[1]ZHANG Jianyi,BO Jingshan,LI Ping,et al.Analysis of the Ground Motions adjacent to Dip-slip Type Earthquake Surface Rupture zone[J].Journal of Seismological Research,2019,42(04):465-473.
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Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
42
Number of periods:
2019 04
Page number:
465-473
Column:
Public date:
2019-12-15
- Title:
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Analysis of the Ground Motions adjacent to Dip-slip Type Earthquake Surface Rupture zone
- Author(s):
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ZHANG Jianyi1; BO Jingshan1; 2; LI Ping1; LI Xiaobo1
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(1.Department of Geological Engineering,Institute of Disaster Prevention,Sanhe 065201,Hebei,China)(2.Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,Heilongjiang,China)
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- Keywords:
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active fault; faulting rupture; ground motions; setback distance
- CLC:
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P315.91
- DOI:
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- Abstract:
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Active faults surface ruptures often cause great damage to buildings near the ruptre zone.Therefore,how to avoid active faults in site selection of engineering construction is concerned by engineering geological and geotechnical engineering seismic designers.This article analyzes the Wenchuan,Yushu earthquakes and several seismic fracture site data burst characteristics,and the rich scientific model and mechanism model are constructed and the condition of active faults near the typical geological mechanics based on the consideration of the surface through Bedrock Dislocation and strong vibration effect.Some instructive conclusions are obtained:(1)Under the pulse type ground motion input,the upside has obvious effect on plate.At the same time,the plate outside a certain distance has obvious effect on the "shock" effect.(2)With velocity pulse wave,in the 0.2 g and 0.4 g ground motion input,Amax shall increase significantly within plate on 20 m,10 m footwall increased ranges.(3)More apparent velocity pulse wave,in the 0.2 g ground motion input,Amax increase significantly in plate 40 m range.At 0.4 g ground motion input,Amax only within the scope of the plate on the 30 m significantly increased,while the footwall within 10 m to 20 m.(4)Tto determine the fault setbacks of the reasonable numerical parameter analysis of the application of ground motion,this paper gives some explanation and verify its rationality.