| 钢纤维喷射混凝土支护抗震塌能力数值模拟 |
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| 引用本文： | 范新,陈明雄,章克凌. 钢纤维喷射混凝土支护抗震塌能力数值模拟[J]. 地下空间与工程学报, 2006, 2(2): 225-228,235 |
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| 作者姓名： | 范新 陈明雄 章克凌 |
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| 作者单位： | 第二炮兵指挥学院,武汉,430012;解放军理工大学工程兵工程学院,南京,210007;解放军理工大学工程兵工程学院,南京,210007;第二炮兵指挥学院,武汉,430012 |
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| 摘 要： | 数值模拟过程运用动力分析软件LS-DYNABD，采用任意拉各朗日-欧拉算法，分别对相同岩石条件、相同跨度的坑道，在钢纤维喷射混凝土支护和无支护条件下抗常规爆炸的震塌过程进行了三维数值模拟，并将数值模拟结果与规范中其它支护类型在相同条件下的震塌落石速度进行对比。通过震塌剥落层速度的对比，量化说明了钢纤维喷射混凝土支护抗爆炸震塌的能力。
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| 关 键 词： | 爆炸力学 震塌 钢纤维喷射混凝土 坑道支护 数值模拟 |
| 文章编号： | 1673-0836（2006）02-0225-04 |
| 收稿时间： | 2005-11-10 |
| 修稿时间： | 2005-11-10 |
Numerical Simulation of Spalling Resistance Performance of SFRC |
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| FAN Xin,CHEN Ming-xiong,ZHANG Ke-ling. Numerical Simulation of Spalling Resistance Performance of SFRC[J]. Chinese Journal of Underground Space and Engineering, 2006, 2(2): 225-228,235 |
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| Authors: | FAN Xin CHEN Ming-xiong ZHANG Ke-ling |
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| Abstract: | In this paper, the dynamic analysis sdtware LS-DYNA3D was used in process of numerical simulation. The process of spalling under the attack by conventional explosions was simulated for the tunnel with the same rock condition and span in condition of supporting with and without SFRC respectively. In order to illuminate the resistance performance of SFRC attacked by convenfional explosion quantitatively, the velocities d rockfalls from the top of tunnel supported by SFRC were compared with that of the tunnel supported by other materials and that of the tunnel without support. |
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| Keywords: | mechanics of explosion spalling SFRC tunnel support numerical simulation |
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