Study on Optimal Design for Backfill Mining Coal Under Buildings
Abstract：Based on the summarization of Germany and Poland backfill mining, in view of coal mine building protection level and surface deformation index and other industry standard in China, Germany and Poland, the paper puts forward some suggestions about ground building deformation control index when backfill mining. This paper indicates that should take into account geological and mining conditions, surface movement rule, surface protected objects' movement allowed deformation index and the filling ability in the process of the backfill mining under buildings, and design optimum calculation model of the allowed mining thickness, workface filling rate and the workface mining speed and an assessment model on reducing damage to buildings benefits of backfill mining; in addition, for the sake of ensuring the safety mining under buildings, avoiding excessive filling and waste filling material which increase production cost, the related research results provide the optimal design reference for backfill mining under buildings.
Keywords：coal under buildingsbackfill miningoptimal calculationassessment model
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 19-23 )