爆炸与冲击2018，Vol.38Issue(2)：289-294,6.DOI:10.11883/bzycj-2016-0251
黄土中爆炸挤密实验与数值模拟
Experiment and numerical simulation of explosion compaction in loess
摘要
Abstract
In this work we at first designed and performed some small-scale explosion compaction (EC) outdoor experiments to study the application of EC technology in loess and to verify the feasibility and reliability of numerical simulation by computer software so that the risk of field experiments of EC on existing highways can be avoided.Then,we established the finite element models using the material parameters and the geometric dimensions of the outdoor experiments.Numerical simulations were carried out using ANSYS/LS-DYNA in combination with the above finite element models.By comparing the numerical simulation results with the measured ones in three aspects:the volume of the explosion cavities,the soil density after EC and the peak compressive stress acting on the soil,the feasibility and reliability of using ANSYS/LS-DYNA to simulate the EC of loess were verified.Moreover,the variation laws in the above three aspects were obtained.Our work can provide reference for numerical simulation of EC according to the conditions and the geometrical dimensions of actual loess subgrade.关键词
爆炸挤密/ANSYS/LS-DYNA/数值模拟/黄土/爆腔Key words
explosion compaction/ANSYS/LS-DYNA/numerical simulation/loess/explosion cavity分类
数理科学引用本文复制引用
李海超,魏连雨,常春伟..黄土中爆炸挤密实验与数值模拟[J].爆炸与冲击,2018,38(2):289-294,6.基金项目
河北省交通运输厅科技计划项目(20140629) （20140629）
