Volume 18 Issue 1
Feb.  2010
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LI Xiuzhen, KONG Jiming, CUI Yun, TIAN Shujun. 2010: STATISTICAL RELATIONS BETWEEN LANDSLIDES INDUCED BY WENCHUAN EARTHQUAKE AND EARTHQUAKE PARAMETERS,GEOLOGICAL AS WELL AS GEOMORPHOLOGICAL FACTORS. JOURNAL OF ENGINEERING GEOLOGY, 18(1): 8.
Citation: LI Xiuzhen, KONG Jiming, CUI Yun, TIAN Shujun. 2010: STATISTICAL RELATIONS BETWEEN LANDSLIDES INDUCED BY WENCHUAN EARTHQUAKE AND EARTHQUAKE PARAMETERS,GEOLOGICAL AS WELL AS GEOMORPHOLOGICAL FACTORS. JOURNAL OF ENGINEERING GEOLOGY, 18(1): 8.

STATISTICAL RELATIONS BETWEEN LANDSLIDES INDUCED BY WENCHUAN EARTHQUAKE AND EARTHQUAKE PARAMETERS,GEOLOGICAL AS WELL AS GEOMORPHOLOGICAL FACTORS

  • Publish Date: 2010-02-27
  • This paper is based on investigations of the landslides induced by Wenchuan Earthquake and collection and analysis of the related data. It presents the statistical relations between the earthquakeinduced landslides and other factors including earthquake parameters,geological and geomorphological factors. The results show that: (1)the landslides caused by Wenchuan earthquake mainly occurred in the Ⅶ~Ⅺ intensity districts,there were rather fewer landslides in the Ⅵ and below intensity districts; (2)the earthquakeinduced landslides mainly occurred in the area 300 km from the epicenter,and intensively distributed in the area 200 km from the epicenter; (3)the slopes with the dip angle of 30~50,especially 30~40,are very easy to slide during Wenchuan Earthquake; (4)the earthquakeinduced landslides mainly distributed in the elevation range of 600~1500m,especially 600~1000 m; (5)soft rocks such as mudstone,shale,schist and so on,are the easiest to slide during Wenchuan Earthquake; the combination of soft and hard rocks is secondary to slide; and hard rocks such as granite and carbonate rocks are not easy to slide; only a few old landslides were reactivated by Wenchuan Earthquake.
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      沈阳化工大学材料科学与工程学院 沈阳 110142

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