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[1]胡刚,费鸿禄,国志雨.大空孔复式筒形直眼掏槽力学机制与数值模拟分析[J].中国安全生产科学技术,2018,14(9):129-135.[doi:10.11731/j.issn.1673-193x.2018.09.021]
　HU Gang,FEI Honglu,GUO Zhiyu.Mechanical mechanism and numerical simulation analysis of compound barrel parallel cut with big cavity[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2018,14(9):129-135.[doi:10.11731/j.issn.1673-193x.2018.09.021]
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大空孔复式筒形直眼掏槽力学机制与数值模拟分析
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
14
期数:
2018年9期
页码:
129-135
栏目:
职业安全卫生管理与技术
出版日期:
2018-09-30

文章信息/Info

Title:
Mechanical mechanism and numerical simulation analysis of compound barrel parallel cut with big cavity
文章编号:
1673-193X(2018)-09-0129-07
作者:
胡刚1; 费鸿禄1; 国志雨2
（1.辽宁工程技术大学 爆破技术研究院，辽宁 阜新 123000；2.中国能源建设集团黑龙江省电力设计院有限公司，黑龙江 哈尔滨 150078）
Author(s):
HU Gang1;  FEI Honglu1;  GUO Zhiyu2
(1. Institute of Blasting Technique, Liaoning Technical University, Fuxin Liaoning 123000, China;2. China Energy Construction Group Heilongjiang Electric Power Design Institute Co., Ltd., Haerbin Heilongjiang 150078, China)
关键词:
直眼掏槽; 复式筒形; 大空孔; 力学机制; 数值模拟
Keywords:
parallel cut;  compound barrel;  big cavity;  mechanical mechanism;  numerical simulation
分类号:
TD263
DOI:
10.11731/j.issn.1673-193x.2018.09.021
文献标志码:
A
摘要:
为了解决矿山硬岩巷道爆破开挖存在炸药单耗高、炮眼利用率低和掘进深度短等问题，应用理论分析、数值模拟与现场实践相结合的方法，提出大空孔复式筒形直眼掏槽方式。根据静力学理论，简化掏槽区域岩体只受爆生气体的准静态膨胀作用，并在复式筒形直眼掏槽腔体成形力学机制的基础上，分析大空孔形式下空腔形成的物理力学过程；采用LS-DYNA软件建立数值模型，基于材料参数和状态方程，仿真分析大空孔复式筒形直眼掏槽槽腔有效应力的传播机理；依据巷道尺寸及爆破参数，进行大空孔复式筒形掏槽掘进现场试验。试验结果表明：炮眼利用率提高到89.0%，掘进深度达到2.8 m，炸药单耗降低到3.16 kg/m3，充分证明大空孔复式筒形直眼掏槽方式的可行性。
Abstract:
In order to solve the problems of high unit consumption of explosive, low utilization rate of blast hole and short excavation depth in the blasting excavation of hard rock roadway in mine, a way of compound barrel parallel cut with big cavity was put forward by using the combined methods of theoretical analysis, numerical simulation and field practice. It was simplified that the rock mass in the cut area was only affected by the quasistatic expansion effect of explosive gas according to the mechanics theory, and the physical and mechanical processes of cavity formation under the form of big cavity were analyzed on the basis of the mechanical mechanism of cavity formation in the compound barrel parallel cut. A numerical model was established by using the LS-DYNA software, and the simulation analysis on the propagation mechanism of effective stress in the cavity of compound barrel parallel cut with big cavity was carried out based on the material parameters and state equations. The field tests of excavation by the compound barrel parallel cut with big cavity were conducted according to the roadway size and blasting parameters. The results showed that the utilization rate of blast hole increased to 89.0 %, the excavation depth reached 2.8 m, and the unit consumption of explosive reduced to 3.16 kg/m3, which fully proved the feasibility of the compound barrel parallel cut with big cavity.

参考文献/References:

［1］岳中文, 郭洋, 王煦，等. 空孔形状对岩石定向断裂爆破影响规律的研究［J］. 岩土力学, 2016, 37(2): 376-382. YUE Zhongwen, GUO Yang, WANG Xu, et al. Influence of empty hole shape on directional fracture controlled blasting of rock［J］. Rock and Soil Mechanics, 2016, 37(2): 376-382.
［2］陈秋宇, 李海波, 夏祥，等. 爆炸荷载下空孔效应的研究与应用［J］. 煤炭学报, 2016, 41(11): 2749-2755. CHEN Qiuyu, LI Haibo, XIA Xiang, et al. Research and application of empty hole effect under blasting loading［J］. Journal of China Coal Society, 2016, 41(11): 2749-2755.
［3］杨仁树. 我国煤矿岩巷安全高效掘进技术现状与展望［J］.煤炭科学技术, 2013, 41(9): 18-23. YANG Renshu. Present status and outlook on safety and high efficient heading technology of mine rock roadway in china［J］. Coal Science and Technology, 2013, 41(9): 18-23.
［4］宗琦, 邵连军. 立井深孔直眼掏槽大直径中心空孔作用分析和参数计算［J］. 爆破, 2015, 32(1): 11-15. ZONG Qi, SHAO Lianjun. Large diameter empty hole effect analysis and parameters calculation of parallel cut in rock shaft［J］. Blasting, 2015, 32(1): 11-15.
［5］田运生, 费鸿禄, 左金库，等. 下穿引水隧洞爆破振动影响新建铁路隧道响应测试［J］. 辽宁工程技术大学学报(自然科学版), 2013, 32(9): 1166-1171. TIAN Yunsheng, FEI Honglu, ZUO Jinku, et al. Measurement on effects of blasting excavation of underpass diversion tunnel on the response of newly-built railway tunnel［J］. Journal of Liaoning Technical University(Natural Science Edication), 2013, 32(9): 1166-1171.
［6］阳雨平, 胡德炯. 复式桶形直眼掏槽中深孔爆破法掘进实验［J］. 黄金科学技术, 2015, 23(6): 64-69. YANG Yuping, HU Dejiong. Testing on medium length hole blasting technique of compound barrel straight cutting in tunnel excavating［J］. Gold Science and Technology, 2015, 23(6): 64-69.
［7］汪海波, 宗琦, 赵要才. 立井大直径中空孔直眼掏槽爆炸应力场数值模拟分析与应用［J］. 岩石力学与工程学报, 2015, 34(S1): 3223-3229. WANG Haibo, Zong Qi, ZHAO Yaocai. Numerical analysis and application of large diameter cavity parallel cut blasting stress field in vertical shaft［J］. Chinese Journal of Rock Mechanics and Engineering, 2015, 34(S1): 3223-3229.
［8］LANGEFORS U, KIHLSTROM B. The modern technique of rock blasting［M］. Stockholm:Almquist and Wiksell, 1963.
［9］李启月, 黄武林, 吴正宇，等. 不同地应力条件下直眼掏槽破岩的理论研究与数值模拟［J］. 中国安全生产科学技术, 2016, 12(11): 57-62. LI Qiyue, HUANG Wulin, WU Zhengyu, et al. Theoretical study and numerical simulation on rock failure process in cutting by parallel hole under different ground stress conditions［J］. Journal of Safety Science and Technology, 2016, 12(11): 57-62.
［10］林大能, 陈寿如. 空孔直眼掏槽成腔模型理论与实践分析［J］. 岩土力学, 2005，26(3): 479-483. LIN Daneng, CHEN Shouru. Experimental and theoretical study of parallel hole cut blasting with cavity［J］. Rock and Soil Mechanics, 2005，26(3): 479-483.
［11］郑祥滨, 璩世杰, 范利华，等. 单螺旋空孔直眼掏槽成腔过程数值模拟研究［J］. 岩土力学, 2008，29(9): 2589-2594. ZHENG Xiangbin, QU Shijie, FAN Lihua, et al. Numerical simulation of cavity formation process by single helix parallel hole cut blasting［J］.Rock and Soil Mechanics,2008，29(9):2589-2594.
［12］岳中文, 杨仁树, 郭东明，等. 爆炸作用下空孔周围应力场变化的模型实验［J］. 煤炭学报, 2009, 34(5): 624-628. YUE Zhongwen, YANG Renshu, GUO Dongming, et al. Model experimental of stress field around empty hole under blasting loading［J］. Journal of China Coal Society, 2009, 34(5): 624-628.
［13］杨仁树, 陈程, 王煦，等. 不同直径空孔对爆生裂纹扩展行为影响规律的实验研究［J］. 煤炭学报, 2017, 42(10): 2498-2503. YANG Renshu, CHEN Cheng, WANG Xu, et al. Experimental investigation on the influence of different diameter empty holes on the crack growth behavior of blasting［J］. Journal of China Coal Society, 2017, 42(10): 2498-2503.
［14］张智宇, 黄永辉, 凡春礼. 复杂环境下挖孔桩控制爆破的安全实施［J］. 中国安全生产科学技术, 2015, 11(3): 118-122. ZHANG Zhiyu, HUANG Yonghui, FAN Chunli. Safety implementation of controlled blasting in excavation of dig-hole pile under complex environment［J］. Journal of Safety Science and Technology, 2015, 11(3): 118-122.
［15］TARAN E P, SHAPIRO V YA. Action of the explosion a blast hole charge in the design of a direct cut with a compensation hole［J］. Journal of Mining Science, 1982, 18(2): 119-122.
［16］王仁涛, 王成虎, 宋凯. 青岛地铁超浅埋段爆破振动监测数据特征研究［J］. 中国安全生产科学技术, 2015, 11(12): 72-78. WANG Rentao, WANG Chenghu, SONG Kai. Study on characteristics of monitoring data for blasting vibration in the ultra-shallow buried section of Qingdao metro［J］. Journal of Safety Science and Technology, 2015, 11(12): 72-78.
［17］邹新宽. 浅埋连拱隧道开挖爆破动力响应特征及减振技术研究［D］.成都： 西南交通大学, 2016.
［18］付佳佳, 陈必港, 尤涛，等. “空孔效应”对光面爆破效果的影响分析［J］. 有色金属(矿山部分), 2017, 69(1): 44-49. FU Jiajia, CHEN Bigang, YOU Tao， et al. Analysis on the Influence of Empty Hole Effect on Smooth Blasting［J］. Nonferrous Metals(Mining Section), 2017, 69(1): 44-49.
［19］国志雨. 硬岩巷道掘进深孔直眼掏槽爆破试验与应用研究［D］. 阜新：辽宁工程技术大学, 2017.
［20］汪旭光. 爆破手册［M］. 北京: 冶金工业出版社, 2010.
［21］郭东明, 王豪, 李孝林，等. 益新矿中心大空孔掏槽爆破扩腔过程数值分析［J］. 爆破, 2017, 34(2): 9-14. GUO Dongming, WANG Hao, LI Xiaolin, et al. Numerical analysis on expansion chamber process of large hollow hole cut blasting in Yixin coal mine［J］. Blasting, 2017, 34(2): 9-14.

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备注/Memo

备注/Memo:
收稿日期： 2018-07-07
作者简介： 胡刚，博士研究生，主要研究方向为井巷工程与安全技术。
更新日期/Last Update: 2018-10-09