The Study on the Radial Decoupling Coefficient in Tunnel Smooth Blasting Based on Numerical Simulation

摘要：

Choosing a fit decoupling coefficient in tunnel smooth blasting can avoid producing crushed zone on the hole wall, it also can improve the energy use efficiency of the explosive and improve the quality of tunnel smooth blasting. Based on the practical engineering, the 3D FEM simulation models with different radial decoupling charge were built and the fluid-solid coupling theory was introduced. After the ANSYS/LS-DANA simulation calculation and the comparison of the stress of the key parts, the classical blasting theory was verified and the optimal decoupling coefficient was worked out, it provides references to blasting numerical simulation.

关键词： radial decoupling charge decoupling coefficient smooth blasting numerical simulation

作者: Luo Wei Zhu Chuanyun Zheng Huawei Wang Zhendong

作者单位: State Key Laboratory of Water Resource and Hydropower Engineering Science, School of Water Resource Ministry of Chemical Industry Changsha Design and Research Institute, Changsha 410117, China Dongguan Hydraulic Engineering Consulting Co. , Ltd, Dongguan 523016, China

会议类型: 国际会议

会议名称: The 3rd International Symposium on Modern Mining & Safety Technology Proceedings(第三届现代采矿与安全技术国际学术会议)

会议地点: 辽宁阜新

会议语种:英文

页码: 854-860

在线出版日期: 2008-08-04（万方平台首次上网日期，不代表论文的发表时间）