采煤沉陷预测及治理研究毕业论文

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1、 I 白家庄矿采煤沉陷预测及治理研究 摘要摘要 随着煤炭资源的开采， 越来越多的土地因为采空区塌陷而遭到破坏， 威胁到地表人 群的生产生活安全，也对生态环境造成很大破环。因此有必要对采煤沉陷区进行预测、 防治研究。 本文以白家庄矿 36703 工作面上方的地表为研究对象， 根据工作面上方顶板的地质 采矿条件， 分别采用概率积分法和三维快速拉格朗日有限差分法 （FLAC3D 数值模拟） ， 对受开采影响的地表移动和变形进行静态和动态预测。 获得了地表的下沉值、 下沉范围。 预测结果表明，在地表移动和变形预测方面，概率积分法和 FLAC3D 数值模拟都是可 行的。 作为一种三维显式有限差分法的数值

2、分析工具， FLAC3D 在采煤沉陷模拟预测方 面具有广阔的应用前景，其直观、动态的分析将丰富采煤沉陷移动与变形的研究。 本文最后根据概率积分法和 FLAC3D 数值模拟的预测结果，结合矿区的实际，提 出了土地复垦和生态重建的治理方法。 对于沉陷治理工作， 提出了要从源头防治的措施， 应采用更合理的采煤方式防止沉陷发生。 关键词：预测；概率积分法；FLAC3D 数值模拟；地表移动和变形；土地复垦 II A study of mining subsidence prediction and management on Bajiazhuang coal Abstract With the expl

3、oitation of coal resources,an increasing number of land due to subsidence of mined-out area was destroied. The subsidence seriously threats to the ground productive and life safety of people, but also destroied ecological environment. Therefore, it is necessary for mining subsidence to research pred

4、iction and controlling. This paper takes ground above 36073 working face of baijiazhuang coal as an example. According to the geological and mining conditions of 36703 working face, it static and dynamic predicts the displacement and deformation of surface with the probability-integral method and Fa

5、st Lagrangian Analysis of Continua in 3 Dimensions(numerical simulation with FLAC3D) respectively. Results of prediction pointed out the value of the ground subsidence, the subsidence area. It shows that the probability-integral method and numerical simulation with FLAC3D are feasible on predicting

6、displacement and deformation of the ground. But, as a three-dimensional explicit finite-difference analysis tool, the application in simulation and prediction mining subsidence has broad application prospect.Its visualized and dynamic analysis will be rich in the study which predicts the displacement and deformation of mining under ground. Finally,according to the predicted results of the probability-integral method and numerical simulation with FLAC3D, the treatment of the land reclamation an