NUMERICAL SIMULATION OF LANDSLIDE MECHANISM AT ERMANSHAN IN HANYUAN UNDER DIFFERENT CONDITIONS

TAO Qian; LIU Chao; ZHU Zhi-ming; YANG Yong; ZOU Zuyin

Volume 18 Issue 4

Dec. 2012

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Article Navigation > Journal of Geomechanics > 2012 > 18(4): 440-450

TAO Qian, LIU Chao, ZHU Zhi-ming, et al., 2012. NUMERICAL SIMULATION OF LANDSLIDE MECHANISM AT ERMANSHAN IN HANYUAN UNDER DIFFERENT CONDITIONS. Journal of Geomechanics, 18 (4): 440-450.

Citation:

TAO Qian, LIU Chao, ZHU Zhi-ming, et al., 2012. NUMERICAL SIMULATION OF LANDSLIDE MECHANISM AT ERMANSHAN IN HANYUAN UNDER DIFFERENT CONDITIONS. Journal of Geomechanics, 18 (4): 440-450.

Citation:

TAO Qian, LIU Chao, ZHU Zhi-ming, et al., 2012. NUMERICAL SIMULATION OF LANDSLIDE MECHANISM AT ERMANSHAN IN HANYUAN UNDER DIFFERENT CONDITIONS. Journal of Geomechanics, 18 (4): 440-450.

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NUMERICAL SIMULATION OF LANDSLIDE MECHANISM AT ERMANSHAN IN HANYUAN UNDER DIFFERENT CONDITIONS

TAO Qian^1
,,
LIU Chao¹,
ZHU Zhi-ming¹,
YANG Yong¹,
ZOU Zuyin^{1, 2
,
,}

1.
Urban and Rural Construction College, Sichuan Agricultural University, Dujiangyan 611830, China
2.
College of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China

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Received: 2012-06-25
Published: 2012-12-01

Abstract

Abstract

In this paper, the FLAC^3D software was used to establish the model of Ermanshan Mountain in Hanyuan County, Ya'an City, Sichuan Province and to simulate the rainfall landslide process. The stress-strain features and slope stability were calculated and analysed in order to offer a reliable basis for the prediction of second landslide induced by earthquake and disaster prevention and reduction. Under the assumption of earthquake condition, the experiment detail analysed the dynamic characteristics of the side slope and obtained the dynamic characteristic curve of the monitoring points. Under the assumption of rainfall condition, the safety coefficient table with different strength reductions was acquired based on the stability analysis of the slope. Researches showed that the relatively special terrain conditions, geological structure and unfavourable structural surface combination were the basis of the landslide. Saturated water loading and the infiltration softening effect of a large amount of water along the oblique groove tension crack structural plane during the earlier heavy rainfall were the key factors causing landslide.
- landslide,
- earthquake,
- rainfall,
- stability of side slope,
- numerical simulation

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References(10)

References

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