| 3-D physical model in strong ground motion numerical simulation： A case study of Kunming basin |
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| 引用本文： | 张冬丽,徐锡伟,赵伯明,陈桂华,解廷伟.3-D physical model in strong ground motion numerical simulation： A case study of Kunming basin[J].地震学报(英文版),2007,20(2):194-205. |
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| 作者姓名： | 张冬丽 徐锡伟 赵伯明 陈桂华 解廷伟 |
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| 作者单位： | Institute of Geology China Earthquake Administration，Institute of Geology，China Earthquake Administration，Beijing Jiaotong University，Institute of Geology，China Earthquake Administration，Beijing Jiaotong University，Beijing 100029，China Lanzhou Base of Institute of Earthquake Science，China Earthquake Administration Lanzhou 730000，China，Beijing 100029，China，Beijing 100044，China，Beijing 100029，China，Beijing 100044，China |
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| 基金项目： | Urban Active Fault Detection Project sponsored by the National Development and
Reform Commission of China(2004-1138)，National Natural Science Foundation of China(40604005)，Joint Seismological Science Foundation of China(A07027)，Key Project during the 10th Five-year Plan Period from Earthquake Administration of China(J105B-16). |
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| 摘 要： | Seismic hazard assessment based on urban active faults can provide scientific bases for city planning and projectconstruction,while numerical simulation of strong ground motion is an important method for seismic hazard pre-diction and assessment.A 3-D physical model in conformity with real strata configuration of(mainly)the Quater-nary is a prerequisite to ensure the reliability of the simulation results.In this paper,we give a detailed account ofthe technical scheme and process for creating a 3-D physical model in Kunming basin.The data used are synthe-sized from seismogeological data,borehole data,topographic data,digital elevation mode(DEM)data,seismicexploration results and wave velocity measurements.Stratigraphic division is based mainly on shear wave velocity,with strata sequence taken into consideration.The model construction is finally accomplished with ArcGIS andmany relevant programming techniques via layer-by-layer stacking(in depth direction)of the adjacent mediuminterfaces(meshes).Meanwhile,a database of 3-D physical models is set up,which provides model data and pa-rameters for strong ground motion simulation.Some processing methods and significant issues are also addressedin the paper in accordance with different types of exploration and experimental data.
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| 关 键 词： | 强地面运动 数值模拟 三维物理模型 昆明盆地 |
| 文章编号： | 1000-9116（2007）02-0194-12 |
| 收稿时间： | 2006-07-03 |
| 修稿时间： | 2006-11-17 |
3-D physical model in strong ground motion numerical simulation: A case study of Kunming basin |
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| Zhang Dong-li , Xu Xi-wei , Zhao Bo-ming , Chen Gui-hua and Xie Ting-wei.3-D physical model in strong ground motion numerical simulation: A case study of Kunming basin[J].Acta Seismologica Sinica(English Edition),2007,20(2):194-205. |
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| Authors: | Zhang Dong-li Xu Xi-wei Zhao Bo-ming Chen Gui-hua and Xie Ting-wei |
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| Institution: | (1) Institute of Geology, China Earthquake Administration, Beijing, 100029, China;(2) Lanzhou Base of Institute of Earthquake Science, China Earthquake Administration, Lanzhou, 730000, China;(3) Beijing Jiaotong University, Beijing, 100044, China |
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| Abstract: | Seismic hazard assessment based on urban active faults can provide scientific bases for city planning and project construction,while numerical simulation of strong ground motion is an important method for seismic hazard pre-diction and assessment.A 3-D physical model in conformity with real strata configuration of(mainly)the Quater-nary is a prerequisite to ensure the reliability of the simulation results.In this paper,we give a detailed account of the technical scheme and process for creating a 3-D physical model in Kunming basin.The data used are synthe-sized from seismogeological data,borehole data,topographic data,digital elevation mode(DEM)data,seismic exploration results and wave velocity measurements.Stratigraphic division is based mainly on shear wave velocity,with strata sequence taken into consideration.The model construction is finally accomplished with ArcGIS and many relevant programming techniques via layer-by-layer stacking(in depth direction)of the adjacent medium interfaces(meshes).Meanwhile,a database of 3-D physical models is set up,which provides model data and pa-rameters for strong ground motion simulation.Some processing methods and significant issues are also addressed in the paper in accordance with different types of exploration and experimental data. |
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| Keywords: | strong ground motion 3-D physical model Quaternary Kunming basin |
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