为了保障煤矿安全生产，进一步提高煤矿瓦斯防治能力，基于煤层瓦斯流动理论，从瓦斯有效抽采半径分析入手，建立数学模型，确定了穿层钻孔精细设计布孔控制关键指标；运用计算机建模技术对钻孔进行精细化验算，完成了煤矿井下底板穿层预抽瓦斯钻孔布置的精细化智能设计系统的开发，该系统能精准感知，并自主对给定区域钻孔复合验算，实现了钻孔设计过程中少人化、精细化，并与传统设计进行了对比分析。研究表明：采用精细化智能设计钻孔，最大限度地实现了煤体内钻孔轴线等密度分布，使钻孔工程比传统设计省工；可实现海量底板穿层钻孔的智能化设计，使钻孔施工抽采煤层瓦斯效果好，钻孔施工难度降低，显著提升了煤矿瓦斯防治能力和管理水平。

In order to ensure the safety of coal mine production and further improve the ability of coal mine gas control, based on the theory of gas flow in coal seam, starting with the analysis of effective extraction radius of gas, a mathematical model is established to determine the key indexes of fine design layout control of through-layer holes. The computer modeling technology is used to carry out the fine checking calculation of the borehole, and the development of the fine intelligent design system for the borehole distribution design of the coal seam gas pre-pumping in the bottom layer of the coal mine is completed. The system can accurately perceive and independently check the borehole compound calculation in the given area, so as to realize the less human and fine drilling design process, and the analysis and comparison with the traditional design are carried out. The research shows that the use of fine intelligent drilling design can maximize the equal density distribution of the borehole axis in the coal body, and make the drilling project less than the traditional design. It can be seen that the intelligent design of massive floor through-layer drilling makes the drilling construction and coal seam gas extraction effect is good, the construction difficulty is reduced and the coal mine gas prevention and control ability and management level are significantly improved.