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我国煤矿普遍采用人工“尝试逼近”的方法进行瓦斯抽采定向长钻孔设计,其效率低、精度差、设计人员工作量大,不利于矿井的安全、高产、高效。针对该技术问题,研究了兼容顺层、穿层、高位等钻孔布置方式的定向钻孔设计方法,并基于SuperMap Object.Net 6R平台开发了定向钻孔智能设计系统,实现了定向瓦斯抽采钻孔轨迹参数的自动计算和成图,为煤矿技术人员进行定向瓦斯抽采钻孔设计提供了自动化手段。在寺河矿的现场应用表明,该系统的定向钻孔单孔设计时间不超过10 min,极大地提高了定向钻孔的设计效率。
China’s coal mines generally adopt the artificial method of “trying to approximate” to conduct directional drilling with long holes for gas drainage, which has low efficiency and poor precision. The heavy workload of designers is not conducive to the safety, high yield and high efficiency of mines. In view of the technical problem, the directional drilling design method which is compatible with the drilling arrangement of bedding, strata and high is studied. Based on the SuperMap Object.Net 6R platform, a directional drilling intelligent design system is developed to realize the directional gas drainage The automatic calculation and mapping of borehole trajectory parameters provide an automatic means for coal mine technicians to conduct directional gas drainage borehole design. The field application at Sihe Mine shows that the design time of directional drilling single hole of the system does not exceed 10 min, which greatly improves the design efficiency of directional drilling.