@article{Chen2026, 
author = {Hui Chen and Xiaodan Zhang and Xiaoyong Tong},
title = {Study on Efficient Well Formation by Digital Electronic Detonator Deep Hole Blasting in Loose and Soft Rock Body},
year = {2026},
journal = {Journal of Xinjiang University(Natural Science Edition in Chinese and English)},
volume = {43},
number = {1},
pages = {106-115},
keywords = {deep hole blasting, efficient well formation, a loose rock mass, digital electronic detonator},
url = {https://www.sciopen.com/article/10.13568/j.cnki.651094.651316.2025.08.30.0002},
doi = {10.13568/j.cnki.651094.651316.2025.08.30.0002},
abstract = {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.}
}