文献知网节
  • 记笔记

Analysis on the Action Mechanism of the Controlling Factors of the Mining Fissures Development

Chao ZHENGLan YUNing SUNJiangyi HEBiyang FENG

School of Energy Engineering,Long Dong University

摘要:In order to analyze the action mechanism of the controlling factors of mining fissures development,it is found that mining thickness is the most key factor affecting mining fissures development,which is generally positively related to the height of mining fissures development.The width of working face is the minimum size that determines the development of mining fissures,and the essence of face size effect is the full degree of mining.In the analysis of the properties and structural characteristics of the overlying rock,the overlying rock is divided into several parts with the key layer control as the unit,and the key layer will be the key to affect the development of mining fissures,and the mining fissures have the phenomenon of retardation and jump along with the breaking movement of the key strata.For the key strata,the thin soft layer above or the thick soft layer below is better for the stability of the key layer and restraining the development of mining fissures,that is,thin soft high position-small load,thick soft low position-filling well.The development shape of mining fissures is similar to a trapezoid which moves forward from small to large.With the re-compaction of the caving zone and the separated fissures,a downward curved surface appears in the middle of the trapezoid,which is similar to the inverted funnel of the bedrock in the "quasi-hyperbolic" model.
会议名称:

The 7th Academic Conference of Geology Resource Management and Sustainable Development

会议时间:

2019-12-29

会议地点:

中国北京

  • 专辑:

    工程科技Ⅰ辑

  • 专题:

    矿业工程

  • DOI:

    10.26914/c.cnkihy.2019.054946

  • 分类号:

    TD313

  • 手机阅读
    即刻使用手机阅读
    第一步

    扫描二维码下载

    "移动知网-全球学术快报"客户端

    第二步

    打开“全球学术快报”

    点击首页左上角的扫描图标

    第三步

    扫描二维码

    手机同步阅读本篇文献

  • HTML阅读
  • CAJ下载
  • PDF下载

下载手机APP用APP扫此码同步阅读该篇文章

下载:4 页码:80-85 页数:6 大小:269k

引文网络
  • 参考文献
  • 引证文献
  • 共引文献
  • 同被引文献
  • 二级参考文献
  • 二级引证文献
  • 批量下载
相关推荐
  • 相似文献
  • 读者推荐
  • 相关基金文献
  • 相关法规
  • 关联作者
  • 相关视频