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中文摘要：
研究浅埋薄基岩煤层开采后在采空区上方形成的导水裂隙带范围对保水开采具有重要意义。基于煤层开采后地表移动和岩体内部移动的内在联系，采用随机介质方法，将地表移动的基本参数应用于岩体内部移动规律的研究中，建立了上覆岩层移动变形力学模型，推导了煤层开采后采空区上方岩层内的位移、应变和应力的数学表达式，分析了上覆岩层变形破坏的影响因素和破坏力学机理。在此基础上，给出了浅埋薄基岩煤层开采覆岩隔水层的破坏判据，为浅埋薄基岩煤层保水开采提供理论依据。
英文摘要：
The study on the range of water flowing fractured zone that generates above mine goals after the mining of coal overburden with shallow-thin bedrock has great significance on water-preserved-mining. Based on the internal relations between surface movement after seam mining and internal displacement of rock mass, the stochastic method was adopted. The basic parameters of surface movement were applied to research the laws of movement and deformation inside overburden rock mass. A mechanical model of the overburden deformation was built and the mathematical expressions of rock displacement, strain and stress above mine goaf after seam mining were derived. Then, the influencing factors and the breakage mechanism about overlying strata failure were analyzed. On this basis, the failure criterion of overlying strata aquifer with shallow-thin bedrock after seam mining was given, which provided the theoretical basis for water-preserved-mining of this kind of coal seam.
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