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|Title:||Geomechanical model testing of surface rupture and bridge damage produced by discontinuous reverse faults|
|Keywords:||Discontinuous reverse faults|
Geomechanical model test
Digital speckle correlation method
High speed camera
|Source:||四川大学学报. 工程科学版. Journal of Sichuan University. Engineering science edition, Sept. 2010, v. 42, no. 5, p. 58-67 How to cite?|
|Journal:||四川大学学报. 工程科学版 (Journal of Sichuan University. Engineering science edition)|
Coplanar and stepped buried reverse faults were carried out to study the relationship between faults movement and surface rupture appearing in soil layer using geomechanical model test.Furthermore,the Gaoyuan Bridge damaged during Wenchuan Earthquake was taken as an example to study the effect of fault propagation on bridge foundation by changing the arrangement of the bridge to these two types of faults.Digital speckle correlation method and high speed camera were used to observe and analyze the process of the fault movement.We have studied the effect of fault dip angles and loading rates.The research results indicated that the failure process of discontinues reverse faults can be divided into four stages:elastic stage,fault coalescence stage,sliding stage and failure stage.The width of surface rupture zone,the uplifts of bedrock and sediment layer were statistics,which indicated the width of surface rupture zone and the uplift of the coplanar type were greater than the stepped one.The larger the fault dip angle,the wider the surface rupture zone was resulted.The uplift of bedrock was greater than the uplift of soil layer.The bridge perpendicular to the fault was damaged and no damage to the parallel one.
|Rights:||© 2010 中国学术期刊电子杂志出版社。本内容的使用仅限于教育、科研之目的。|
© 2010 China Academic Journal Electronic Publishing House. It is to be used strictly for educational and research purposes.
|Appears in Collections:||Journal/Magazine Article|
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