Different fault impact on the regional tectonic stress field and the distribution of landslide collapse with finite element method

被引：0

作者：

Hui H. ^{[1
]}

Chen X. ^{[2
]}

Yang J. ^{[1
]}

Zhao Y. ^{[1
]}

机构：

[1] School of Earth and Space Science, Peking University, Beijing

[2] Institute of Geology, China Earthquake Administration, Beijing

来源：

Yanshi Xuebao/Acta Petrologica Sinica | 2017年 / 33卷 / 12期

关键词：

Co-seismic displacement; Different faults; Finite element; Wenchuan earthquake;

D O I：

10.18654/2095-8927/201404090072

中图分类号：

学科分类号：

摘要：

Earthquake-induced landslide because of its huge hazard caused widespread social concern. During an earthquake, large displacement is often accompanied by a strong ground motion, where under conditions suitable topography is easy to trigger landslides. In this paper, based on the establishment of three ideal models of normal faults, reverse faults and strike-slip faults with the finite element method, the distribution of these three co-seismic fault displacements produced were analyzed, and the potential for seismic landslide hazard areas were predicted. The results show that under the same differential stress, co-seismic displacements generated based on the size and distribution of different seismic fault model is different, but are concentrated in the vicinity of the fault. And strike-slip fault model are different, normal faults and reverse faults with seismic displacement model showed significant effects on the disk. This paper also studied the distribution of co-seismic displacement field generated by the earthquake and the landslide triggered by the earthquake, preliminary results show that the landslide occurred in the same general area of larger co-seismic displacement, and mainly on plate. © Science Press.

引用

共 5 条

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[2] Oglesby D.D., Archuleta R.J., Nielsen S.B., The dynamics of dip-slip faults: Explorations in two dimensions, J. Geophys. Res., 105, pp. 13643-13653, (2000)
[3] Oglesby D.D., Archuleta R.J., Nielsen S.B., The three dimensional dynamics of dipping faults, Bull. Seimol. Soc. Am., 90, pp. 616-628, (2000)
[4] Oglesby D.D., Mai P.M., Fault geometry, rupture dynamics and ground motion from potential earthquakes on the North anatolian fault under the sea of marmara, Geophysical Journal International, 188, 3, pp. 1071-1087
[5] Shen Z.K., Sun J.B., Zhang P.Z., Et al., Slip maxima at fault junctions and rupturing of Barriers during the 2008 wenchuan earthquake, Nature Geoscience, 2, pp. 718-724, (2009)

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