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黄金科学技术 ›› 2018, Vol. 26 ›› Issue (3): 342-348.doi: 10.11872/j.issn.1005-2518.2018.03.342

• 采选技术与矿山管理 • 上一篇    下一篇

节理发育岩体巷道掘进爆破数值模拟与应用研究

汪海波,魏国力,宗琦,徐颖   

  1. 安徽理工大学土木建筑学院,安徽 淮南 232001
  • 收稿日期:2017-07-31 修回日期:2018-01-11 出版日期:2018-06-30 发布日期:2018-07-28
  • 作者简介:汪海波(1983-),男,安徽舒城人,博士,副教授,从事爆破工程与冲击动力学方面的教学和研究工作。wanghb_aust@163.com
  • 基金资助:

    国家自然科学基金项目“无限岩体深孔超前破裂爆破岩体破碎机理及应用基础研究”(编号:51404010)、安徽省高校自然科学研究重大项目“高应力场岩体爆破破岩机理研究”(编号:KJ2017ZD11)、安徽省科技攻关计划项目“矿山爆破安全与灾害控制技术”(编号:1501041123)和安徽省博士后基金“硬质层状含软弱夹层岩体爆炸能量传递研究”(编号:2013016)联合资助

Numerical Simulation and Application Research on Joint Development Rock Roadway Blasting Excavation

WANG Haibo,WEI Guoli,ZONG Qi,XU Ying   

  1. School of Civil Engineering and Architecture,Anhui University of Science and Technology,Huainan 232001,Anhui,China
  • Received:2017-07-31 Revised:2018-01-11 Online:2018-06-30 Published:2018-07-28

摘要: 节理面、软弱夹层和断层等地质不连续面是影响巷道掘进爆破效果的重要因素。根据岩体中应力波的传播理论,以某煤矿轨道下山为工程背景,利用LS-DYNA软件对倾角为68°、宽度为3 cm的节理岩体巷道掘进掏槽爆破进行模拟分析,验证了理论分析中节理面对爆炸应力波传播的影响。结果表明:节理面破坏了岩体的整体性,其背爆侧岩石破碎较弱,而迎爆侧由于节理的反射作用岩体破碎加剧。提出了掏槽孔中心直眼采用孔内间隔延期装药结构和?35 mm的炸药以增加掏槽爆破能量,合理布置炮孔、减少节理面附近炮孔装药量,并辅以增加炮孔深度、提高堵塞长度和质量等措施,延长了爆炸能量作用时间,提高了爆破效率。现场应用取得了良好的效果。

关键词: 节理岩体, 巷道, 掘进爆破, 数值模拟, 爆破效率, 地质不连续面, 应力波传播

Abstract: Geological discontinuities such as joints,weak intercalation and faults are the important factors affecting roadway drifting blasting effect.According to the propagation theory of stress wave in rock mass,taking a coal mine roadway downhill as the engineering background,LS-DYNA software was used to simulate and analyze the excavation blasting of jointed rock mass roadway with inclination angle of 68 degree and width 3 cm,and verify the influence of joints on the propagation of stress wave in theoretical analysis.The results show that the joint surface destroys the integrity of rock mass,and the rock fragmentation on the back side of blasthole is weak,and the rock mass breakup is aggravated by the reflection of joint on the side of the attack. Interval hole of cut holes adopted delay filling structure and ?35 mm explosive are used to increase cut blasting energy,the reasonable layout of blast hole,reduce amount of signal hole charge near the joint surface,and increasing blast hole depth,improve the length and quality of block,prolong the explosion energy function,improve the blasting efficiency.The field application has achieved good results.

Key words: jointed rock mass, roadway, drifting blasting, numerical simulation, blasting efficiency, geological discontinuity surface, stress wave propagation

中图分类号: 

  • TD235
[1] 刘福江,王元魁,王振军,等.提高多节理裂隙矿岩爆破质量的探讨[J].黄金科学技术,2012,20(2):71-73.<br />
Liu Fujiang,Wang Yuankui,Wang Zhenjun,et al.Discussion on the enhancement of blasting quality for multi-jointed fracture ore-rock[J].Gold Science and Technology,2012,20(2):71-73.<br />
[2] 杨峰,陈咏泉,王新明,等.水平层状围岩隧道光面爆破效果分析[J].地下空间与工程学报,2005,1(6):956-959.<br />
Yang Feng,Chen Yongquan,Wang Xinming,et al.Analysis of tunnel smooth blasting in horianotal layered rockmass[J].Chinese Journal of Underground Space and Engineering,2005,1(6):956-959.<br />
[3] 刘凤洲,谢雄耀,汪银华,等.节理发育泥岩地区边坡光爆损伤范围预测技术[J].地下空间与工程学报,2009,5(增1):1349-1354.<br />
Liu Fengzhou,Xie Xiongyao,Wang Yinhua,et al.Prediction of damage zone of smooth blasting in jointed mudstone slope[J].Chinese Journal of Underground Space and Engineering,2009,5(Supp.1):1349-1354.<br />
[4] 王卫华,李坤,严哲,等.SHPB 加载作用下考虑节理分形的闭合变形性质研究[J].黄金科学技术,2017,25(1):75-83.<br />
Wang Weihua,Li Kun,Yan Zhe,et al.Study on the closure deformation properties of joint fractal under SHPB load[J].Gold Science and Technology,2017,25(1):75-83.<br />
[5] 王卫华,李坤,严哲,等.节理压缩闭合试验前后表面形态特征变化分析[J].黄金科学技术,2016,24(6):84-89.<br />
Wang Weihua,Li Kun,Yan Zhe,et al.Analysis on changes of surface morphological characteristics of joint under compression closed testing[J].Gold Science and Technology,2016,24(6):84-89.<br />
[6] Niktabar S M M,Rao K S,Shrivastava A K.Effect of rock joint roughness on its cyclic shear behavior[J].Journal of Rock Mechanics and Geotechnical Engineering,2017,9(6):1071-1084.<br />
[7] Roy D G,Singh T N,Kodikara J.Influence of joint anisotropy on the fracturing behavior of a sedimentary rock[J]. Engineering Geology,2017,228:224-237.<br />
[8] Yang R S,Ding C X,Yang L Y,et al.Model experiment on dynamic behavior of jointed rock mass under blasting at high-stress conditions[J].Tunnelling and Underground Space Technology,2018,74:145-152.<br />
[9] 罗光财,李昂波,汪庆桃,等.节理裂隙围岩小直径深竖井爆破开挖[J].爆破,2016,33(1):68-72.<br />
Luo Guangcai,Li Angbo,Wang Qingtao,et al.Blasting excavation of small diameter deep shaft in surrounding rock area with joint fissure[J].Blasting,2016,33(1):68-72.<br />
[10] 谢冰,李海波,王长柏,等.节理几何特征对预裂爆破效果影响的数值模拟[J].岩土力学,2011,32(12):3812-3820.<br />
Xie Bing,Li Haibo,Wang Changbai,et al.Numerical simulation of presplit blasting influenced by geometrical characteristics of joints[J].Rock and Soil Mechanics,2011,32(12):3812-3820.<br />
[11] 璩世杰,刘际飞.节理角度对预裂爆破成缝效果的影响研究[J].岩土力学,2015,36(1):189-204.<br />
Qu Shijie,Liu Jifei.Numerical analysis of joint angle effect on cracking with presplit blasting[J].Rock and Soil Mechanics,2015,36(1):189-204.<br />
[12] 朱亮,陈明,卢文波,等.轮廓爆破下柱状节理岩体开裂过程的数值模拟[J].爆炸与冲击,2015,35(4):555-560.<br />
Zhu Liang,Chen Ming,Lu Wenbo,et al.Numerical simulation on the cracking process of columnar jointed rock masses in contour blasting[J].Explosive and Shock Waves,2015,35(4):555-560.<br />
[13] 张吉宏,刘红岩.节理性质对岩体爆破破坏模式影响的数值分析[J].爆破,2013,30(2):79-83.<br />
Zhang Jihong,Liu Hongyan.Numerical analysis of effect of joint’s property on rock mass blasting failure mode[J].Blasting,2013,30(2):79-83.<br />
[14] 魏晨慧,朱万成,白羽,等.不同地应力条件下含节理岩体爆破的数值模拟[J].工程科学学报,2016,38(1):19-25.<br />
Wei Chenhui,Zhu Wancheng,Bai Yu,et al.Numerical simulation of jointed rock mass blasting under different in-situ stress conditions[J].Chinese Journal of Engineering,2016,38(1):19-25.<br />
[15] 张凤鹏,彭建宇,范光华,等.不同静应力和节理条件下岩体爆破破岩机制研究[J].岩土力学,2016,37(7):1839-1846,1913.<br />
Zhang Fengpeng,Peng Jianyu,Fan Guanghua,et al.Mechanisms of blasting-induced rock fractures under different static stress and joint properties conditions[J].Rock and Soil Mechanics,2016,37(7):1839-1846,1913.<br />
[16] 张国凯,李海波,夏祥,等.节理特性对岩体力学性能的影响[J].中南大学学报(自然科学版),2016,47(12):4198-4205.<br />
Zhang Guokai,Li Haibo,Xia Xiang,et al.Influence of joint features on mechanical properties of rock mass[J].Journal of Central South University(Science and Technology),2016,47(12):4198-4205.<br />
[17] 杨仁树,许鹏,杨立云,等.节理岩体中爆炸应力波传播规律的研究[J].金属矿山,2016,45(6):49-54.<br />
Yang Renshu,Xu Peng,Yang Liyun,et al.Study of regularity of explosive stress wave propagation in jointed rock mass[J].Metal Mine,2016,45(6):49-54.<br />
[18] Deng X F,Zhu J B,Chen S G,et al.Numerical study on tunnel damage subject to blast-induced shock wave in jointed rock masses[J].Tunnelling and Underground Space Technology,2014,43(6):88-100.<br />
[19] 高金石,张奇.爆破理论与爆破优化[M].西安:西安地图出版社,1993:59.<br />
Gao Jinshi,Zhang Qi.Blasting Theory and Blasting Optimization[M].Xi’an:Xi’an Cartographic Publishing House,1993:59.
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