【摘要】 目的研究走向长壁冒落式开采的老采区地表沉陷盆地倾向主断面残余移动变形.方法通过对倾向主断面覆岩冒落、断裂、离层、弯曲过程的机理分析,采用概率积分法、随机介质理论和等影响原理构造了倾向主断面地表残余移动变形的数学模型,并采用实际观测数据与预测数据对比、不同数学模型分析对比两种方式进行了数学模型的验证.结果缓倾斜煤层和大倾角煤层倾向主断面实际观测数据与预测模型计算的误差均在允许范围10%以内.得出倾向主断面地表残余下沉、倾向主断面地表残余倾斜变形、倾向主断面地表残余曲率变形、倾向主断面地表残余水平移动、倾向主断面地表残余水平变形数学模型.结论各数学模型不仅能够把矿区已有岩移参数转化为残余移动变形预测参数,而且可以定量描述倾斜煤层倾向主断面地表残余移动变形规律,可推广性强.更多还原

【Abstract】 Residual movement and deformation in inclined main section of surface subsidence basin in the old mining area mined by along strike longwall with caving is a hot research content of mining subsidence.Based on the study of the mechanism of overlying rock falling,breaking,separating and bending,mathematical models of residual movement and deformation of surface in inclined main fracture surface is constructed by probability integral method,stochastic medium theory and equal influence principle,and are verified by two ways,including the comparison of the actual observation data with the prediction data and the analysis and comparison of the different mathematical models.The results show that the errors between the actual observation data and the prediction models calculation of gently inclined coal seam large angle inclined coal seam are within the allowable range of 10%.It is obtained that mathematical models of residual subsidence of surface,residual slope deformation of surface,residual curvature deformation of surface,residual horizontal movement of surface and residual horizontal deformation of surface in inclined main section.These mathematical models can not only transform the existing rock movement parameters into the prediction parameters of residual movement deformation parameters,but also quantitatively describe the residual movement and deformation law of the main section in inclined coal seam.And all of mathematical models have a high generalizability.更多还原