• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Mines, Metals & Fuels >Spoil dump stability in dragline mines - a case study of Jayant project
【24h】

Spoil dump stability in dragline mines - a case study of Jayant project

机译：拉铲矿的弃渣场稳定性-以Jayant项目为例

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Jayant project is one of the largest mine of India in terms of total annual excavation. During 2003-04 total coal output was 9.66 million tonnes and overburden removal was 27.30 million c. um. The project is located in Northern Coalfields Limited (NCL) where all mines are heavily mechanized large opencast mines. Mining activity is increasing in this coalfield every year and along with this, problem of dump management has come into focus. Problem of dump management has assumed importance in view of the fact that most of the coal production will continue to come from opencast mines in the coming years. There have been a many major and minor failures of dumps in Jay ant and at some other mines of NCL. Study regarding dump management gathered momentum after two major dump failures in 1994 at Jayant. Indian School of Mines (ISM) was entrusted the job of carrying out detailed scientific study for dump management. The report prepared by Prof. B K Mozumdar and Dr. P. Sen of ISM was submitted in 1997. However need was felt for further detailed study to suggest safe practices and necessary working parameters for safe dump management. A report prepared by GIPROSHAKHT and VNIMI of Russia in the year 1999 has been briefly discussed in this paper. In the meantime the project has taken various measures to maintain stability of OB dumps and these have been by and large very successful. Some of these have also been briefly discussed in this paper. As the mine is moving in dip direction, load on shovel dumpers has increased. It became essential to increase bench height for dragline workings. Also in future, as per detailed project report (DPR) of this mine, contribution from Turra seam, which is being exposed by dragline, will decrease and that from Purewa seams will increase. CMPDI has suggested in its operational plans to increase bench height from present 35-42m to up to 50m (35m + 15m) in vertical tandem. It will increase dump height.
机译：就年度总挖掘量而言，Jayant项目是印度最大的矿山之一。在2003-04年间，煤炭总产量为966万吨，覆盖层清除量为2 730万立方米。嗯该项目位于北部煤田有限公司（NCL），那里的所有煤矿都是重型机械化大型露天煤矿。该煤田的采矿活动每年都在增加，与此同时，垃圾场管理问题也成为人们关注的焦点。鉴于在未来几年中，大多数煤炭生产将继续来自露天矿，这一事实使垃圾堆管理问题变得十分重要。 Jay ant和NCL的其他一些矿场发生了许多主要和次要的垃圾倾倒事故。 1994年，在Jayant发生了两次重大的转储失败后，有关转储管理的研究势头迅猛。印度矿业学院（ISM）受托开展了针对垃圾场管理的详细科学研究。 ISM的B K Mozumdar教授和P. Sen博士编写的报告于1997年提交。但是，仍需要进行进一步的详细研究，以提出安全实践和安全倾倒管理的必要工作参数。本文主要讨论了GIPROSHAKHT和俄罗斯VNIMI在1999年编写的一份报告。同时，该项目已采取各种措施来保持OB转储的稳定性，并且这些措施总体上非常成功。其中一些也已在本文中进行了简要讨论。随着矿井向倾角方向移动，铲斗倾卸器上的负荷增加了。增加拉铲作业的工作台高度变得至关重要。同样在将来，根据该矿山的详细项目报告（DPR），拉铲正在暴露的Turra煤层的贡献将减少，而Purewa煤层的贡献将增加。 CMPDI在其运营计划中建议将纵向串联的工作台高度从目前的35-42m增加到最大50m（35m + 15m）。它将增加转储高度。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号