汶川地震滑坡的分布特点及最大震中距分析-自然灾害学报.PDF

18 5 Vo.l 18 No. 5 2009 10 JOURNAL OF NATURAL DISASTERS Oct. 2009 : 1004- 4574(2009) 05- 0010- 06 1, 2 3 1, 2 1, 2 1, 2 1, 2 乔建平 , 蒲晓虹 , 王 萌 , 杨宗佶 , 石莉莉 , 田宏岭 ( 1. , 610041; 2. , 610041; 3. , 610041) : 5 12, ,, , , , , :; ;; : P64222 : A Analysis of distribu tion characteristics of landslide induced in W en chuan earthquake and relevan t m axim um ep icen ter distance 1, 2 3 1, 2 1, 2 1, 2 1, 2 QIAO Jianping , PU X iaohong,WANG Meng , YANG Zong ji , SH I Lili , TIAN Hongling ( 1K ey L aboratory ofM ountain Hazards and SurfaceP rocess, ChineseAcademy of Sciences, Chengdu 610041, China; 2Institute ofM ountainHazards and Environment, ChineseAcademy of Sciences andM inistry ofWater Conservancy, Chengdu 610041, China; 3Sichuan EarthquakeA dm inistration, Chengdu 610041, China) Abs tract: The earthquake ofMay 12 inWenchuan induced lots of landslides, rockfall and topographic alteration, which formed many barrier lakes, destroyed houses and roads and led to a dangerous zonie of secondary landslide disasters. In this paper, taking Dujiangyan, Pengzhou, Chongzhou, Q ionglai and Dayi in Chengdu C ity as research areas, the statistical relationship of laudslide distribution w ith geological /geomorphological condition and macro scopic intensity was analyzed ased on the determ ination ofmacroscopic epicentral location, the distributive char acteristics of landslidesw ith differnt scalewere researched by using maxmi um epicenter distancemethod and a line ar distribution rule are obtained K ey w ord s: eart