锁固段损伤过程中的能量转化与分配原理

doi:10.12068/j.issn.1005-3026.2020.07.011

东北大学学报:自然科学版 ›› 2020, Vol. 41 ›› Issue (7): 975-981.DOI: 10.12068/j.issn.1005-3026.2020.07.011

锁固段损伤过程中的能量转化与分配原理

杨百存¹，秦四清^2,3,4，薛雷^2,3,4，陈竑然^2,3,4

(1.东北大学资源与土木工程学院，辽宁沈阳110819； 2.中国科学院地质与地球物理研究所中国科学院页岩气与地质工程重点实验室，北京100029； 3.中国科学院地球科学研究院，北京100029；4.中国科学院大学地球与行星科学学院，北京100049)

收稿日期:2019-12-18 修回日期:2019-12-18 出版日期:2020-07-15 发布日期:2020-07-15
通讯作者: 杨百存
作者简介:杨百存(1991-)，男，辽宁鞍山人，东北大学讲师，博士；秦四清(1964-)，男，河北行唐人，中国科学院地质与地球物理研究所研究员.
基金资助:
国家自然科学基金资助项目(41977249，41831293，41572311)； NSFC-河南联合基金资助项目(U1704243)；中央高校基本科研业务费专项资金资助项目(N2001028)；中国博士后科学基金资助项目(2018M640181).

Energy Conversion and Allocation Principle During the Damage Process of Locked Segment

YANG Bai-cun¹， QIN Si-qing^2,3,4， XUE Lei^2,3,4， CHEN Hong-ran^2,3,4

1. School of Resources & Civil Engineering， Northeastern University， Shenyang 110819， China; 2. Key Laboratory of Shale Gas and Geoengineering， Institute of Geology and Geophysics， Chinese Academy of Sciences， Beijing 100029， China; 3. Innovation Academy for Earth Science， Chinese Academy of Sciences， Beijing 100029， China; 4. College of Earth and Planetary Sciences， University of Chinese Academy of Sciences， Beijing 100049， China.

Received:2019-12-18 Revised:2019-12-18 Online:2020-07-15 Published:2020-07-15
Contact: QIN Si-qing
About author:-
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摘要/Abstract

摘要：

锁固段是主控构造地震产生的地质结构，研究其损伤过程中的能量转化与分配原理，可加深对其损伤行为和能量演化机制的理解.基于能量守恒原理，阐明了受载锁固段内裂纹扩展时储存弹性应变能的转化与分配关系，提出了锁固段破裂事件的地震波辐射能计算公式.据此，在孕震断层多锁固段脆性破裂理论框架下，推导了主震判识的震级准则，论证了锁固段累积Benioff应变比与剪切应变比的等效性，提出了锁固段破裂事件的震源参数计算方法.实例分析表明，该方法可靠.该研究成果在主震判识、震源参数估算与复核等方面具有良好的应用前景.

关键词: 锁固段, 能量转化与分配, 地震波辐射能, 主震判识, 应变比等效性, 震源参数

Abstract:

Locked segment is the geological structure that governs the generation of tectonic earthquakes. As such， studying the energy conversion and allocation principle during the damage process of locked segment can make enhanced insights into its damage behavior and energy evolution mechanism. Based on the energy conservation principle， the relationship between conversion and allocation of elastic strain energy stored in a locked segment during crack propagation was elucidated， and a formula for calculating the radiated seismic energy generated from a cracking event in the locked segment was proposed. Hereby， using the brittle failure theory of multiple locked segments of seismogenic faults， the magnitude criterion for identifying a mainshock was derived， the equivalence between the cumulative Benioff strain ratio and the shear strain ratio was demonstrated， and the methods for calculating the source parameters of cracking event in a locked segment were presented. Case studies show that the methods are reliable. The present results have broad application prospects in identification of mainshock， estimation and verification of source parameters.

Key words: locked segment, energy conversion and allocation, radiated seismic energy, identification of mainshock, equivalence of strain ratio, source parameter

中图分类号:

TD313

杨百存，秦四清，薛雷，陈竑然. 锁固段损伤过程中的能量转化与分配原理[J]. 东北大学学报:自然科学版, 2020, 41(7): 975-981.

YANG Bai-cun， QIN Si-qing， XUE Lei， CHEN Hong-ran. Energy Conversion and Allocation Principle During the Damage Process of Locked Segment[J]. Journal of Northeastern University Natural Science, 2020, 41(7): 975-981.

参考文献

[1]Das S，Aki K.Fault plane with barriers:a versatile earthquake model［J］.Journal of Geophysical Research，1977，82(36):5658-5670.
[2]Aki K.Characterization of barriers on an earthquake fault［J］.Journal of Geophysical Research Solid Earth，1979，84(B11):6140-6148.
[3]Klinger Y，Michel R，King G C P.Evidence for an earthquake barrier model from M_W～7.8 Kokoxili(Tibet) earthquake slip-distribution［J］.Earth and Planetary Science Letters，2006，242(3):354-364.
[4]秦四清，杨百存，吴晓娲，等.中国大陆某些地震区主震事件判识(Ⅱ)［J］.地球物理学进展，2016，31(1):115-142.(Qin Si-qing，Yang Bai-cun，Wu Xiao-wa，et al.The identification of mainshock events for some seismic zones in mainland China(Ⅱ)［J］.Progress in Geophysics，2016，31(1):115-142.)
[5]杨百存，秦四清，薛雷，等.2017年伊拉克M_W7.3地震的类型界定及其震后趋势分析［J］.地球物理学报，2018，61(2):616-624.(Yang Bai-cun，Qin Si-qing，Xue Lei，et al.Identification of seismic type of 2017 Iraq M_W 7.3 earthquake and analysis of its post-quake trend［J］.Chinese Journal of Geophysics，2018，61(2):616-624.)
[6]陈竑然.锁固段脆性破坏特征研究［D］.北京:中国科学院大学，2018.(Chen Hong-ran.Research on the brittle failure characteristics of locked segment［D］.Beijing:University of Chinese Academy of Sciences，2018.)
[7]秦四清，徐锡伟，胡平，等.孕震断层的多锁固段脆性破裂机制与地震预测新方法的探索［J］.地球物理学报，2010，53(4):1001-1014.(Qin Si-qing，Xu Xi-wei，Hu Ping，et al.Brittle failure mechanism of multiple locked patches in a seismogenic fault system and exploration on a new way for earthquake prediction［J］.Chinese Journal of Geophysics，2010，53(4):1001-1014.)
[8]秦四清，杨百存，薛雷，等.欧亚地震带主要地震区主震事件判识［J］.地球物理学进展，2016，31(2):559-573.(Qin Si-qing，Yang Bai-cun，Xue Lei，et al.The identification of mainshock events for main seismic zones in the Eurasian seismic belt［J］.Progress in Geophysics，2016，31(2):559-573.)
[9]秦四清，李培，杨百存，等.环太平洋、大洋海岭与大陆裂谷地震带主要地震区主震事件判识［J］.地球物理学进展，2016，31(2):574-588.(Qin Si-qing，Li Pei，Yang Bai-cun，et al.The identification of mainshock events for main seismic zones in seismic belts of the Circum-Pacific，ocean ridge and continental rift［J］.Progress in Geophysics，31(2):574-588.)
[10]Tsoutrelis C E，Exadaktylos G E.Effect of rock discontinuities on certain rock strength and fracture energy parameters under uniaxial compression［J］.Geotechnical and Geological Engineering，1993，11(2):81-105.
[11]Sato K，Hashida T，Takahashi H，et al.Relationship between fractal dimension of multiple microcracks and fracture energy in rocks［J］.Geothermal Science and Technology，1999，6(1):1-23.
[12]Zhao G Y，Dai B，Dong L J，et al.Energy conversion of rocks in process of unloading confining pressure under different unloading paths［J］.Transactions of Nonferrous Metals Society of China，2015，25(5):1626-1632.
[13]Savage J C，Wood M D.The relation between apparent stress and stress drop［J］.Bulletin of the Seismological Society of America，1971，61(5):1381-1388.
[14]Wyss M，Molnar P.Efficiency，stress drop，apparent stress，effective stress，and frictional stress of Denver，Colorado，earthquakes［J］.Journal of Geophysical Research，1972，77(8):1433-1438.
[15]Kanamori H.The energy release in great earthquakes［J］.Journal of Geophysical Research，1977，82(20):2981-2987.
[16]Vassiliou M S，Kanamori H.The energy release in earthquakes［J］.Bulletin of the Seismological Society of America，1982，72(2):371-387.
[17]Teisseyre R，Majewski E.Earthquake thermodynamics and phase transformations in the earth’s interior［M］.San Diego:Academic Press，2001.
[18]Rivera L，Kanamori H.Representations of the radiated energy in earthquakes［J］.Geophysical Journal International，2005，162(1):148-155.
[19]Griffith A A.The phenomena of rupture and flow in solids［J］.Philosophical Transactions of the Royal Society of London，1920，221:163-198.
[20]杨百存.锁固段加速破裂行为的物理自相似律［D］.北京:中国科学院大学，2019.(Yang Bai-cun.A physical self-similarity law describing the accelerating failure behavior of locked segments［D］.Beijing:University of Chinese Academy of Sciences，2019.)
[21]秦四清，杨百存，薛雷，等.台湾海峡地震区大震预测［J］.地球物理学进展，2015，30(5):2013-2019.(Qin Si-qing，Yang Bai-cun，Xue Lei，et al.Prospective prediction of major earthquakes for the Taiwan Strait seismic zone［J］.Progress in Geophysics，2015，30(5):2013-2019.)
[22]Hardebeck J L，Hauksson E.Static stress drop in the 1994 Northridge，California，aftershock sequence［J］.Bulletin of the Seismological Society of America，1997，87(6):1495-1501.
[23]Kanamori H，Anderson D L.Theoretical basis of some empirical relations in seismology［J］.Bulletin of the Seismological Society of America，1975，65(5):1073-1095.
[24]Shi J，Kim W Y，Richards P G.The corner frequencies and stress drops of intraplate earthquakes in the northeastern United States［J］.Bulletin of the Seismological Society of America，1998，88(2):531-542.
[25]Jin A，Moya C A，Ando M.Simultaneous determination of site responses and source parameters of small earthquakes along the Atotsugawa Fault Zone，Central Japan［J］.Bulletin of the Seismological Society of America，2000，90(6):1430-1445.
[26]Hanks T C，Kanamori H.A moment magnitude scale［J］.Journal of Geophysical Research，1979，84(B5):2348-2350.
[27]Choy G L，Boatwright J L.Global patterns of radiated seismic energy and apparent stress［J］.Journal of Geophysical Research，1995，100(B9):18205-18228.
[28]Mohammadioun B，Serva L.Stress drop，slip type，earthquake magnitude，and seismic hazard［J］.Bulletin of the Seismological Society of America，2001，91(4):694-707.
[29]Ismail I A H，Murrell S A F.The effect of confining pressure on stress-drop in compressive rock fracture［J］.Tectonophysics，1990，175:237-248.
[30]宋治平，张国民，刘杰，等.全球地震目录［M］.北京:地震出版社，2011.(Song Zhi-ping，Zhang Guo-min，Liu Jie，et al.Global earthquake catalog［M］.Beijing:Seismological Press，2011.)
[15]关守平，房少纯.一种新型的区间-粒子群优化算法［J］.东北大学学报(自然科学版)，2012，33(10):1381-1384.(Guan Shou-ping，Fang Shao-chun.A new interval particle swarm optimization algorithm［J］.Journal of Northeastern University(Natural Science)，2012，33(10):1381-1384.)

锁固段损伤过程中的能量转化与分配原理

Energy Conversion and Allocation Principle During the Damage Process of Locked Segment

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