Gob Under Buildings Stability Analysis And Treatment Technology

As urban development and expansion needs, many of the original in the suburban areas of mined land resources must be used, it must be mined area on the construction of buildings, so the research Goaf Under the new buildings have an important role in the stability. In this paper, under the new buildings of the gob roof stability calculation and numerical simulation of the stability of mined-out area analysis, and new buildings under the gob Treatment methods research, made some conclusions.This article reviewing relevant literature has been a comprehensive analysis to explain the formation of mined areas, the stability analysis of gob, gob treatment method and numerical simulation of Gob summarized. Under the new buildings through the gob roof stability calculation and evaluation of new buildings under the gob roof stable critical thickness could be determined whether to deal with.Related to modeling using the finite difference method, a more simple and practical new building stability Mined area analysis model has been established, and large-scale finite difference analysis software FLAC3D is used on the new buildings surrounding mined-out area under the stress and the ground Settlement of the numerical simulation; Through numerical simulation, it has been analysised the various mining gob wide and new buildings and the different layers of the gob roof thickness on stability of mined areas.This article is also building new housing area under the roof mined the stability of the calculation, described dealing with common method of mined areas, proposed filling clay solidified grouting approach to the method of mined areas, and its made a feasibility analysis.