钢纤维喷射混凝土支护抗震塌能力数值模拟  

Numerical Simulation of Spalling Resistance Performance of SFRC

作　　者：范新[1] 陈明雄[2] 章克凌[1] 

机构地区：[1]第二炮兵指挥学院,武汉430012 [2]解放军理工大学工程兵工程学院,南京210007

出　　处：《地下空间与工程学报》2006年第2期225-228,235,共5页Chinese Journal of Underground Space and Engineering

摘　　要：数值模拟过程运用动力分析软件LS_DYNA3D,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。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.

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 

分 类 号：O38[理学—流体力学] TB115[理学—力学]