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| Technology application of deep hole pre-splitting blasting through collapse column |
| Wang Lun |
| Shanxi Gaohe Energy Co., Ltd, Changzhi 047100, China |
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Abstract Aiming at the problems of low efficiency and high labor intensity during the passage of the Xw43 collapse column by the shallow hole blasting method at the W3305 working face of Gaohe Coal Mine, a technical solution for deep hole pre-splitting blasting to break the collapse column rock was proposed. By refining the construction process, optimizing technical parameters, pre-setting technology and security measures, the safe and efficient implementation of the project was guaranteed. The results showed that the deep hole pre-splitting blasting method was an effective method for the working face to pass the collapse column. Compared with the traditional shallow hole blasting method, the propulsion efficiency was higher and the equipment loss rate was lower. However, strict technical and safety protection measures should be formulated. It can promote the application of deep-hole pre-splitting blasting technology in the problem of safe and efficient working face passing through the collapsed column, providing a reference for optimizing design parameters.
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| 1 ] 尹尚先，武 强，王尚旭. 北方岩溶陷落柱的充水特征及水文地质模型[ J ]. 岩石力学与工程学报，2005（ 1 ）：77 - 82.
[ 2 ] 李文斌. 综放工作面过陷落柱开采技术[ J ]. 能源与节能，2019（ 6 ）：99 - 100.
[ 3 ] 李晋平，肖亚宁，万世文. 综放工作面遇陷落柱高效开采技术[ J ]. 煤炭科学技术，2006（ 10 ）：36 - 38.
[ 4 ] 张育恒. 综放工作面过陷落柱开采技术探讨[ J ]. 煤矿开采，2012，17（ 4 ）：24 - 26，29.
[ 5 ] 殷秀文，徐美玲，孙占杰. 深孔预裂爆破技术在工作面过陷落柱的应用[ J ]. 山西冶金，2019，42（ 3 ）：41 - 42，45.
[ 6 ] 刘 冲. 综采工作面过陷落柱深孔预裂爆破技术优化研究[ J ]. 煤炭工程，2021，53（ 1 ）：84 - 88.
[ 7 ] 孙 涛. 镇城底矿本煤层近水平探放水钻孔孔斜规律分析[ J ]. 煤炭与化工，2020，43（ 7 ）：53 - 56. |
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