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投稿时间：2024-05-27 修订日期：2024-06-20
投稿时间：2024-05-27 修订日期：2024-06-20
中文摘要: 目的：天井工程是国防和民用地下建筑中不可或缺的部分，但凿岩质量的好坏直接影响到中深孔爆破成井的效果，由于炮孔偏斜在现场实施中不可避免，因此，需开展考虑炮孔偏斜的中深孔爆破成井方案优化研究。方法：通过精确测量炮孔的深度和位置，实现了炮孔三维模型构建，从而减少了炮孔位置的不确定性。基于不同高度的炮孔剖面图，对爆破成井方案进行了优化，将一次爆破成井修改为分次爆破成井，第一次爆破高度约3~4m，第二次爆破高度约7m，并根据炮孔实测位置调整了炮孔起爆顺序。结果：现场工业试验表明，爆破后天井断面符合设计要求，整体成型良好，爆破块度均匀，考虑炮孔偏斜的中深孔爆破成井方案优化方法是切实可行的。意义：本次实践对类似矿山工程的施工具有一定的参考价值。
Abstract:Purpose: The engineering of raises is an indispensable aspect of both defense and civilian underground construction. However, the quality of rock drilling directly impacts the effectiveness of medium-deep hole blasting for raise construction. Due to the inevitable deviation of the blast hole during on-site implementation, it is necessary to conduct research on optimization of raise completion plan for medium-deep hole blasting considering borehole deviation. Method: Precise measurements of borehole depth and position have been employed to construct a three-dimensional model of the boreholes, thereby reducing the uncertainty in their positioning. Based on cross-sectional profiles of boreholes at different depths, the raise blasting scheme has been optimized, transitioning from one-time blasting to multiple blasting. The height of the first blasting is about 3-4 meters, and the height of the second blasting is about 7 meters. The blasting sequence of the blasting holes has been adjusted according to the measured positions of the blasting holes. Result: On site industrial tests have shown that the cross-section of the raise after blasting meets the design requirements, with good overall shaping and uniform blasting block size. This indicates that the optimization method for the medium-deep hole blasting raise completion plan considering borehole deviation is practical and feasible. Significance: This practice has certain reference value for the construction of similar mining projects.
keywords: raise blasting borehole deviation 3D modeling of blast holes plan optimization blasting parameters
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基金项目:“十四五”国家重点研发计划项目（2022YFC2905003）
引用文本：
侯成录,宋卫东,李佳伦,李杨,夏文浩,梁鹏亮,张少鹏.考虑炮孔偏斜的中深孔爆破成井方案优化研究[J].有色金属（矿山部分）,2025,77(2):.
夏文浩.Research on Optimization of Raise Completion Plan for Medium-deep Hole Blasting Considering Borehole Deviation[J].NONFERROUS METALS(Mining Section),2025,77(2):.
侯成录,宋卫东,李佳伦,李杨,夏文浩,梁鹏亮,张少鹏.考虑炮孔偏斜的中深孔爆破成井方案优化研究[J].有色金属（矿山部分）,2025,77(2):.
夏文浩.Research on Optimization of Raise Completion Plan for Medium-deep Hole Blasting Considering Borehole Deviation[J].NONFERROUS METALS(Mining Section),2025,77(2):.
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