy[J]. Tunnelling and Underground Space Technology incorporating Trenchless Technology Research, 2007(6):618-628.
[13] 严鹏,卢文波,陈明,等.深部岩体开挖方式对损伤区影响的试验研究[J].岩石力学与工程学报, 2011,30(6):1097-1106. YAN Peng, LU Wen-bo, CHEN Ming, et al. In-situ test reseaech on influence of xcavation method in induced damage zone in deep tunnel[J]. Chinese Journal of Rock Mechanics and Engineering, 2011, 30(6):1097-1106.
[14] ZHANG Chuan-qing, FENG Xia-ting, ZHUO Hui, et al. A top pilot tunnel preconditioning method for the prevention of extremely intense rockbursts in deep tunnels excavated by TBMs[J]. Rock Mechanics and Rock Engineering, 2012, 31(3):289-309.
[15] 吴文平,冯夏庭,张传庆,等.深埋硬岩隧洞围岩的破坏模式分类与调控策略[J].岩石力学与工程学报,2011,30(9):1782-1802. WU Wen-ping, FENG Xia-ting, ZHANG Chuan-qing, et al. Classification of failure modes and controlling measures for surrounding rock of deep tunnel in hard rock[J]. Chinese Journal of Rock Mechanics and Engineering, 2011, 30(9):1782-1802.
[16] MENDECKI A J, VAN ASWEGEN G, MOUNTFORT P. A guide to routine seismic monitoring in mines[M]. Cape Town:Creda Communications. 1999:76-89.

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