田浩,张义平,杨淞月

• 1:贵州大学矿业学院
• 2:湖北省安全生产应急救援中心

摘要(Abstract)：

为研究露天矿爆破开采地震波的变化规律,以江西德兴露天铜矿爆破开采工程为背景,运用线型萨氏公式、高程改进式与多元二次非线性回归拟合等方法对比研究振动速度矢量和,并结合速度方向性、主频全面研究振速的变化特性。结果表明:在该矿山工况下,发生高程效应但很微小,近200 m距离内垂向速度作用大于径向速度为主要因素;预测速度矢量和时,多元二次非线性回归拟合精确性为19%高于萨式公式和高程改进式;在各向速度拟合中,高程改进式拟合垂向速度精确性较好为25%,其它两向速度中多元二次非线性回归拟合比其他两种方法提高10%。建立完整的振速规律回归模型,有利于工程的技术优化与振动作用的控制。

关键词(KeyWords)： 爆破;振动速度矢量和;各向性;回归拟合;技术优化

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(50764001);; 贵州省重大基础合作专项(黔科合JZ字[2014]2005)

作者(Author): 田浩,张义平,杨淞月

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