IMHE OpenIR  > 山地灾害与地表过程重点实验室
Alternative TitleGeological Structure Effects on Development of Mountain Hazards in Wenchuan Earthquake
田述军1,2,3; 孔纪名1,2; 阿发友1,2,3; 崔云1,2,3
Source Publication水土保持通报
Contribution Rank1
Other Abstract4 945 earthquake-induced mountain hazards in Wenchuan Earthquake were identified by field investigation and interpretation of remote-sensing images. GIS techniques were used to finish the statistical data analysis for the relationship between distribution of mountain hazards and environmental factors, including distance from middle faults, seismic intensity, and lithology. Research on the geological structure effects on the development of mountain hazards in earthquake was then conducted. The main results are summarized as follows:(1)The zonal distribution of mountain hazards was consistent with strike of middle faults and seismic energy was mainly released along the middle faults which caused the attenuation of energy obvious in the minor axis perpendicular to middle faults. The high density of hazards was distributed within the distance 12 km from middle faults. The density in hangingwalls of middle faults was obviously higher than that in footwalls because the middle faults belong to reversed thrust faults. The density appeared as reduction-increase-reduction in the footwalls of middle faults because of the combined action of middle faults and front faults which both belong to reversed thrust faults.(2)The mountain hazards, well developed at Ⅺ and Ⅹ seismic intensities, were obviously responsive with seismic energy, and about 99.29% of the mountain hazards were distributed in the areas where seismic intensity was greater than Ⅶ.(3)The density appeared in the order of calculous rock>solid rock>loose rock>soft rock. Calculous rock was easy to disintegrate, especially the alternative distribution of calculous rock and soft rock by the effect of seismic wave. Many collapses were well developed in calculous rocks and landslides were well developed in loose rocks
Keyword山地灾害 发震断裂 地震烈度 汶川大地震
Indexed ByCSCD
Citation statistics
Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
Corresponding Author孔纪名
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
田述军,孔纪名,阿发友,等. 地质构造对汶川大地震山地灾害发育的影响[J]. 水土保持通报,2010,30(3):52-55+59.
APA 田述军,孔纪名,阿发友,&崔云.(2010).地质构造对汶川大地震山地灾害发育的影响.水土保持通报,30(3),52-55+59.
MLA 田述军,et al."地质构造对汶川大地震山地灾害发育的影响".水土保持通报 30.3(2010):52-55+59.
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