Hole interference prevention method for directional drilling of underground coal mine

The invention relates to a hole interference prevention method, belongs to the field of geological prospecting, in particular to a hole interference prevention method for directional drilling of an underground coal mine. The method comprises the steps that firstly, a zero-point drill hole is determined, and an absolute coordinate system comprising all the drill holes in the same working face is established; then the inclination angle, the azimuth angle and the tool face angle of a measurement point with hole drilling finished are selected as input parameters, a hole drilling track prediction model is established based on a double-target twin support vector regression algorithm, and the absolute coordinates of a three-dimensional space of the next measurement point are predicted; and finally, slicing is conducted perpendicularly to the X-axis with the prediction point as a target point, the distances between all the slicing points and the target point are worked out, and whether the hole interference risk exists or not is judged according to the distances. The hole interference prevention method is easy to implement, reliable in result and capable of guiding on-site drilling construction in real time and has engineering application value.