近水平煤层开采地表移动规律研究

Study into the Rule of Surface Movement in Flat Seam Exploitation

将重庆基岩裸露地区地下开采引起的地表移动作为研究对象,探讨了近水平煤层开采条件下地表移动规律.根据矿区的地质构造和近水平煤层赋存的特点,通过建立地表位移观测站,利用长期的实测结果,综合分析了不同的回采工作面地表下沉和水平移动的观测数据,并采用MATLAB软件进行数据处理,拟合得出地表下沉和水平移动曲线及相关参数.为进行工程类比和预测,建议采用剖面函数法对实测数据进行计算机处理,有关移动变形参数应标准化.

Mining-induced surface movement in bedrock-naked area of Chongqing was investigated. Surface movement regularity in flat seam exploiting was probed into. The measurement data of surface subsidence and horizontal movement from different stope face were collected through the observation station. According to the geological structure of Songzao mining area and the characteristic of flat seam, the data were analyzed and processed through MATLAB, and the surface subsidence curves, horizontal movement curves and related parameters were also obtained. In order to give the analogism and the forecast among other engineering projects, the method of the sectional function in processing data and the standardization of the moving distortion parameters are suggested.