Study on influence of gangue filling and interval roadway excavation to surface movement and deformation
Zhang Xiao
Wang Donglin
Zhang Mingpeng
Xiao Zhimin
Dong Haifeng
Abstract：In order to solve problem of coal mining under buildings and gangue disposal,the technology of interval roadway excavation and gangue filling was studied.Based on limit span of rock beam and the ultimate bearing capacity of pillar analysis,dimensions of roadway mining pillar and establishing pillar were analyzed;at the same time,in order to control influence of coal mining on the ground movement and deformation ground displacement and deformation of various schemes were compared and analyzed by using probability integral method.The scheme of mining 5 m and staying 5 m was determined and the field industrial test was carried out.Through the analysis of surface subsidence along the strike and tendency of coal seam by layout of monitoring points results showed that influence of designed gangue filling and roadway mining plan on earth surface was very slight effectively control and surface movement and deformation in the buildings was in the range of "Ⅰ".
Keywords：gangue fillingstrip coal pillarroadway excavationsurface movement and deformation
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 33-38 )