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在地质条件复杂,特别是遇到断层的情况下,地表沉陷的正常规律被掩盖,表现出特殊的规律性.对断层影响下的开采沉陷预计问题进行了研究,建立了基于概率积分法的预计模型.在该模型中,将开采引起断层的离层空间看成一个等效倾斜采空区,分别计算实际采空区和等效采空区对地表的影响,然后将两者叠加起来,得到地表变形.基于AutoCADVBA平台,利用该预计模型开发了预计程序.运用该程序可以预计计算出断层影响下地表的:下沉值(W)、水平移动值(U)、倾斜值(i)、曲率值(k)、水平变形值(ε).程序能以栅格或是矢量数据格式输出变形曲线.通过与实测资料对比,验证了该模型的正确性.
Under the condition of complex geological conditions, especially in case of faults, the normal law of surface subsidence is masked and shows a special regularity.The prediction of mining subsidence under the influence of faults is studied, and the prediction based on probability integral method is established In this model, the delamination space of mining fault is considered as an equivalent inclined goaf, and the effects of the actual goaf and equivalent goaf on the surface are calculated respectively, then the two are summed to obtain Based on the AutoCADVBA platform, a prediction program is developed based on this model, which can be used to predict the surface under the influence of faults: subsidence (W), horizontal movement (U), inclination (i), curvature Value (k), horizontal deformation (ε) .The program can output the deformation curve in grid or vector data.Compared with the measured data, the correctness of the model is verified.