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昆明冶金高等专科学校学报 ›› 2016, Vol. 32 ›› Issue (5): 22-27.DOI: doi:10. 3969/j. issn. 1009一0479.2016.05.005

• 资源开发与测绘 • 上一篇    下一篇

大红山铜矿地下开采对3大沟废石场的影响

李在利,卢 萍,杨 泽   

  1. (1.玉溪矿业有限公司大红山铜矿,玉溪 653405;2.昆明冶金高等专科学校矿业学院,昆明 650033;3.昆明有色冶金设计研究院股份公司,昆明 650051)
  • 收稿日期:2016-06-22 出版日期:2016-10-30 发布日期:2016-10-30
  • 作者简介:李在利 (1982-),男,云南宣威人,工程师,工学学士,主要从事采矿工程设计及地压方面的研究。

Influence of Underground Mining of Copper Mine on 3# Major Groove Dump in Dahongshan

LI Zaili1,Lu Ping2,Yang Ze3   

  1.  (1. Yuxi Mining Co,Ltd. Dahongshan Copper Mine,Yuxi Yunnan 653405,China; 2. Faculty of Mining Engineering,Kunming Metallurgy College, Kunming 650033,China;3. Kunming Engineering&Research Institute of Nonferrous Metallurgy Co,Ltd,Kunxning 650051,China)
  • Received:2016-06-22 Online:2016-10-30 Published:2016-10-30

摘要: 地下点柱充填采矿法改变了上覆岩层的原有应力状态,可能会引起地表产生一定变形和岩层移动,进而影响到地表 3大沟废石场的安全使用与保护问题。为了确保地表废石场的稳定,采用有限差分程序 FLAC3D模拟地下矿体开采对地表废石场的影响,通过模拟结果表明:岩层移动是一个自下而上传递的动态过程,地下开采对地表废石场产生的下沉变形很小,仅为 38cm,同时地表未产生塑性扰动区,说明 3大沟废石场是处于安全稳定的状态,研究结果为地表 3大沟废石场的设计和安全建设提供了指导性的依据。

关键词: 地下开采, 废石场, 稳定性, 地表, 点矿柱

Abstract: The filling mining method of the underground point column changes the original stress state of overlying strata,which may lead to the surface distortion and movement of rock layer. Then,safe use and protection problems of 3# large ditch waste rock field will he affected. In order to ensure the stability of the surface waste rockfill,the finite difference program FLAC3 D was used to simulate the effect of underground orebody mining on the surface waste rockfill.  The simulation results show that the movement of strata is a dynamic process from bottom to top,and the subsidence deformation of the surface waste rock is only 3. 8 cm,and the surface does not produce plastic disturbance zone,which illustrates 3# ditch waste rock field is in a safe and stable state. The results provide guidance for the design and construction of 3# large ditch waste rock field.

Key words: underground mining, dump, stability, surface, point pillar

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