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采矿爆破振动波在岩溶区的传播影响因素分析

陈学军 余思喆 宋宇 李佳明 陈议城 陈李洁 赵志永 杨越

陈学军, 余思喆, 宋宇, 等, 2018. 采矿爆破振动波在岩溶区的传播影响因素分析. 地质力学学报, 24 (5): 692-698. DOI: 10.12090/j.issn.1006-6616.2018.24.05.070
引用本文: 陈学军, 余思喆, 宋宇, 等, 2018. 采矿爆破振动波在岩溶区的传播影响因素分析. 地质力学学报, 24 (5): 692-698. DOI: 10.12090/j.issn.1006-6616.2018.24.05.070
CHEN Xuejun, YU Sizhe, SONG Yu, et al., 2018. ANALYSIS OF FACTORS INFLUENCING THE PROPAGATION OF MINING BLASTING VIBRATION WAVE IN KARST AREA. Journal of Geomechanics, 24 (5): 692-698. DOI: 10.12090/j.issn.1006-6616.2018.24.05.070
Citation: CHEN Xuejun, YU Sizhe, SONG Yu, et al., 2018. ANALYSIS OF FACTORS INFLUENCING THE PROPAGATION OF MINING BLASTING VIBRATION WAVE IN KARST AREA. Journal of Geomechanics, 24 (5): 692-698. DOI: 10.12090/j.issn.1006-6616.2018.24.05.070

采矿爆破振动波在岩溶区的传播影响因素分析

doi: 10.12090/j.issn.1006-6616.2018.24.05.070
基金项目: 

国家自然科学基金项目 41762022

国家自然科学基金项目 41262011

广西自然科学基金项目 2017GXNSFBA198052

广西岩溶动力学重点实验开放课题基金 KDL201604

详细信息
    作者简介:

    陈学军(1961-), 男, 博士, 教授, 主要从事岩土工程、灾害地质与环境工程方面的教学和研究工作。E-mail:cehnxj@glut.edu.cn

    通讯作者:

    宋宇(1981-), 女, 硕士, 讲师, 主要从事岩土工程方面的教学科研工作。E-mail:songyu119@126.com

  • 中图分类号: P642.5

ANALYSIS OF FACTORS INFLUENCING THE PROPAGATION OF MINING BLASTING VIBRATION WAVE IN KARST AREA

  • 摘要: 为研究不同情况下爆破振动强度衰变规律和振动对岩溶塌陷的影响,为当地矿山合理开采及减少地面塌陷灾害的发生提供可靠依据,对湖南水口山铅锌矿区进行现场爆破振动测试,并利用古丹铅锌矿实测数据作对比分析;试验矿区共布设4条测线,接收8组爆破振动数据。采用萨道夫斯基修正公式对采集的数据进行计算,以爆破产生的振动波频率及振动速度作为测试指标,对实测数据进行提取、处理,确定爆破振动波的频率及其在介质中的传播速度及地震波引发的质点振动峰值振速。试验结果表明:采矿活动是岩溶地面塌陷的主要影响因素;爆破振动波的频率衰减强度与其在岩土体中的传播距离和断层有关,振动波的传播速度受到岩土体性质、岩层结构特征、岩层走向等因素的影响。

     

  • 图  1  水口山测线布线图

    Figure  1.  Layout of survey lines in Shuikoushan Pb-Zn mine area

    图  2  古丹铅锌矿测线布线图

    Figure  2.  Layout of survey lines in Gudan Pb-Zn mine area

    图  3  水口山Ⅳ号测线接收3#爆破点的主频率分析图

    Figure  3.  Main frequency analysis of 3# explosive point of line Ⅳ in Shuikoushan

    图  4  水口山Ⅳ号测线接收4#爆破点的主频率分析图

    Figure  4.  Main frequency analysis of 4# explosive point of line Ⅳ in Shuikoushan

    图  5  水口山Ⅱ号测线接受1#爆破点的主频率分析图

    Figure  5.  Main frequency analysis received by 1# explosive point of line Ⅱ in Shuikoushan

    图  6  水口山Ⅱ号测线接收2#爆破点的主频率分析图

    Figure  6.  Main frequency analysis diagram received by 2# explosive point of line Ⅳ in Shuikoushan

    图  7  水口山Ⅰ号测线接收2#爆破点的传播速度分析结果图

    Figure  7.  Main frequency analysis diagram received by 2# explosive point of line Ⅰ in Shuikoushan

    图  8  古丹Ⅲ号测线爆破地震波传播速度分析图

    Figure  8.  Seismic wave propagation velocity analysis of line Ⅲ in Gudan

    图  9  古丹Ⅰ号测线爆破地震波传播速度分析图

    Figure  9.  Seismic wave propagation velocity analysis of line Ⅰ in Gudan

    图  10  古丹Ⅱ号测线爆破地震波传播速度分析图

    Figure  10.  Seismic wave propagation velocity analysis of line Ⅱ in Gudan

    图  11  古丹Ⅰ、Ⅱ号测线爆破振动波传播示意图

    Figure  11.  Vibration wave propagation schematic diagram of line Ⅰ and line Ⅱ in Gudan

    图  12  推测与实测结果对比图

    Figure  12.  Comparison of the predicted and measured results

    图  13  水口山铅锌矿Ⅱ号测线接2#爆破点的峰值振速与爆心距关系散点图

    Figure  13.  Peak vibration velocity and epicenter distance received by 2# of line Ⅱ in Shuikoushan

    图  14  古丹铅锌矿Ⅳ号测线接收到的峰值振速与爆心距关系散点图

    Figure  14.  Peak vibration velocity and epicenter distance of line Ⅳ in Gudan

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出版历程
  • 收稿日期:  2018-05-21
  • 修回日期:  2018-08-04
  • 刊出日期:  2018-10-01

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