High-precision exploration and evaluation method for coal seam floor branch drill holes

The invention provides a coal seam floor branch drill hole high-precision exploration evaluation method, and relates to the technical field of coal seam exploration, and the method comprises the following steps: S1, drill hole track evaluation, including a first-level index drill hole plane spacing and a target layer drilling rate, and the evaluation content specifically evaluates a branch hole track from two aspects of a plane and a profile of a branch hole; s2, probing and evaluating: after the drilling track evaluation meets the evaluation requirement, evaluating the condition in the rock stratum, and probing a collapse column and a vertical concealed (including) water guide structure; according to the method, coal seam floor limestone ground advanced area exploration treatment effect evaluation indexes are established, the indexes comprise three evaluation items including a drilling track, exploration evaluation and grouting treatment evaluation and an encryption verification item, and the indexes are sub