Predictive Study on Surface Movement and Deformation in Mined-out Area
WANG Jinxi
LI Yanheng
SUN Lihui
Abstract：The surface subsidence in mined-out area caused great losses and damage of surface structures and environment. In this paper, study was started with the engineering geological conditions of the rock mass and prediction was made on the surface movement and deformation which were caused by mining with the probability integral method. The results showed that the maximum subsidence value was 3. 41m which was obtained by the maximum calculation formula of the semi-infinite mining. Besides, based on FLAC3D , a model was established, and the stress and surface movement caused by mining were simulated, the results tallied well with the value calculated by probability integral method.
Keywords：mined-out areasurface movementprobability integral methodnumerical simulation
Publication Date：2013-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 5-7,11 )