黄土矿区开采损害预计分析系统研究
发布时间：2018-10-29 10:25
【摘要】：煤炭开采引起的地表沉陷问题越来越受到重视,特别是黄土覆盖矿区,其地貌复杂,地表为厚黄土层所覆盖,其开采沉陷规律具有特殊性,传统的概率积分预计模型不能很好地适用于黄土矿区。针对不同地质条件,开发一个有效实用的开采损害预计分析系统具有重要的意义。结合对常规条件下的开采沉陷研究和对黄土矿区双层介质理论预计模型的研究,对不同地质条件下的开采沉陷预计方法进行了探讨。同时,利用开采沉陷理论及土力学原理,推导出了地表开采裂缝产生所需要的临界拉伸水平变形值,以及开采裂缝深度的预计公式。基于以上理论研究,在VS2010平台中利用C#语言,开发了一套开采损害预计分析系统软件,实现了开采沉陷预计和开采损害分析工作的自动化和可视化。本系统能够预计生成各项移动变形量的二维曲线、等值线图、移动下沉盆地的三维模拟图,且能够进行地表开采损害分析以及采动裂缝的范围预计。除此之外本系统还设计有针对黄土矿区的预计分析功能。结合预计系统的特色,进行了实例研究分析,首先利用实测数据求得移动变形预计参数,然后在所开发的开采损害预计分析系统中,对地表的各项移动变形值及分布进行了研究,对工作面开采的充分性进行了实验探讨,模拟了移动下沉盆地三维效果。并利用系统的裂缝预计分析功能,自动生成了裂缝的预计分布范围。实验研究不仅验证了裂缝预计理论的正确性和所开发预计系统的实用性,也为黄土矿区的开采沉陷问题提供了一个实际工程的典型实例,为其他相关研究者和工程实施者提供参考。
[Abstract]:More and more attention has been paid to the problem of surface subsidence caused by coal mining, especially the loess mining area, whose geomorphology is complex and the surface is covered by thick loess soil, so the law of mining subsidence has its particularity. The traditional probabilistic integral prediction model is not suitable for loess mining area. According to different geological conditions, it is of great significance to develop an effective and practical analysis system for mining damage prediction. Combined with the study of mining subsidence under conventional conditions and the theoretical prediction model of double-layer medium in loess mining area, the prediction methods of mining subsidence under different geological conditions are discussed. At the same time, based on the mining subsidence theory and soil mechanics principle, the critical tensile horizontal deformation value needed for surface mining cracks and the prediction formula of mining crack depth are derived. Based on the above theoretical research, a software of mining damage prediction system is developed by using C # language in VS2010 platform, which realizes the automation and visualization of mining subsidence prediction and mining damage analysis. The system can generate 2-D curves, isoline maps, three-dimensional simulated maps of moving and sinking basins, and can analyze the damage of surface mining and predict the range of mining fractures. In addition, the system also designed for the loess mining area prediction analysis function. Combined with the characteristics of the prediction system, an example study and analysis is carried out. First, the parameters of the displacement deformation prediction are obtained by using the measured data, and then in the developed mining damage prediction analysis system, The value and distribution of surface movement and deformation are studied, the sufficiency of mining face is discussed experimentally, and the three-dimensional effect of moving subsidence basin is simulated. The predicted distribution range of fractures is automatically generated by using the function of fracture prediction and analysis of the system. The experimental study not only verifies the correctness of fracture prediction theory and the practicability of developed prediction system, but also provides a typical example of practical engineering for mining subsidence in loess mining area. To provide reference for other relevant researchers and project implementers.
【学位授予单位】：西安科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD327
本文编号：2297428
[Abstract]:More and more attention has been paid to the problem of surface subsidence caused by coal mining, especially the loess mining area, whose geomorphology is complex and the surface is covered by thick loess soil, so the law of mining subsidence has its particularity. The traditional probabilistic integral prediction model is not suitable for loess mining area. According to different geological conditions, it is of great significance to develop an effective and practical analysis system for mining damage prediction. Combined with the study of mining subsidence under conventional conditions and the theoretical prediction model of double-layer medium in loess mining area, the prediction methods of mining subsidence under different geological conditions are discussed. At the same time, based on the mining subsidence theory and soil mechanics principle, the critical tensile horizontal deformation value needed for surface mining cracks and the prediction formula of mining crack depth are derived. Based on the above theoretical research, a software of mining damage prediction system is developed by using C # language in VS2010 platform, which realizes the automation and visualization of mining subsidence prediction and mining damage analysis. The system can generate 2-D curves, isoline maps, three-dimensional simulated maps of moving and sinking basins, and can analyze the damage of surface mining and predict the range of mining fractures. In addition, the system also designed for the loess mining area prediction analysis function. Combined with the characteristics of the prediction system, an example study and analysis is carried out. First, the parameters of the displacement deformation prediction are obtained by using the measured data, and then in the developed mining damage prediction analysis system, The value and distribution of surface movement and deformation are studied, the sufficiency of mining face is discussed experimentally, and the three-dimensional effect of moving subsidence basin is simulated. The predicted distribution range of fractures is automatically generated by using the function of fracture prediction and analysis of the system. The experimental study not only verifies the correctness of fracture prediction theory and the practicability of developed prediction system, but also provides a typical example of practical engineering for mining subsidence in loess mining area. To provide reference for other relevant researchers and project implementers.
【学位授予单位】：西安科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD327
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