东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2006, Vol. 27 ›› Issue (4): 450-453.DOI: -

• 论著 • 上一篇    下一篇

露天转地下开采中顶柱稳定性分析

马天辉;唐春安;杨天鸿;林鹏;   

  1. 东北大学资源与土木工程学院;东北大学资源与土木工程学院;东北大学资源与土木工程学院;清华大学水利水电工程系 辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004;北京100084
  • 收稿日期:2013-06-23 修回日期:2013-06-23 出版日期:2006-04-15 发布日期:2013-06-23
  • 通讯作者: Ma, T.-H.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50504003,50174013);;

Analysis on stability of top pillar when coming into underground mining from open-pit

Ma, Tian-Hui (1); Tang, Chun-An (1); Yang, Tian-Hong (1); Lin, Peng (2)   

  1. (1) School of Resources and Civil Engineering, Northeastern University, Shenyang 110004, China; (2) Department of Hydraulic Engineering, Tsinghua University, Beijing 100084, China
  • Received:2013-06-23 Revised:2013-06-23 Online:2006-04-15 Published:2013-06-23
  • Contact: Ma, T.-H.
  • About author:-
  • Supported by:
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摘要： 结合唐钢石人沟铁矿的具体地质条件、采矿条件、岩体的结构特征及力学性质测试,首次借助MSC.PATRAN和MSC.NASTRAN三维数值分析软件对整个矿区进行建模分析,通过反复调整模型参数,分别根据提出的9种设计方案进行模拟分析对比,最后得出顶柱设置在-6 m水平(方案9)基本可以稳定.同时提出确保顶柱稳定的详细的采矿方案、措施、建议以及有效地防止矿体突冒控制技术措施,为其他矿山露天转地下开采中的顶柱尺寸留设提供可靠的分析方法和科学依据.

关键词: 稳定性, 露天转地下开采, 顶柱, 数值分析, 突冒

Abstract: Based on the site-specific conditions, the physico-mechanical properties and structural features of rock and mining conditions, the 3-D numerical analysis softwares MSC. PATRAN and MSC. NASTRAN were first used to model wholly the Shirengou Iron Mine. Readjusting repeatedly the parameters of the models, the 9 proposed schemes were simulated and analyzed individually and compared with each other. It was concluded that the 9th scheme can make the top pillar stable, and an optional mining program and some measures were proposed in detail to control effectively the spalling and caving of rock mass. It also provided a reliable analytic method and scientific evidence for choosing reasonable dimension of top pillar when coming into underground mining from open-pit.

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