| 刘寒鹏.露天矿排土场高边坡动力稳定性研究[J].地质与勘探,2010,46(4): |
| 露天矿排土场高边坡动力稳定性研究 |
| A study on Dynamic Stability of Slopes at Dump Sites of Open-Pit Mines |
| 投稿时间：2009-08-26 修订日期：2010-06-18 |
| DOI： |
| 中文关键词: 露天矿 排土场 稳定性 动力响应 |
| 英文关键词: open-pit mine,dump site,stability,dynamical response |
| 基金项目:天津市科委岩土工程重点实验室建设基金项目(编号:06SYSYJC14900)资助 |
|
| 摘要点击次数: 2183 |
| 全文下载次数: 1541 |
| 中文摘要: |
| [摘要]露天矿生产采用爆破手段,除采矿形成边坡外,废矿堆积也常常形成排土场高边坡,现场
实测露天矿排土场在生产爆破作用下的振动速度,将实测加速度数据推导得到的水平加速度值,线性插
值到每一个土条中,利用等效静力法对边坡在爆破动力作用下的稳定性进行了计算及评价,与传统等效
静力法相比,此方法更接近实际振动加速度分布情况。同时,采用模态叠加法,通过有限元动力响应分
析的手段,对露天矿排土场高边坡表面不同部位土体位移分布规律进行了分析,最终得到研究边坡在生
产爆破动荷载作用下不会产生整体滑移,但在坡面顶部表层或浅层会产生一定深度的拉张裂缝,在重力
和爆破动力的作用下裂缝逐渐加深,到一定深度时,表层矿渣会顺坡滑下产生表面滑塌型破坏的结论。 |
| 英文摘要: |
| Abstract:Using advanced 3D visualization models to transform traditional mineral exploration maps is an important research direction as well as an ef鄄
fective way to improve the quantification and precision of mineral exploration maps郾According to the workflow of traditional methods of mineral reserve es鄄
timation, we took mine 3D geological modeling and mineral reserve estimation mapping as a starting point to explore a new method for the integration of 3D
geological modeling and mineral resource exploration mapping郾In order to verify this method, we have applied this method to some real mines郾The results
show that this method can effectively solve those problems of 3D geological model updating and dynamic map compilation of mineral resource exploration in
continuous exploration and exploitation processes of the mines郾This method has strong practicality and realizes the primary integration of 3D geological
modeling and mineral resource exploration mapping, which can effectively avoid the geological inconsistencies in 2D plane maps and improve the efficiency
and accuracy in 3D geological modeling and mineral reserve estimation mapping |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
