神南矿区采煤导水裂隙带高度预测

Prediction on the height of water-flowing fractured zone in southern Shenmu mine

为研究神南矿区开采中覆岩的破坏上限及其是否会导通上覆含水层,指导矿区生产规划和采煤方法设计,采用钻孔智能全景成像测井,并通过规范经验公式、相似模拟和数值模拟及建立的本地区经验公式等方法分析采动条件下覆岩破坏程度。结果表明,导水裂隙带高度与煤层采厚关系密切,呈非线性关系,根据本地区实测数据建立的统计公式在预测导水裂隙带高度时更加逼真。为减少矿区煤层开采对地下水资源的破坏,应控制煤层合理采高、推行保水采煤技术。

In order to determine the upper limit of water flowing fractured zone,intelligent panorama imaging technology is used in ground surface boreholes. Furthermore,empirical formula,physical and numerical simulations are also used to observe the water flowing fractured zone in the mine. The result showed： there is a nonlinear relationship between the height of water flowing fractured zone and coal thickness,and the formula established by the measured data in the region is more realistic for predicting the height of water flowing fractured zone,which provides a strong support for the development of coal mining with water protect techniques in the region.