ABSTRACT
ABSTRACT: Fault rotation is one of the key factors that cannot be ignored which cause the surface deformation. This paper established the model between fault rotation and surface displacement in the infinite elastic medium space based on the disclination theory. We took Longmen mountain as study area, which is a strong faults activities area in China, then used the above model to study the horizontal and vertical displacements spatial distribution characteristics induced by Longmen Mountain fault aseismic rotation. Then it is comparised the simulated results with GPS measured coseismic results. The model simulation results show that (1) the Longmen mountain fault has significant nature of thrust fault; (2) The closer to the fault, the larger displacements the land surface have, the maximum value located in Beichuan area; (3) At the two end points of Longmen mountain fault the simulated displacements present a messy state. The Simulated results have better consistent with GPS measured coseismic results, and there are certain differences in the displacements magnitude.
