Gas extraction drill hole design method

The invention provides a gas extraction drill hole design method. The gas extraction drill hole design method comprises the steps that a bedding drill hole model is established, wherein drill holes of all coal seam sections are designed, and drill hole sets are formed; establishing a layer-crossing drilling model: performing drilling arrangement on a plane and/or a section, determining a two-dimensional coordinate of a drill hole, and obtaining at least one of an inclination angle, an azimuth angle and a hole depth of the drill hole; and establishing a drilling analysis effect model, wherein the drilling analysis effect model performs drilling arrangement effect analysis through a drilling arrangement effect evaluation method based on space linear density analysis and/or a drilling arrangement effect evaluation method based on space kernel density analysis. According to the method, the problem that in the prior art, the universality of gas extraction drilling design is poor is effectively solved. 本发明提供了一种瓦斯抽采