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浅埋隧道掘进爆破地表震动效应数值模拟

曹孝君 张继春 吕和林 郭建群

曹孝君, 张继春, 吕和林, 郭建群. 浅埋隧道掘进爆破地表震动效应数值模拟[J]. 西南交通大学学报, 2006, 19(6): 680-684.
引用本文: 曹孝君, 张继春, 吕和林, 郭建群. 浅埋隧道掘进爆破地表震动效应数值模拟[J]. 西南交通大学学报, 2006, 19(6): 680-684.
CAO Xiaojun, ZHANG Jichun, LU Helin, GUO Jianqun. Numerical Simulation of Ground Vibration Effects in Shallow Tunneling Blasting[J]. Journal of Southwest Jiaotong University, 2006, 19(6): 680-684.
Citation: CAO Xiaojun, ZHANG Jichun, LU Helin, GUO Jianqun. Numerical Simulation of Ground Vibration Effects in Shallow Tunneling Blasting[J]. Journal of Southwest Jiaotong University, 2006, 19(6): 680-684.

浅埋隧道掘进爆破地表震动效应数值模拟

详细信息
    作者简介:

    曹孝君(1974- ),男,博士,研究方向为岩土工程与爆破工程,电话:028-66224859,E-mail:cxj7412@sina.com

Numerical Simulation of Ground Vibration Effects in Shallow Tunneling Blasting

  • 摘要: 以渝怀铁路人和场隧道爆破施工为背景,采用动力有限元法对浅埋隧道掘进爆破引起的地表震动效应进行了数值模拟.所建立的数值计算模型以地表和隧道已开挖区周边作为自由边界,其余为固定边界,实测隧道壁质点振动波形作为输入荷载.模拟获得的振动波形与实测波形相近,振动速度随时间和距离的衰减规律也与现场实测基本一致.对比分析模拟波形和实测波形的振动特征参数表明,模拟波形能反映质点的实际振动特征,其振幅、主频和持时的相对误差均值分别为9.14%,12.85%和17.57%.

     

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出版历程
  • 收稿日期:  2006-01-18
  • 刊出日期:  2006-12-25

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