露天矿小药量近距离爆破高程效应探究

发布时间：2018-04-05 10:22

本文选题：爆破振动　切入点：萨道夫斯基公式　出处：《矿业研究与开发》2017年07期

【摘要】：萨道夫斯基公式主要应用于大药量爆破,在工程实践中,该公式的参数k和a变化范围较大,难以选取,通常认为萨道夫斯基公式仅用于大药量爆破且并未考虑高程对爆破振速的影响,很多学者提出了修正公式,基于这思路,通过现场小药量实验对不同高程的爆破质点振速进行回归分析,验证了萨道夫斯基公式适用于小药量爆破并且考虑了高程效应。在实际工程应用中,应当先根据工程地质情况确定相关系数值,再使用萨道夫斯基公式或者修正公式就会比较准确。
[Abstract]:The Saadolski formula is mainly used in large explosive blasting. In engineering practice, the parameters k and a of the formula vary greatly, so it is difficult to select.It is generally believed that the Sadolski formula is only used for large explosive blasting and does not take into account the influence of height on the blasting vibration velocity. Many scholars have proposed a modified formula based on this idea.By regression analysis of the vibration velocity of blasting particles at different heights, it is proved that the Sadolski formula is suitable for small explosive blasting and the height effect is considered.In the practical engineering application, the correlation coefficient should be determined according to the engineering geological conditions first, and then it will be more accurate to use the Sadolski formula or the modified formula.
【作者单位】：江西理工大学资源与环境工程学院;江西国泰五洲爆破工程有限公司;紫金矿业集团股份有限公司;
【分类号】：TD235.1

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