1.新疆大学 地质与矿业工程学院,新疆 乌鲁木齐 830017
2.新疆地质工程有限公司,新疆 乌鲁木齐 830023
陈辉(1985—),男,博士,副教授,主要从事矿山开采与安全的研究,E-mail: chenhui@xju.edu.cn.
收稿:2025-08-30,
修回:2025-12-20,
录用:2025-12-27,
纸质出版:2026-01-25
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陈辉,张晓丹,佟晓勇.松软岩体数码电子雷管深孔爆破高效成井研究[J].新疆大学学报(自然科学版中英文),2026,43(1):106-115.
Chen Hui,Zhang Xiaodan,Tong Xiaoyong. Study on Efficient Well Formation by Digital Electronic Detonator Deep Hole Blasting in Loose and Soft Rock Body[J]. Journal of Xinjiang University(Natural Science Edition in Chinese and English),2026,43(1):106-115.
陈辉,张晓丹,佟晓勇.松软岩体数码电子雷管深孔爆破高效成井研究[J].新疆大学学报(自然科学版中英文),2026,43(1):106-115. DOI: 10.13568/j.cnki.651094.651316.2025.08.30.0002.
Chen Hui,Zhang Xiaodan,Tong Xiaoyong. Study on Efficient Well Formation by Digital Electronic Detonator Deep Hole Blasting in Loose and Soft Rock Body[J]. Journal of Xinjiang University(Natural Science Edition in Chinese and English),2026,43(1):106-115. DOI: 10.13568/j.cnki.651094.651316.2025.08.30.0002.
针对松软岩体条件下传统分段爆破作业效率低、安全性差、成本高等问题,开展了数码电子雷管深孔爆破高效成井技术研究.以备战铁矿6号切割井为工程背景,针对19.3 m切割井深的松软破碎岩体,创新设计两次分段上向深孔快速成井爆破方案.通过理论计算确定了孔间延时50 ms、层间延时300 ms等关键爆破参数,采用大直径空孔127 mm作为补偿空间,装药孔直径76 mm,合理设计了炮孔布置和起爆顺序.现场试验结果表明:爆破后顶断面规整,顶板完整性好,爆破块度均匀,实测高度达到设计要求.技术经济分析显示:相比普通法掘进,深孔爆破法成本降低53%,节约时间6天,施工效率显著提高.2次分段爆破有效减少了对破碎岩体的频繁扰动,避免了岩石垮落,结合数码电子雷管的精确起爆控制,大幅提升了作业安全性.
To address the low efficiency
poor safety
and high costs associated with traditional segmental blasting in soft rock conditions
research is conducted on high-efficiency deep-hole blasting techniques using digital electronic detonators. Taking the No. 6 cutting shaft at the Beizhan iron ore mine as the engineering context
an innovative two-stage upward-directed deep-hole rapid shaft sinking blasting plan is designed for the 19.3-meter-deep cutting shaft in soft
fractured rock. Through theoretical calculations
key blasting parameters are determined
including a 50-millisecond inter-hole delay and a 300-millisecond inter-layer delay. A large-diameter empty hole (127 mm) is utilized as a compensation space
with a charge hole diameter of 76 mm. The blast hole layout and initiation sequence are rationally designed. Field test results demonstrate: the top surface remains well-defined after blasting
with good roof integrity and uniform block size. The measured height meets design requirements. Technical-economic analysis reveals: compared to conventional tunneling methods
deep-hole blasting reduces costs by 53%
saves 6 days of construction time
and significantly improves operational efficiency. The two-stage blasting approach effectively minimizes frequent disturbance to the fractured rock mass
preventing rock falls. Combined with precise detonation control using digital electronic detonators
this method substantially enhances operational safety.
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