Effects of torpedo blasting on rockburst prevention during deep coal seam mining in the Upper Silesi

来源 :黑龙江科技学院学报 | 被引量 : 0次 | 上传用户:wangzu03
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7<
其他文献
Although the cyclic rotation of the principal stress direction is important,its effect on the deformation behavior and dynamic properties of the reinforced soil
许多时候,人们一提起数学课就会想到枯燥的公式、机械的计算、乏味的定律。为什么会是这样呢?细心的人会发现,以往的数学教学是以教师、课堂、书本为中心的,课堂教学是一种固
Grout injection is used for sealing or strengthening the ground in order to prevent water entrance or any failure after excavation.There are many methods of gro
Experiments on rock joint behaviors have shown that joint surface roughness is mobilized under shearing,inducing dilation and resulting in nonlinear joint shear
An investigation into the pullout response of helical soil nail using finite element subroutine Plaxis 2D is presented.The numerical modelling of actual pullout
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7
In this context,two different approaches of soil liquefaction evaluation using a soft computing technique based on the worldwide standard penetration test(SPT)
The stability analysis of passive bolt-reinforced rock slopes under seismic loads is investigated within the framework of the kinematic approach of limit analys
In this study,the behavior of Gavoshan dam was evaluated during construction and the first impounding.A two-dimensional(2D) numerical analysis was conducted bas
德国:建高效“汽车充电站”网络rn专家们指出,要推动电动汽车和混合燃料车在全球的普及,除了技术突破和标准统一外,相关基础设施建设也必须同步开展,像建路边加油站一样,各国