河南漯河市舒漫财富中心2010年整合推广方案.ppt

Abstract
In order to fully recover ore resources,the filling method which reserves the stope pillar is being planed to use at Chengchao Iron Mine in the late for recovering the ore which is used as safety pillar at western reserved stope pillar contains two
type is the top pillar of stope which is left by mining room with other type is the pillar of slope protection which closes to the caving paper used theoretical analysis,numerical simulation and similar simulation with basic theories including theoretical mechanics,structural mechanics and elastic mechanics research the calculation model about reasonable size in the safety pillar’S exploitation with filling method in Chengchao Iron research can provide guidance for ensuring the stope size in the practice of mine production and also provide reference for the similar projects.
According to its force state with the filling method,the top pillar of stope can be simplified into four kind of mechanical simplified this paper established the top pillar of stopes’finite element numerical calculation model to simulate the characteristics of strain distribution in each on strain distribution characteristics at the bottom of the top pillar of stope pared the results of the
numerical simulation with mechanical simplified models calculation,the simply
supported beam was confirmed as the optimal mechanical simplified models of the top pillar of bined with the practical situation of mine production,a thickness of 1 and a span of 1 5m about the top pillar of stope were determined.
According to its force condition,the reserved pillar of slope protection Can be simplified into two kind posite beam established the pillar of stope
protection’S finite element numerical calculation model to simulate the characteristics of strain distribution in each on the characteristics of strain distribution at the inclined