Study On Damage Evaluation Of Surface Buildings Caused By Mining Subsidence

As the rapid development of national economy and the increased improvement of living standard, all walks of life pay more and more attention to the demand of coal resource. Thus, it will impel relevant departments to exploit more regions which probably contain coal, such as mining under buildings. Consequently, it maybe arouse subsidence, movement, and deformation for the surface, and make the buildings incine, crack and collapse.Research background of this paper results from damage of buildings caused by the10101face mining for Sucun coal mine. On the basis of summarizing and referring to fomer relevant studies, this paper reasonably predicts the subsidence range, and comprehensivly evaluates the damaged grade of buildings according to relevant rules, norms and fuzzy mathematics theory.First, we consisely summarize geological information for the coal mine by analyzing and understanding geological report and drawing information of Sucun coal mine. Then, we use rock core sent to make the indoor rock mechanics test about rock strength, and lay a foundation for the following subsidence prediction.Secondly, we calculate and forecast the movement and deformation of surface with the help of probability integral method and MMSPS system, thus laying a solid foundation for the next comprehensive evaluation.Finally, we select nine key effect factors as the factor set of fuzzy comprehensive evaluation by analyzing ang researching the relevant resources with the former several chapters. Then, we make comprehensive evaluation for the damage grade of surface buildings, by comparing with field measurement statistical comprehensive evaluation, expert comprehensive evaluation, and multilevel comprehensive evaluation.