肖定军,郭学彬,蒲传金,刘一伟,代仁平

• 1:西南科技大学环境与资源学院

摘要(Abstract)：

对单孔单侧护壁爆破进行了砂浆模型试验,并对护壁面和临空面进行了动态应变测试,测试结果显示护壁面的应变峰值较临空面降低了44%;运用LS-DYNA3D有限元软件对该试验进行三维数值模拟,分析了炮孔周围介质的有效应力场、压力场、速度场及质点位移的发展和分布。结果表明:护壁面方向的压力、速度、位移的峰值分别较临空面方向降低了46%、43%、40%,并发生了不同程度的滞后,数值模拟结果与模型试验结果有很好的一致性。

关键词(KeyWords)： 护壁爆破;数值模拟;护壁面方向;临空面方向

Abstract:

Keywords:

基金项目(Foundation): 绵阳市科委资助项目

作者(Author): 肖定军,郭学彬,蒲传金,刘一伟,代仁平

参考文献(References)：

• [1]赵同彬,顾士坦,马志涛.岩石爆破理论与工程综述及展望[J].山东科技大学学报:自然科学版,2003,22(1):108-112.[1]ZHAO Tongbin,GU Shitan,MA Zhitao.Summary of Rock Blasting Theory and Engineering and Its Prospect[J].Journal of Shandong Inst of Min&Tech,2003,22(1):108-112.
• [2]蔡福广.光面爆破新技术[M].北京:中国铁道出版社,1994.[2]CAI Fuguang.A New Technique of Sooth Blasting[M].Beijing:China Railway Publishing House,1994.
• [3]张志呈.定向断裂控制爆破[M].重庆:重庆大学出版社,1997.[3]ZHANG Zhicheng.Directional Fracture Controlled Blas-ting[M].Chongqing:Chongqing University Press,1997.
• [4]郭学彬,张志呈,蒲传金,等.护壁爆破的基本原理与爆破效果的声波评价[J].爆破,2006,23(4):9-14.[4]GUO Xuebin,ZHANG Zhicheng,PUChuanjin,et al.Prin-ciple of Double-pipe Protecting Borehole Wall Blasting and Sonic Wave Evaluation of Blasting Effect[J].Blas-ting,2006,23(4):9-14.
• [5]袁坤德,龚成.光面护壁爆破的护壁效果及作用机理探讨[J].西南科技大学学报,2006,12:47-52.[5]YUAN Kunde,GONG Cheng.Breast Wall Effect of Doub-le-pipe Protecting Borehole Wall Blasting and Its Func-tional Mechanis[J].Journal of SWUST,2006,12:47-52.
• [6]刘殿书,王万富,杨吕俊,等.初始应力条件下爆破机理的动光弹实验研究[J].煤炭学报,1999,6:612-614.[6]LIU Dianshu,WANG Wanfu,YANG Lujun,et al.Holo-photoelasticity Study on Mechanism of Blasting under Ini-tiative Stress Field[J].Journal of China Coal Society,1999,6:612-614.
• [7]高全臣,刘殿书.岩石爆破测试原理与技术[M].北京:煤炭工业出版社,1961.[7]GAO Quancheng,LIU Dianshu.The Principle and Tech-nique of Blasting in Rock[M].Beijing:China Coal In-dustry Publishing House,1961.
• [8]潘功配,杨硕.烟火学[M].北京:北京理工大学出版社,1997.[8]PAN Gongpei,YANG Suo.The Subject of Pyrotechnical[M].Beijing:Beijing Institute of Technology Press,1997.
• [9]李翼祺,马素贞.爆炸力学[M].北京:科学出版社,1992.[9]LI Yiqi,MA Suzhen.Explosion Mechanics[M].Beijing:Science Press,1992.
• [10]章冠人,陈大年.凝聚炸药起爆动力学[M].北京:国防工业出版社,1991.[10]ZHANG Guanren,CHEN Danian.The Initiation Explo-sion Mechanics of Condensed Explosive[M].Beijing:National Defence Industry Press,1991.
• [11]时党勇,李裕春,张胜民.基于ansys/ls-dyna8.1进行显示动力分析[M].北京:清华大学出版社,2005.[11]SHI Dangyong,LI Yuchun,ZHANG ShengMin.The Anal-ysis of Explicit Explosion Mechanics Base on Ansys/Ls-dyna8.1[M].Beijing:Singhua University Press,2005.
• [12]尚晓江,苏建宇.ANYSYS/LS-DYNA动力分析方法与工程实例[M].北京:中国水利水电出版社,2005.[12]SHANG Xiaojiang,SU Jiangyu.The Methd of Dynamic Analysis and by ANYSYS/LS-DYNA[M].Beijing:Chi-na Water and Hydropower Publishing House,2005.
• [13]HallquistJO.LSDYNA Key User′s Manual[M].Califor-nia:Livermore Software Technology Corporation,2003.
• [14]张风国,李恩征.大应变、高应变率及高压强条件下混凝土的计算模型[J].爆炸与冲击,2002,22(3):198-202.[14]ZHANG Fengguo,LI Enzheng.A Computational Model for Concrete Subjected to Large Strains,High Strain Rates,and High Pressures[J].Explosion and Shock Waves,2002,22(3):198-202.
• [15]王兴海.PVC-U给水管材料力学破坏原因初探及预防[J].聚氯乙烯,2005,10:23-29.[15]WANG Xinghai.Preliminary Research on the Reasons for the Mechanical Failure of PVC Feed Water Pipe and the Preventive Measures[J].Polyvinyl Chloride,2005,10:23-29.
• [16]John O Hallquist.LS-DYNA Theory Manual[M].Cali-fornia:Livermore Software Technology Corporation,2006.