| The stress field and rupture feature in compound model containing typical cracks system and hard-inclusion |
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| 作者姓名： | 崔晓峰 宋锦良 方陆鹏 聂永安 陈宇坤 |
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| 作者单位： | XIAO-FENG CUI; JIN-LIANG SONG; LU-PENG FANG;YONG-AN NIE; YU-KUN CHEN (Tianjin Seismological Bureau，Tianjin 300201，China)(Department of Mechanics，Tianjin University，Tianjin 300072，China) |
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| 摘 要： | IntroductionMet(1995,1996)presentedhard-inclusionearthquakepreparationmodebasingonintraplatemacroseismicityandtempo-spatialevolutioncharacteristicsofprecursoryabnormalfieldssuchasseismicitygapandhighQvalueappearinginawideareaaroundepicenterbeforestrongearthquakes.Somedeepstructure,mechanicalanalysisandrockmechanicaltestconcernedhaveprovidedsupportingevidenceforthemode.Oneofthemostimportantachievementsofmodernseismologyisconfirmingthatearthquakes(especiallyforshallowfocusshocks)causedbyfaultext…
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| 收稿时间： | 3 January 1999 |
| 修稿时间： | 22 June 1999 |
The stress field and rupture feature in compound model containing typical cracks system and hard-inclusion |
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| Xiao-Feng Cui, Jin-Liang Song, Lu-Peng Fang, Yong-An Nie and Yu-Kun Chen.The stress field and rupture feature in compound model containing typical cracks system and hard-inclusion[J].Acta Seismologica Sinica(English Edition),1999,12(6):640-646. |
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| Authors: | Xiao-Feng Cui Jin-Liang Song Lu-Peng Fang Yong-An Nie and Yu-Kun Chen |
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| Institution: | (1) Tianjin Seismological Bureau, 300201 Tianjin, China;(2) Department of Mechanics, Tianjin University, 300072 Tianjin, China |
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| Abstract: | Aiming at the research on mechanical mechanism of hard-inclusion earthquake preparation model, in this paper,experimental and contrast research on stress field and rupture feature of hard-inclusion model has been made respectively, which contained en echelon and composite cracks systems in models, and was loaded under uniaxial compressive stress. The result shows that reverse en echelon and T-shape cracks systems in hard-inclusion are the favorable geological structures to trigger earthquakes. |
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| Keywords: | en echelon cracks system compositecracks system hard-inclusion stress field rupture feature |
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