关键词: 保护煤柱, 巷道布置, Matlab, 地表移动变形, 非充分采动

Abstract: Many mines optimize their development or prepared roadway in protective coal pillar for buildings such as villages. To solve the problem of prediction for surface subsidence of roadway in protective coal pillar for buildings such as villages, the authors put forward the probability density function method in surface subsidence prediction of roadway layout in protective coal pillar for buildings, and the paper studied the parameters’ selection of surface subsidence rates and deviation of inflection point in the protective coal pillar roadways layout after it’s sheared. With the aid of Matlab platform, this paper studied surface movement deformation under this situation. Research and engineering application show that the probability density function method and surface subsidence parameters selection system of sub-critical mining condition for used for roadway layout in protective coal pillar of buildings is very appropriate. Combining research results of surface ultimate tensile deformation value for brick-concrete structure buildings, maximum surface subsidence value on condition of three roadway layout is about 1.24 times of double roadway layout in protective coal pillar.