jgg     2012 32 (5):  37-40    ISSN: 0412-1961  CN: 21-1139/TG DETERMINATION OF SURFACE RUPTURE CHARACTERISTICS OF WENCHUAN EARTHQUAKE AT DUJIANGYAN SEGMENT BASED ON ELEVATION CONTROLLING POINTS AND ENGINEERING DAMAGE Ren Junjie 1,2) ;Sun Xinze 2) ;Ding Rui 1) ; and Gong Zheng 1) 1)Key Laboratory of Crustal Dynamics, Institute of Crustal Dynamics, CEA, Beijing 100085;2)Institute of Geology, China Earthquake Administration, Beijing 100029 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null