...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal Of The South African Institute Of Mining & Metallurgy >Investigation and FEM analysis of mineshaft rope safety platforms in underground mining
【24h】

Investigation and FEM analysis of mineshaft rope safety platforms in underground mining

机译：地下采矿中型饲养绳安全平台的研究和有限元分析

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

Both Polish and European hard coal mining nowadays faces the need of deepening shafts (significantly in some cases) or extending mining hoists, due to the exploitation of deeper coal deposits.In order to protect the crew working within a shaft, rope safety platforms (artificial shaft bottoms) are employed. Old solutions, based on rigid steel constructions with the external damping layers made of e.g. slag and up to several tens of metres long, are intended to absorb the energy of approximately 51 mass falling a distance of 700 m. However, current requirements often assume a drop of 201 to a depth of 1000 m or even more.More modern safety platform structures, made of one or more support rings with steel ropes stretched on them (rope platforms), are more compact (up to 3 m high) and lighter than traditional solutions. Multi-ring rope platforms with additional damping layers filling the empty spaces between the ropes are able to absorb sufficient energy to meet the current requirements.Single- and double-ring platforms have been employed in Poland to absorb the energy of approximately 51 dropping to a depth of 900 m. They have been developed (and some have already been implemented) by SADEX Ltd. and are protected by various patents and patent applications.This paper presents a design for a triple-ring platform structure with six rope nets. FEM analysis was used to model the performance of the platform. According to the simulation, a 201 mass falling from 1000 m (>100 m/s) will destroy all the nets, breaking most of the ropes and deforming the support steel boards placed on the nets, but will ultimately be stopped by the platform, as its kinetic energy falls to zero.
机译：如今，波兰和欧洲硬煤矿井都面临着深化轴的需要（在某些情况下显着）或延长采矿升降机，由于深层煤炭存款的开采。为了保护船员在轴内工作，绳索安全平台（人为）采用轴底部。旧解决方案，基于刚性钢结构与外部阻尼层制成的刚性钢结构。炉渣和高达几米长的，旨在吸收大约51质量的能量，距离距离为700米。然而，目前的要求通常假设201到1000米甚至更多的深度甚至更多。More现代安全平台结构，由一个或多个带有钢绳索（绳索平台）的钢绳索制成的，更紧凑（最多比传统解决方案高3米高）和轻。具有额外阻尼层的多环绳平台填充绳索之间的空的空间可以吸收足够的能量以满足当前要求。在波兰采用了电流要求，以吸收大约51滴到a的能量深度为900米。 Sadex Ltd.已经开发了（有些已经实施）并受到各种专利和专利申请的保护。这篇论文为三环平台结构有六个绳索的设计。有限元分析用于模拟平台的性能。根据模拟，201辆大幅下降从1000米（> 100米/米）会破坏所有网，打破大部分绳索并使钢板放在网上的支撑钢板变形，但最终将由平台停止，随着其动能降至零。

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