神南矿区采煤导水裂隙带高度预测

1.长安大学 环境科学与工程学院,陕西 西安 710054; 2.长安大学 旱区地下水文与生态效应教育部重点实验室,陕西 西安 710054; 3.陕西煤业化工技术研究院有限责任公司,陕西 西安 710065; 4.西省一八五煤田地质有限公司,陕西 榆林 719000; 5.陕西省地质环境监测总站,陕西 西安 710054

神南矿区; 导水裂隙带; 数值模拟; 覆岩破坏

Prediction on the height of water-flowing fractured zone in southern Shenmu mine
MA Xiong-de1,2,WANG Su-jian3,JIANG ZE-quan4,CHEN Tong3,LI WEN-li5

(1.College of Environmental Science and Engineering,Chang'an University,Xi'an 710054,China; 2.Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region,Ministry of Education,Chang'an University,Xi'an 710054,China; 3.Shaanxi Coal and Chemical Technology Institute Co.,Ltd.,Xi'an 710065,China; 4.No.185 Exploration Team,Shaanxi Bureau of Coal Geological Exploration,Yulin 719000,China; 5.Shaanxi Institute of Geo-Environment Monitoring,Xi'an 710054,China)

southern Shenmu mine; water flowing fractured zone; numerical simulation; overburden rock failure

DOI: 10.13800/j.cnki.xakjdxxb.2016.0509

备注

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.