Abstract
Some significant hazards may occur due to large landslide-dams formed by earthquake induced landslides. It presents serious threats to both life and property from possible upstream flooding as the impounded lake water level rises, possible dam failure and downstream flooding as rapid release of impounded water. In order to prevent those secondary disasters, we made an assumption that the landslide dam is only formed when a large amount of landslide deposits directly rush into a river with moderate or high-velocities, and then presented a practical prediction method to extract the dangerous slopes as sources of earthquake induced landslide-dam formation. The prediction procedure consists of the following steps: (1) Identification of all the slopes using spatial statistics; (2) The extraction of potential slopes according to our assumption using three spatial relation filters; (3) Stability analysis to determine landslide prone slopes and volume estimation of potential landslide deposits using Limit Equilibrium Analysis. (4) Production of susceptibility map by ranking the exact slopes. This method has been used to extract slopes those have potential to collapse and form landslide-dams in the catchment of Tongkou river based on the data from 2008 Wenchuan earthquake. The results show that the proposed method is effective and efficient.
| Original language | English |
|---|---|
| Title of host publication | 47th US Rock Mechanics / Geomechanics Symposium 2013 |
| Pages | 2646-2653 |
| Number of pages | 8 |
| Publication status | Published - Dec 1 2013 |
| Event | 47th US Rock Mechanics / Geomechanics Symposium 2013 - San Francisco, CA, United States Duration: Jun 23 2013 → Jun 26 2013 |
Publication series
| Name | 47th US Rock Mechanics / Geomechanics Symposium 2013 |
|---|---|
| Volume | 4 |
Other
| Other | 47th US Rock Mechanics / Geomechanics Symposium 2013 |
|---|---|
| Country | United States |
| City | San Francisco, CA |
| Period | 6/23/13 → 6/26/13 |
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All Science Journal Classification (ASJC) codes
- Geotechnical Engineering and Engineering Geology
Cite this
Susceptibility analysis of earthquake induced landslide-dam based on GIS. / Fan, Yanan; Chen, Guangqi; Kasama, Kiyonobu; Li, Yange.
47th US Rock Mechanics / Geomechanics Symposium 2013. 2013. p. 2646-2653 (47th US Rock Mechanics / Geomechanics Symposium 2013; Vol. 4).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Susceptibility analysis of earthquake induced landslide-dam based on GIS
AU - Fan, Yanan
AU - Chen, Guangqi
AU - Kasama, Kiyonobu
AU - Li, Yange
PY - 2013/12/1
Y1 - 2013/12/1
N2 - Some significant hazards may occur due to large landslide-dams formed by earthquake induced landslides. It presents serious threats to both life and property from possible upstream flooding as the impounded lake water level rises, possible dam failure and downstream flooding as rapid release of impounded water. In order to prevent those secondary disasters, we made an assumption that the landslide dam is only formed when a large amount of landslide deposits directly rush into a river with moderate or high-velocities, and then presented a practical prediction method to extract the dangerous slopes as sources of earthquake induced landslide-dam formation. The prediction procedure consists of the following steps: (1) Identification of all the slopes using spatial statistics; (2) The extraction of potential slopes according to our assumption using three spatial relation filters; (3) Stability analysis to determine landslide prone slopes and volume estimation of potential landslide deposits using Limit Equilibrium Analysis. (4) Production of susceptibility map by ranking the exact slopes. This method has been used to extract slopes those have potential to collapse and form landslide-dams in the catchment of Tongkou river based on the data from 2008 Wenchuan earthquake. The results show that the proposed method is effective and efficient.
AB - Some significant hazards may occur due to large landslide-dams formed by earthquake induced landslides. It presents serious threats to both life and property from possible upstream flooding as the impounded lake water level rises, possible dam failure and downstream flooding as rapid release of impounded water. In order to prevent those secondary disasters, we made an assumption that the landslide dam is only formed when a large amount of landslide deposits directly rush into a river with moderate or high-velocities, and then presented a practical prediction method to extract the dangerous slopes as sources of earthquake induced landslide-dam formation. The prediction procedure consists of the following steps: (1) Identification of all the slopes using spatial statistics; (2) The extraction of potential slopes according to our assumption using three spatial relation filters; (3) Stability analysis to determine landslide prone slopes and volume estimation of potential landslide deposits using Limit Equilibrium Analysis. (4) Production of susceptibility map by ranking the exact slopes. This method has been used to extract slopes those have potential to collapse and form landslide-dams in the catchment of Tongkou river based on the data from 2008 Wenchuan earthquake. The results show that the proposed method is effective and efficient.
UR - http://www.scopus.com/inward/record.url?scp=84892853015&partnerID=8YFLogxK
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M3 - Conference contribution
AN - SCOPUS:84892853015
SN - 9781629931180
T3 - 47th US Rock Mechanics / Geomechanics Symposium 2013
SP - 2646
EP - 2653
BT - 47th US Rock Mechanics / Geomechanics Symposium 2013
ER -