柱状装药三点起爆加固黄土软基数值模拟研究  

Numerical Simulation on Reinforcing Loess Soft Foundation with Three-point Initiation in Column Charge

作　　者：周双涛 李海超 王鹏[3] 张廷磊 丁展锋 

机构地区：[1]61969部队 [2]军事交通学院国防交通系 [3]军事交通学院研究生管理大队

出　　处：《军事交通学院学报》2017年第8期91-94,共4页Journal of Military Transportation University

摘　　要：为探究爆炸法加固黄土软基的平面布局形式,在两点起爆加固黄土软基研究的基础上,运用ANSYS/LS-DYNA对三点起爆加固黄土软基进行数值模拟研究。通过探究土壤密度、应力变化情况,并分析其承载力大小,得出三点起爆布局形式加固黄土软基效果较好。该爆点布局形式可在平面范围内扩展为"梅花桩"布局形式,可为工程实践中的爆点布局提供参考和借鉴。In order to explore the planar layout of reinforcing loess soft foundation with explosion method, the paper firstly conducts numerical simulation on reinforcing loess soft foundation with three-point initiation by using ANSYS/LS-DYNA on the base of studying two-point initiation. Then, by exploring soil density and stress change and analyzing the bearing capacity, it draws the conclusion that reinforcing loess soft foundation with three-point initiation has better effect. The layout of three-point initiation can be expanded to quincuncial piles in the plane range, which can provide reference for explosion layout in engineering practice.

关 键 词：爆炸法 加固 黄土软基 柱状装药 三点起爆 

分 类 号：O382.2[理学—流体力学]