东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2017, Vol. 38 ›› Issue (10): 1486-1490.DOI: 10.12068/j.issn.1005-3026.2017.10.024

• 资源与土木工程 • 上一篇    下一篇

急倾斜厚大矿体矿房阶段爆破技术

翟会超1， 任凤玉1， 南世卿2   

  1. (1. 东北大学 资源与土木工程学院， 辽宁 沈阳110819; 2. 河北钢铁集团矿山设计有限公司， 河北 唐山063000)
  • 收稿日期:2016-03-09 修回日期:2016-03-09 出版日期:2017-10-15 发布日期:2017-10-13
  • 通讯作者: 翟会超
  • 作者简介:翟会超(1981-)，男，吉林四平人， 东北大学博士后研究人员； 任风玉(1956-)，男，内蒙古敖汉旗人，东北大学教授，博士生导师.
  • 基金资助:
    国家重点研发计划项目(2016YFC0801601).

Stage Blasting Technology of Large and Thick Steeply Inclined Orebody

ZHAI Hui-chao1， REN Feng-yu1， NAN Shi-qing2   

  1. 1. School of Resources & Civil Engineering， Northeastern University， Shenyang 110819， China; 2. Hebei Iron Steel Group Mining Design Co.， Ltd.， Tangshan 063000， China.
  • Received:2016-03-09 Revised:2016-03-09 Online:2017-10-15 Published:2017-10-13
  • Contact: ZHAI Hui-chao
  • About author:-
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摘要： 针对司家营南区大规模落矿的安全性问题，提出阶段凿岩侧向爆破方案.该方案包括利用上向扇形炮孔爆破形成堑沟，下向垂直深孔爆破侧向崩矿，具有工程量小、机械化程度高、管理简单等优点.利用FLAC3D研究阶段爆破技术，对塑性区、监测点振速和应力场的动态模拟计算验证了大规模爆破起爆顺序的合理性和减震性，以及爆破对围岩或充填体的非破坏性.同时，研究VCR法开掘切割天井技术，采取中心与交错正菱形布设炮孔，孔间分5段起爆，保证了阶段爆破自由空间的形成.

关键词: 急倾斜厚大矿体, 垂直深孔爆破, 数值模拟, FLAC3D, VCR法

Abstract: Aiming at the safety problem of Sijiaying southern district large-scale mining district， a lateral drilling blasting scheme including formed trench by the fan hole and lateral caving by the vertical deep hole was proposed， which has characteristics of a small amount of engineering， high degree of mechanization and simple management， etc. In addition， the rationality and shock absorption of large scale blasting initiation order and the non-destructive effect of blasting on rock and filling body were verified through dynamic simulation on the plastic zone， monitoring vibration velocity and stress field by FLAC3D. Meanwhile， the construction technology of cutting patio using VCR method， adopting center and cross diamond pattern for designing the hole， and using 5 sections of initiation among holes were studied to ensure the formation of blasting free space.

Key words: large and thick steeply inclined orebody, vertical deep hole blasting, numerical simulation, FLAC3D, VCR method

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