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金属矿山 ›› 2023, Vol. 52 ›› Issue (11): 142-147.

• 采矿工程 • 上一篇    下一篇

缓倾斜厚大矿体采场结构参数优化研究与应用

柴 红1 郭俊超1 杨淑慧2 刘成博3
  

  1. 1. 黄河水利职业技术学院土木与交通工程学院,河南 开封 475004;2. 郑州大学水利与土木工程学院,河南 郑州 450001;3. 山西省第三地质工程勘察院有限公司,山西 晋中 030620
  • 出版日期:2023-11-15 发布日期:2024-01-02
  • 基金资助:
    河南省高等学校重点科研项目计划(编号:21A560009)。

Study and Application on the Optimization of Stope Structural Parameters of Gently Inclined Thick Orebody

CHAI Hong1 GUO Junchao1 YANG Shuhui2 LIU Chengbo3 #br#   

  1. 1. Department of Civil Engineering and Transportation Engineering,Yellow River Conservancy Technical Institute,Kaifeng 475004,China;2. Department of Water Conservancy and Civil Engineering,Zhengzhou University,Zhengzhou 450001,China;3. Shanxi The Third Institute of Geological Investigation Co. ,Ltd. ,Jinzhong 030620,China
  • Online:2023-11-15 Published:2024-01-02

摘要: 缓倾斜厚大矿体采场结构参数的确定和优化对采场安全、经济、可靠回采等工作意义重大。 以山东半 岛某地下矿井为例,基于 Mathew 稳定图表法对采场地质参数和开采参数进行计算,确定了采场尺寸范围。 利用 FLAC3D 数值模拟软件,对采场参数取值进行了进一步分析,综合经济、技术因素确定了采场参数合理取值。 研究表 明:① 在综合考虑利用围岩自身支撑能力的基础上,给出了合理的采场宽度范围为 28. 36~ 42. 17 m。 ② 利用 FLAC3D 数值模拟软件对采场进行数值模拟,通过对不同宽度方案条件下应力场与位移场的分析,明确了该采场 34 m 宽度为 最优方案。

关键词: 缓倾斜厚大矿体, 结构参数, Mathew稳定图表, FLAC3D, 矿柱

Abstract: The determination and optimization of stope structural parameters of gently inclined thick large orebody is of great significance to stope safety,economy and reliable mining. Taking an underground mine in Shandong Peninsula as the example,this paper calculates the stope geological parameters and mining parameters based on Mathew stability chart method,and determines the range of stope size parameters. Using FLAC3D numerical simulation software,the stope parameters are further analyzed,and the reasonable values of stope parameters are determined by integrating economic and technical factors. The study results show taht:① Based on the comprehensive consideration of the support capacity of surrounding rock,a reasonable stope width range of 28. 36~ 42. 17 m is given. ② Using FLAC3D numerical simulation software to simulate the stope,through the analysis of stress field and displacement field under the conditions of different width schemes,it is indicated that the 34 m width of the stope is the optimal scheme.

Key words: gently inclined thick orebody,structural parameters,Mathew stability chart,FLAC3D,ore pillar