• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Australian mine ventilation conference >Ventilation Considerations for the New Level Mine Project Access Tunnels
【24h】

Ventilation Considerations for the New Level Mine Project Access Tunnels

机译：新矿山项目访问隧道的通风考虑

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper describes the ventilation analyses performed for the access tunnels at the New Level Mine project (NLMP) at Codelco's El Teniente operation outside of Rancagua, Chile. This new mine is anticipated to reach a final production of between 137 and 180 kt/d. Production from the NLMP is scheduled to start in the year 2017. The main access tunnels (MAT) are approximately 9 km in length, with one for personnel and supply access and the second one for ore extraction through a conveyor system. These two tunnels are a critical component of the initial stage 1 development and will be constructed independently of the existing mine workings. The tunnels were originally designed to be constructed with two tunnel boring machines. However, later analyses changed the construction approach to a conventional drill and blast technique. Because the design included two mid-tunnel ramp-to-surface connections, conventional mining methods would allow for development of the tunnels with multiple working faces to achieve a more rapid schedule. This paper presents the initial baseline considered for the ventilation design and the optimisation methodology applied by Codelco to minimise the airflow and pressure requirements of the ventilation system. Modifications to the design resulted in the addition of strategic airways and raises that could provide a saving of approximately 1 MW, when compared to the original design.
机译：本文介绍了在智利Rancagua以外的Codelco El Teniente运营中对新级矿井项目（NLMP）进行的通风分析。这个新的矿井预计将达到137至180 kt / d之间的最终产量。从NLMP的生产计划于2017年开始。主搬运隧道（MAT）的长度约为9公里，有一个用于人员和供应通路，第二个用于通过输送机系统提取矿石提取。这两个隧道是初始阶段1开发的关键组成部分，并将独立于现有的矿区工作构建。隧道最初设计用于两个隧道镗床。然而，后来分析改变了传统钻头和爆炸技术的施工方法。由于设计包括两个中间隧道斜坡到表面连接，因此传统的采矿方法将允许具有多个工作面的隧道开发，以实现更快速的时间表。本文介绍了对通风设计的初始基线和涤纶施加的优化方法，以最小化通风系统的气流和压力要求。与原始设计相比，对设计的修改导致添加战略气道和升高，这可以提供约1兆瓦的节省。

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