Susceptibility Forecast of Geo-Hazard under the Conditions of Earthquake and Rainfall

Shu Jun Tian; Ji Ming Kong

doi:10.4028/www.scientific.net/AMM.353-356.1219

Paper Titles

Anisotropic Variation Characteristics of Pore Distribution Based on Saturated Clay Microstructure
p.1203

Study on the Relationship between Deformation and Stability of Large Landslide with the Rainfall
p.1207

Gushing Water of a Deep Buried Long Tunnel under High Water Pressure and High Ground Stress
p.1211

The Road Surface Collapse Geophysical Exploration and Governance Measures
p.1215

Susceptibility Forecast of Geo-Hazard under the Conditions of Earthquake and Rainfall
p.1219

Consolidation Settlement of the Modern Yellow River Subaqueous Delta
p.1223

Exploration of Determining the Bearing Capacity of Calcareous Concretion Soil with Static Cone Penetration
p.1229

Statistical Analysis the Distribution of Landslide Triggered by m 8.0 Wenchuan, China Earthquake of May 12, 2008
p.1236

A Study on the Differences of Mechanical Properties between CH₄ and CO₂ Hydrate-Bearing Sediments
p.1240

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 353-356Susceptibility Forecast of Geo-Hazard under the...

Susceptibility Forecast of Geo-Hazard under the Conditions of Earthquake and Rainfall

Abstract:

Large amount of loose deposits and potential geo-hazards were formed by Wenchuan earthquake, which would be transformed into collapses, landslide and debris flows under the condition of rainfall or aftershock. The paper divides influence factors into triggering factors and background factors, and constitutes susceptibility forecast system for geo-hazard based on factors in parallel or series. The background system contains stratum, distance to river, relief, slope and aspect of slope. And the triggering system includes distance to seismic fault and rainfall. The paper applies and verifies the system to forecast the susceptibility of geo-hazard in study area, and the result shows that 52 small watersheds are in extremely high and high states accounting for 37.68% in 138 small watersheds. According to the statistics of 23 geo-hazards from field investigation, 13 geo-hazards are in extremely high risk grade of susceptibility and 10 geo-hazards are in high risk grade of susceptibility, which shows that the result of susceptibility forecast of geo-hazard is reasonable.