Estimating soil erosion changes in the Wenchuan earthquake disaster area using geo-spatial information technology

2009 ◽  
Vol 3 (1) ◽  
pp. 031675 ◽  
Author(s):  
Bing Zhang
Keyword(s):  
Information Technology ◽  
Soil Erosion ◽  
Wenchuan Earthquake ◽  
Spatial Information ◽  
Earthquake Disaster ◽  
The Wenchuan Earthquake ◽  
Disaster Area ◽  
Spatial Information Technology

The Practical Research of Engineering Materials for the Temporary House after Earthquake

2014 ◽  
Vol 978 ◽  
pp. 27-30
Author(s):  
Si Ru Qian
Keyword(s):  
Wenchuan Earthquake ◽  
Large Scale ◽  
Earthquake Disaster ◽  
The Wenchuan Earthquake ◽  
Disaster Area ◽  
Practical Research ◽  
Engineering Materials ◽  
First Time ◽  
Large Scale Project

After the WenChuan earthquake in may 12,2008,Many province government built the temporary houses for earthquake disaster area.For the first time, they initiate such large scale project, there are many problems emerged during the process of construction such problem like economy ,environment, engineering materials and technology. In this article, we collect problems and analysis them ,seek for the possible measures of construct the temporary house and the effective way to rebuilt the disaster area.

Predication of River Water Quality Based on Gray Dynamic Model Group in Wenchuan Earthquake Disaster Area

2013 ◽  
Vol 316-317 ◽  
pp. 599-605
Author(s):  
Feng Qian ◽  
Wei Lin ◽  
Bo Hu ◽  
Jing Jun Liu ◽  
Ming Biao Xiong
Keyword(s):  
Water Quality ◽  
River Water ◽  
Wenchuan Earthquake ◽  
Water Loss ◽  
River Water Quality ◽  
Total Hardness ◽  
Earthquake Disaster ◽  
Soil And Water Loss ◽  
Disaster Area ◽  
Soil And Water

“5.12 Wenchuan earthquake”triggered floods, landslide, collapse and secondary geological disaster, trigger a new soil and water loss, having the significant influence to the local river water quality.This article through the statistical analysis of minjiang river and jiangyou wenchuan, beichuan station 2006 ~ 2011 water conditions material, discussing the before and after the earthquake disaster areas of river water quality change characteristics. The results showed From ammonia nitrogen source analysis, urban sewage and industrial waste water, agricultural non-point source pollution and earthquake that triggered the new soil and water loss is the main pollution source. Based on the hydrological site total hardness concentration prediction, we can find wenchuan earthquake disaster area total hardness concentration significantly increase trend.

scholarly journals Safety Assessment of Tunnel Portals for Site Selection Based on Spatial Information Geoprocessing

2019 ◽  
Vol 4 (4) ◽  
pp. 70
Author(s):  
Iau-Teh Wang
Keyword(s):  
Information Technology ◽  
Slope Stability ◽  
Site Selection ◽  
Spatial Information ◽  
Slope Instability ◽  
Geographical Information ◽  
Site Evaluation ◽  
The Stability ◽  
Slice Method ◽  
Spatial Information Technology

The evaluation of portal locations for mountain tunnels is among the most crucial considerations during route selection and structural layout planning. The development of spatial information technology has provided a more objective approach for assessing the slope stability of potential portal sites. The simulations in such studies have been performed to evaluate potential hazards and slope stability. However, potential instabilities resulting from excavation are seldom considered in these studies. Therefore, a method based on spatial information technology was developed in this study for considering the potential impact of the direction and depth of excavations on portal stability. An analysis method for an infinite slope was integrated into the geographical information system for evaluating the stability of critical wedges. The proposed method provides a reasonable estimation comparable with that provided by the conventional slice method. The results of applying this method to six mountain tunnel portals where slope instability occurred during construction indicate that the actual outcomes agreed with the predicted outcomes. For potential portal site evaluation, the proposed method facilitates the rapid estimation of safety factors for various slope designations, which is useful for site selection.

Sign in / Sign up

Export Citation Format

Share Document