img

QQ群聊

img

官方微信

  • CN 62-1112/TF 
  • ISSN 1005-2518 
  • 创刊于1988年
高级检索
采选技术与矿山管理

复杂开采环境下采场位移失稳过程研究

  • 孟坤 ,
  • 罗周全 ,
  • 秦亚光
展开
  • 中南大学资源与安全工程学院,湖南  长沙   410083
孟坤(1988-),男,河南焦作人,硕士研究生,从事地下金属矿采矿方法及技术研究工作。517348187@qq.com

收稿日期: 2016-07-01

  修回日期: 2016-11-03

  网络出版日期: 2017-05-12

基金资助

国家自然科学基金项目“金属矿山采场冒顶声发射信号混沌辨析及其智能预报研究”(编号:51274250)资助

Study on the Stope Displacement Unstability Process Under Complex Mining Environment

  • MENG Kun ,
  • LUO Zhouquan ,
  • QIN Yaguang
Expand
  • School of Resources and Safety Engineering,Central South University,Changsha    410083,Hunan,China

Received date: 2016-07-01

  Revised date: 2016-11-03

  Online published: 2017-05-12

摘要

针对复杂开采环境下采场发生大规模竖直位移从而引起失稳垮塌的问题,结合某地下大型铅锌矿山-320 m中段主矿体失稳垮塌的工程实际,运用三维计算机数值程序3DEC对采场及周边充填体竖直位移程度、影响范围和最大剪应力分布规律进行了分析,为隐患资源安全高效回收及确定合理的充填工艺和采矿方法提供了重要依据。结果表明:0#采空区上方的矿体整体发生了下沉,下沉最大位移达到2 m;发生最大剪应变增量的区域主要位于0#采场中下部,并最终形成了一条U形最大剪应变增量贯通带;0#采场采空区垮塌后导致0#采场上部矿体、N0-1#、N1-2#、S0-1#付以及S0-1#付-1采场位于垮塌区滑移面之上,而N2-3#和S1-2#采场位于垮塌面边沿,从而将其确定为垮塌区的影响范围。

本文引用格式

孟坤 , 罗周全 , 秦亚光 . 复杂开采环境下采场位移失稳过程研究[J]. 黄金科学技术, 2017 , 25(2) : 70 -75 . DOI: 10.11872/j.issn.1005-2518.2017.02.070

Abstract

Mass vertical displacement collapsed in environment of complex mining stope always cause instability problems.By combining with the engineering practice of collapse in -320 m midway through the main orebody buckling in certain large lead and zinc underground mines,the three dimensional computer numerical program 3DEC was used to analyze the vertical displacement of stope filling body and around the degree,influence range and maximum shear stress distribution.It provides an important basis for the safe and efficient recovery of hidden resources and the determination of reasonable filling technology and mining methods.The results show that 0# ore body above the mined-out area overall sinking,the maximal sinking displacement is up to 2 m.The maximum shear strain increment region is mainly located in 0 # stope part,and eventually formed a U-shaped maximum shear strain increment through belt.The 0# stope collapse caused upper 0# stope ore body,mined-out area of N0-1#,N1-2#,S0-1#FU  and S0-1# FU-1 located in the area above the slip surface,and N2-3# and S1-2# stope in the collapse edge.It is determined as the influence area of the collapse area.

参考文献

[1] Liu Xiaoming,Zhang Wei,Liu Weizhou,et al.Integrated technology for recovering the hidden trouble resource based on a cavity monitoring system[J].Metal Mine,2008(8):88-91.[刘晓明,张伟,刘为洲,等.基于空区实测的隐患资源回收综合技术研究[J].金属矿山,2008(8):88-91.]
[2] Li Shulin.Study on the geological hazard in metal mines and its prevention countermeasures[J].The Chinese Journal of Geological Hazard and Control,2002,13(4):44-48.[李庶林.论我国金属矿山地质灾害与防治对策[J].中国地质灾害与防治学报,2002,13(4):44-48.]
[3] Peng Yongwei,Qi Qingxin,Wang Yougang,et al.Study of field measurement of mining-induced coal fracture field and its application[J].Chinese Journal of Rock Mechanics and Engineering,2010,29(S2):4188-4193.[彭永伟,齐庆新,汪有刚,等.煤体采动裂隙现场实测及其应用研究[J].岩石力学与工程学报,2010,29(增2):4188-4193.]
[4] Liu Weiqiang.The study on hidden danger resources mining technology in No.21 blind vein of Yuerya gold mine[J].Hunan Nonferrous Metals,2014,30(2):1-4,60.[刘伟强.峪耳崖金矿盲21#脉采空区隐患资源回采技术研究[J].湖南有色金属,2014,30(2):1-4,60.]
[5] Luo Z Q,Xie C Y,Jia N,et al.Safe roof thickness and span of stope under complex filling body[J].Journal of Central South University,2013,20(12):3641-3647.
[6] Yang Guantao,Li Xibing,Wang Qisheng,et al.Criterion for judging energy mutation in destabilized stope and its app- lication[J].Journal of Mining and Safety Enineering,2008,25(3):268-271,276.[杨官涛,李夕兵,王其胜,等.地下采场失稳的能量突变判断准则及其应用[J].采矿与安全工程学报,2008,25(3):268-271,276.]
[7] Yao B H,Bai H B,Zhang B Y.Numerical simulation on the risk of roof water inrush in Wuyang coal mine[J].Inter- national Journal of Mining Science and Technology,2012(2):273-277.
[8] Zhang Yaoping,Cao Ping,Dong Longjun,et al.A robust regression model and its application in calculating shear strength of  rock[J].Science & Technology Review,2010,28(7):91-95.[张耀平,曹平,董陇军,等.岩石抗剪强度计算的稳健回归模型及其应用[J].科技导报,2010,28(7):91-95.]
[9] Xie Chengyu,Luo Zhouquan,Jia Nan,et al.Safety roof cutting thickness in mining gently inclined and extremely thick ore body[J].Journal of Mining and Safety Engineering,2013,30(2):278-284.[谢承煜,罗周全,贾楠,等.缓斜极厚矿体开采安全切顶厚度研究[J].采矿与安全工程学报,2013,30(2):278-284.]
[10] Li Donglin,Wu Shuren,Han Jinliang,et al.Crustal stress modelling and engineering geology problems of Qinling Dabashan tunnel for diversion project[J].Geology and Pros- pecting,2008,44(5):81-86.[李东林,吴树仁,韩金良,等.引水工程秦巴段隧洞地应力模拟及工程地质问题[J].地质与勘探,2008,44(5):81-86.]
[11] Zhou Lianjun,Peng Zhenbin,He Zhongming,et al.Test for shear characteristics of structural plane and its numerical simulation analysis[J].Science & Technology Review,2009, 27(4):31-35.[周莲君,彭振斌,何忠明,等.结构面剪切特性的试验与数值模拟分析[J].科技导报,2009,27(4):31-35.]
[12] Feng W K,Huang R Q,Li T B.Deformation analysis of a soft-hard rock contact zone surrounding a tunnel[J].Tunnelling and Underground Space Technology,2012,32:190-197.
[13] Zhao Kui,Jin Jiefang,Liu Mingsong,et al.Experimental  research and numerical simulation of acoustic emission of memory effect of rock stress under point load[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(S1):2695-2702.[赵奎,金解放,刘明松,等.岩石点荷载作用下对应力记忆效应的声发射数值模拟与试验研究[J].岩石力学与工程学报,2009,28(增1):2695-2702.]
[14] Xu Tao,Tang Chun’an,Wang Shuhong,et al.Numerical tests on confining pressure effect in rock failure process[J].Journal of Central South University,2004,35(5):840- 844.[徐涛,唐春安,王述红,等.岩石破裂过程围压效应的数值试验[J].中南大学学报(自然科学版),2004,35(5):840-844.]
[15] Cai Ming,Zhao Xingguang,Kaiser P K,et al.On field strength of massive rocks[J].Chinese Journal of Rock Mecha- nics and Engineering,2014,33(1):1-13.[蔡明,赵星光,Kaiser P K,等.论完整岩体的现场强度[J].岩石力学与工程学报,2014,33(1):1-13.]
[16] Qian Qihu,Qi Chengzhi.Dynamic strength and dynamic fracture criteria of rock and rock mass[J].Journal of Tongji University(Natural Science), 2008,36(12):1599-1605. [钱七虎,戚承志.岩石、岩体的动力强度与动力破坏准则[J].同济大学学报(自然科学版),2008,36(12):1599-1605.]
[17] Sui Bin,Zhu Weishen,Li Shuchen,et al.Simulation of mechanical response of deep rock pillar triggered by dynamic disturbance[J].Rock and Soil Mechanics,2009,30(8):2501-2505.[隋斌,朱维申,李树忱,等.深部岩柱在动态扰动下力学响应的数值模拟[J].岩土力学,2009,30(8):2501-2505.]

文章导航

/