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黄金科学技术 >

2020 , Vol. 28 >Issue 5: 727 - 733

DOI: https://doi.org/10.11872/j.issn.1005-2518.2020.05.132

采选技术与矿山管理

焦家金矿深部复杂构造下高应力岩体树脂锚索联合支护技术

  • 陈玉民 , 1 ,
  • 王成龙 1 ,
  • 李晓飞 1 ,
  • 蒋翔 1 ,
  • 赵兴东 2
展开
  • 1. 山东黄金集团有限公司，山东 济南 250101
  • 2. 东北大学采矿地压与控制研究中心，辽宁 沈阳 110819

陈玉民（1962-），男，山东淄博人，教授级高工，从事金矿管理、采矿及找矿工作。

收稿日期: 2020-07-24

  修回日期: 2020-09-15

  网络出版日期: 2020-11-05

收起

Combined Support Technology of Resin Anchor Cable for High Stress Rock Mass Under Deep Complex Structure in Jiaojia Gold Mine

  • Yumin CHEN , 1 ,
  • Chenglong WANG 1 ,
  • Xiaofei LI 1 ,
  • Xiang JIANG 1 ,
  • Xingdong ZHAO 2
Expand
  • 1. Shandong Gold Group Co. ，Ltd. ，Jinan 250101，Shandong，China
  • 2. Research Center for Mining Ground Pressure and Control，Northeastern University，Shenyang 110819，Liaoning，China

Received date: 2020-07-24

  Revised date: 2020-09-15

  Online published: 2020-11-05

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本文亮点

焦家金矿深部-750 m中段一分巷采场采用上向水平分层充填采矿法，因顶板层状节理发育且节理构造交错分布，导致顶板产生楔形体冒落与层裂破坏，采用传统的锚杆支护难以实现岩体稳定性控制的要求。通过现场工程地质调查和岩石力学试验，确定岩体质量等级为Ⅳ级。运用稳定性图表法，结合矿山实际情况，选择树脂锚索+金属网+喷射混凝土联合支护系统，从理论上计算了合理的树脂锚索支护结构参数。在-750 m中段进行工业试验，结果表明：采用树脂锚索联合支护系统后，岩体的稳定性得到显著提高，通过现场位移监测，进一步验证树脂锚索联合支护系统安全、可靠且有效，为深部复杂构造下开采矿体提供了有力的技术支撑，并积累了一定的实践经验。

本文引用格式

陈玉民 , 王成龙 , 李晓飞 , 蒋翔 , 赵兴东 . 焦家金矿深部复杂构造下高应力岩体树脂锚索联合支护技术[J]. 黄金科学技术, 2020 , 28(5) : 727 -733 . DOI: 10.11872/j.issn.1005-2518.2020.05.132

Highlights

The upward horizontal slicing and filling mining method is adopted in No.1 sub roadway of -750 m middle section in Jiaojia gold mine.Due to the development of layered joints on the roof and staggered distribution of joint structures，wedge-shaped caving and spalling failure of the roof occur.It is difficult to control the stability of rock mass with traditional bolt support.In this paper，through the field engineering geological survey and rock mechanics experiment，the rock mass quality grade is determined to be grade Ⅳ.The composite support system of resin anchor cable，metal mesh and shotcrete were selected by stability chart method，and the reasonable structural parameters of resin anchor cable support were calculated theoretically.Through the industrial test in -750 m middle section，the practical results show that the stability of rock mass has been significantly improved after using resin anchor cable support system.Through field displacement monitoring，the safety，reliability and effectiveness of resin bolt support system are further verified，which provides strong technical support for mining body under deep complex structure and accumulates certain practical experience.

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http://www.goldsci.ac.cn/article/2020/1005-2518/1005-2518-2020-28-5-727.shtml

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