ABSTRACT
With the increasing shortage of urban construction land, the land resources above the surrounding goaf have to be used. In order to ensure the safety of buildings (structures) during construction above the mined-out area, a feasibility analysis of the construction of the involved area must be carried out, and corresponding foundation treatment and anti-deformation measures should be taken when necessary. At present, the evaluation method for the foundation stability of longwall goaf is relatively mature. Because strip mining may have many problems such as design flaws, coal pillar softening, groundwater erosion and weathering, etc., the stability judgment has not yet formed a unified evaluation standard. Based on the analysis of the characteristics of strip mining and the evaluation method of coal pillar stability, the article studies the feasibility of engineering construction above the strip goaf. It is introduced and analyzed based on engineering examples to provide references for the design and construction of related fields.
