中文摘要：

为充分利用现有资料，提高煤层底板水害评价精度，以四台矿8号煤层底板寒灰水害评价为例，提出将GIS技术应用于煤层底板水害评价中。在建立基于GIS的影响煤层底板突水的隔水层厚度和水压两大因素专题层图基础上，通过专题图的叠加分析，得出煤层底板突水系数值，进行突水危险性评价分区，并研发了基于GIS的底板突水评价信息系统。进一步将得出的评价分区与传统基于钻孔点突水系数值的突水系数法评价分区相比可知，基于GIS数据分析的突水系数法评价更吻合实际。因此，GIS技术在煤层底板水害评价中的应用，为有效防治煤层底板水害提供了技术支持。

英文摘要：

In order to make full use of the existing data and improve the accuracy of evaluation, GIS technology was applied in the evaluation of coal floor water inrush, in the evaluation of No. 8 coal seam floor Cambrian limestone water in Sitai mine. First, the two thematic maps of aquifuge thickness and water pressure affecting coal floor water inrush were established based on GIS. Secondly, the value of water-inrush coefficient was obtained in overlay analysis, and the result was divided into two types. Then, the evaluation information system of floor water inrush based on GIS is developed. Further, the results of GIS-based evaluation was compared with that based on the traditional drilling point, which showed the water inrush coefficient method based on GIS was more consistent with reality. The successful application of GIS technology in coal floor water inrush provides technical support for effective control of coal seam floor water inrush.