装药结构对爆破振动能量传递的影响研究Effect of Charge Structure on Energy Transfer of Blasting Vibration
苟倩倩,赵明生,张光雄,池恩安,余红兵,余伟成
摘要(Abstract):
针对某石方钻爆工程单耗大、临近建(构)筑物振动响应较大问题,现场进行了连续耦合装药、径向不耦合装药、中部空气间隔装药及水不耦合装药的四组爆破试验。将测得的试验数据进行基于CEEMDAN的光滑降噪模型去噪,以各频带与原始信号的相关系数及均方误差为指标,筛选出优势分量,通过计算其能量值来判断4种装药结构下爆破振动的破坏力大小,并且对比分析了4种工况下岩体爆破块度,结果表明:空气不耦合装药爆破振动速度-时程曲线携带的能量最小、破坏力最小,水不耦合装药次之,但水不耦合装药爆破能有效降低岩石大块率及粉尘危害。
关键词(KeyWords): 装药结构;爆破振动;信号降噪;能量传递
基金项目(Foundation): 贵州省高层次创新型人才培养(百层次)-黔科合人才(2016)4030号;; 2017年新疆维吾尔自治区天池百人计划
作者(Author): 苟倩倩,赵明生,张光雄,池恩安,余红兵,余伟成
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