• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国政府科技报告 >The Three-Dimensional Structural Analysis of Double-Entry and Single-Entry Coal Mines. Volume III: Three-Dimensional Finite Element Analyses of Single- and Double-Entry Portions of Sunnyside Mine No. 1
【24h】

The Three-Dimensional Structural Analysis of Double-Entry and Single-Entry Coal Mines. Volume III: Three-Dimensional Finite Element Analyses of Single- and Double-Entry Portions of Sunnyside Mine No. 1

机译：双入口单入口煤矿三维结构​​分析。第三卷：sunnyside矿1号单入口和双入口部分的三维有限元分析

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

摘要

Three-dimensional structural analyses of three instrumented areas of a deep, longwall coal mine were performed using the finite element code BMINES. The three instrumented areas include two single-entry portions and one double-entry portion of the Sunnyside No. 1 mine, Sunnyside, Utah. The finite element models simulated the sequence of excavation in each test area: the advance of the entry, installation of structural supports, retreat of the longwall, caving behind the longwall, and accumulation and loading of the gob. The structural supports considered in these finite element models include rock bolts, wood cribs, concrete cribs, steel arch sets, and chocks. Mechanical simulation of the geologic environment is achieved through elastic-perfectly plastic material models employing anisotropy to represent finely layered regions of the medium. The results of these calculations are compared with the instrumentation readings from the mine. These measurements include closures, crib loads, rock-bolt forces, and stress growth.

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