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基于对强排水条件下矿区岩溶塌陷的地质结构要素和水文地质特征分析 ,确立了岩溶塌陷地段地质结构模型 ,并建立了相应的岩土力学模型。该模型耦合了重力、吸蚀和渗流作用。通过定量分析 ,得到了相应的塌陷判据 ,并用安全因数Fs 来表征溶蚀空间上覆盖层的安全性。据此思路 ,可将岩溶塌陷工程地质评价由定性引向定量 ,有助于提高塌陷空间预测的精度
Based on the analysis of geological structural elements and hydrogeological features of karst collapse in mining area under strong drainage conditions, the geological structural model of karst collapse area was established and corresponding geomechanical models were established. The model couples gravity, erosion and seepage. By quantitative analysis, the corresponding collapse criterion is obtained, and the safety factor Fs is used to characterize the safety of overburden on the eroded space. According to this train of thought, the geological evaluation of karst collapse engineering can be quantitatively directed to improve the prediction accuracy of collapse space