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

机译：基于数值模拟的隧道光面爆破径向解耦系数研究

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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.

机译：在隧道光面爆破中选择合适的解耦系数可以避免在孔壁上产生破碎区，也可以提高炸药的能量利用效率，提高隧道光面爆破的质量。在实际工程的基础上，建立了具有不同径向解耦电荷的三维有限元仿真模型，并介绍了流固耦合理论。通过ANSYS / LS-DANA仿真计算，并对关键部位的应力进行比较，验证了经典爆破理论，得出了最佳的解耦系数，为爆破数值模拟提供了参考。

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来源
《The 3rd international symposium on modern mining amp; safety technology proceedings》|2008年|p.854-860|共7页
会议地点 Fuxin(CN)
作者
Luo Wei; Zhu Chuanyun; Zheng Huawei; Wang Zhendong;
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作者单位

State Key Laboratory of Water Resource and Hydropower Engineering Science, School of Water Resource and Hydropower, Wuhan University, Wuhan 430072, China;

State Key Laboratory of Water Resource and Hydropower Engineering Science, School of Water Resource and Hydropower, Wuhan University, Wuhan 430072, China;

Ministry of Chemical Industry Changsha Design and Research Institute, Changsha 410117, China;

Dongguan Hydraulic Engineering Consulting Co. , Ltd, Dongguan 523016, China;

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会议组织
原文格式 PDF
正文语种 eng
中图分类矿山开采;
关键词
radial decoupling charge; decoupling coefficient; smooth blasting; numerical simulation;

机译：径向解耦装药;解耦系数;光滑爆破;数值模拟;

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

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