| 下庄铜矿爆破施工对临近丙汉河隧道的安全影响 |
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| 引用本文： | 崔光耀,田宇航,王明胜. 下庄铜矿爆破施工对临近丙汉河隧道的安全影响[J]. 吉首大学学报(自然科学版), 2022, 43(4): 51-57. DOI: 10.13438/j.cnki.jdzk.2022.04.010 |
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| 作者姓名： | 崔光耀 田宇航 王明胜 |
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| 作者单位： | （1.北方工业大学土木工程学院，北京 100144；2.中铁城市发展投资集团有限公司，四川 成都 610000） |
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| 基金项目： | 国家自然科学基金资助项目（52178378） |
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| 摘 要： | 通过FLAC3D计算软件，对下庄铜矿爆破时临近隧道衬砌和铁轨的位移、应力和安全系数进行了分析.结果表明，铜矿爆破施工后，衬砌最大水平位移为4.07 mm，最大水平收敛为0.08 mm，最大沉降为4.23 mm，铁轨最大横向位移为3.46 mm，最大沉降为3.48 mm，均符合位移控制标准；衬砌与铁轨的最大主应力、最小主应力、剪应力增加量均较小；衬砌最小安全系数为4.49，符合规范要求.
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| 关 键 词： | 下庄铜矿 隧道工程 爆破施工 位移 应力 安全系数 |
Safety Impact of Blasting Construction in Xiazhuang Copper Mine on Adjacent Binghanhe Tunnel |
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| CUI Guangyao,TIAN Yuhang,WANG Mingsheng. Safety Impact of Blasting Construction in Xiazhuang Copper Mine on Adjacent Binghanhe Tunnel[J]. Journal of Jishou University(Natural Science Edition), 2022, 43(4): 51-57. DOI: 10.13438/j.cnki.jdzk.2022.04.010 |
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| Authors: | CUI Guangyao TIAN Yuhang WANG Mingsheng |
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| Affiliation: | (1.School of Civil Engineering,North China University of Technology,Beijing 100144,China;2.China Railway Urban Development Investment Group Co.,Ltd.,Chengdu 610000,China) |
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| Abstract: | Through FLAC3D calculation software,the displacement,stress and safety factor of adjacent tunnel lining and rail during construction blasting in Xiazhuang copper mine are analyzed.The results show that after the blasting construction,the maximum horizontal displacement of the lining is 4.07 mm,the maximum horizontal convergence is 0.08 mm,the maximum settlement is 4.23 mm,the maximum lateral displacement of the rail is 3.46 mm,and the maximum settlement is 3.48 mm,which all meet the displacement control standard.The maximum principal stress,minimum principal stress and maximum shear stress of lining and rail increase slightly.The minimum safety factor of lining is 4.49,and the safety factor of lining after blasting construction meets the specification requirements. |
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| Keywords: | Xiazhuang copper mine tunnel engineering blasting construction displacement stress safety factor |
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