雷振,王雁冰,付代睿,黄晢航,张臣

• 1:贵州理工学院矿业工程学院
• 2:中国矿业大学(北京)力学与土木工程学院
• 3:中国矿业大学(北京)隧道工程灾变防控与智能建养全国重点实验室
• 4:贵州津建建筑工程有限公司

摘要(Abstract)：

随着破岩技术的更新发展，传统炸药破岩方法的弊端日益凸显。液氧储能破岩方法作为新型的非炸药破岩方法，其爆破反应机理不明确，相关科学问题有待研究。为进一步确定液氧储能破岩爆破特点，解决工程现场经验法应用难题，开展了液氧储能爆破现场振动测试，分析质点峰值振动速度变化规律及衰减特点；进行室内小尺寸药包爆破试验，明确小尺寸液氧药包爆破关键因素。相关试验结果表明：液氧储能破岩方法能有效破碎岩石，整个爆破过程中扬尘和噪音都控制在较低水平，单炮条件下3 m、6 m和10 m处测点的质点峰值振动速度分别为3.04 cm/s、1.24 cm/s和0.62 cm/s。而小尺寸药包试验则表明要想液氧药包能成功起爆，取得良好破碎效果，则必须作用以合适的充气时间、压力，避免出现爆燃等现象。充气时间和充气压力越大，药包内部吸收剂吸附液氧越多，液氧含量更容易达到饱和，药包更容易成功起爆。总的来说：液氧储能破岩方法与传统炸药方法相比具有振动小、绿色环保无污染等特点，具备在工程爆破领域进一步推广使用的明显优势。

关键词(KeyWords)： 液氧储能;岩石破碎;爆破振动;气体破岩

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划资助项目(No.2021YFC2902103);; 国家自然科学基金重点项目(No.51934001);; 中央高校基本科研业务费专项资金(No.2023JCCXLJ02)~~

作者(Author): 雷振,王雁冰,付代睿,黄晢航,张臣

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